subject:(Drought)

Texas A&M University

1. Yildirim, Gokhan. Spatial Drought Risk Assessment Using Standardized Precipitation Index and Effective Drought Index: Edwards Aquifer Region.

Degree: MS, Biological and Agricultural Engineering, 2015, Texas A&M University

URL: http://hdl.handle.net/1969.1/154966

► Though drought is a recurrent natural disaster in Texas, little attention has been so far paid to the preparedness of drought for spatial drought risk… (more)

Subjects/Keywords: drought hazard; drought risk assessment

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APA (6^th Edition):

Yildirim, G. (2015). Spatial Drought Risk Assessment Using Standardized Precipitation Index and Effective Drought Index: Edwards Aquifer Region. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/154966

Chicago Manual of Style (16^th Edition):

Yildirim, Gokhan. “Spatial Drought Risk Assessment Using Standardized Precipitation Index and Effective Drought Index: Edwards Aquifer Region.” 2015. Masters Thesis, Texas A&M University. Accessed April 19, 2021. http://hdl.handle.net/1969.1/154966.

MLA Handbook (7^th Edition):

Yildirim, Gokhan. “Spatial Drought Risk Assessment Using Standardized Precipitation Index and Effective Drought Index: Edwards Aquifer Region.” 2015. Web. 19 Apr 2021.

Vancouver:

Yildirim G. Spatial Drought Risk Assessment Using Standardized Precipitation Index and Effective Drought Index: Edwards Aquifer Region. [Internet] [Masters thesis]. Texas A&M University; 2015. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/1969.1/154966.

Council of Science Editors:

Yildirim G. Spatial Drought Risk Assessment Using Standardized Precipitation Index and Effective Drought Index: Edwards Aquifer Region. [Masters Thesis]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/154966

Université de Neuchâtel

2. Möck, Christian. Evaluating the effect of climate change on groundwater resources: from local to catchment scale.

Degree: 2013, Université de Neuchâtel

URL: http://doc.rero.ch/record/209740

► There is strong evidence that climate is changing and will affect the water resources. A major question arising from the evaluation of climate change (CC)… (more)

▼ There is strong evidence that climate is changing and will affect the water resources. A major question arising from the evaluation of climate change (CC) impacts on groundwater resources is to what extent groundwater recharge will change. Given that for Switzerland, climate models predict more frequent hot and dry summers in the future while precipitation will tend to increase in winter, a special attention was given to possible changes in the seasonal distribution of recharge. However, to provide robust predictions, uncertainty has to be considered in all simulations. Three uncertainty sources can be distinguished: the latter can originate from climate models uncertainty, the unknown evolution of land use and society in general, and the hydrological models themselves. The role of these three types of uncertainty has received a major attention in this study. Three studies were carried out to evaluate the effect of CC on the hydrological system. Two of these studies were dedicated to the topic of groundwater recharge whereas the third was focused on the CC response of an aquifer system. The first recharge related study deals with the question of how uncertainty due to climate models interacts with uncertainty associated with different hydrological models. Although different models were used to simulate groundwater recharge in numerous climate impact studies, it is not yet clear whether models of different complexity give similar recharge predictions for a given climate scenario. Therefore, five different commonly used approaches to simulate groundwater recharge were compared under CC. In this analysis models with different complexity were applied over a time span of several years and predictive model bias occurs. Using CC data with more extreme weather conditions increases the resulting bias. The potential for model predictive error increases with the difference between the climatic forcing function used in the CC predictions and the climatic forcing function used in calibration period. The difference between the reference recharge and simulated recharge from physical based but homogenous model as well as semi-mechanistic model are smallest whereas the differences increase with the simple models. The differences are due to structural model deficits such as the limitation of reproducing preferential flow. Thus, results of CC impact studies using the soil water balance approach to estimate recharge need to be interpreted with caution, although the majority of CC impact assessment studies are using this approach. Comparison of both uncertainties, i.e. CC and model simplification, indicate that the highest uncertainty is related to CC, but a model simplification can also introduce a significant predictive error. The second recharge related study explores how different crops and crop rotations influence CC effects on groundwater recharge. The predicted temperature increase will doubtlessly lead to an increase in evaporation and can be intensified by the presence of crops. To address this question, we relied… Advisors/Committee Members: Daniel (Dir.), Philip (Codir.).

Subjects/Keywords: drought frequency

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APA (6^th Edition):

Möck, C. (2013). Evaluating the effect of climate change on groundwater resources: from local to catchment scale. (Thesis). Université de Neuchâtel. Retrieved from http://doc.rero.ch/record/209740

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Möck, Christian. “Evaluating the effect of climate change on groundwater resources: from local to catchment scale.” 2013. Thesis, Université de Neuchâtel. Accessed April 19, 2021. http://doc.rero.ch/record/209740.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Möck, Christian. “Evaluating the effect of climate change on groundwater resources: from local to catchment scale.” 2013. Web. 19 Apr 2021.

Vancouver:

Möck C. Evaluating the effect of climate change on groundwater resources: from local to catchment scale. [Internet] [Thesis]. Université de Neuchâtel; 2013. [cited 2021 Apr 19]. Available from: http://doc.rero.ch/record/209740.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Möck C. Evaluating the effect of climate change on groundwater resources: from local to catchment scale. [Thesis]. Université de Neuchâtel; 2013. Available from: http://doc.rero.ch/record/209740

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

3. McRoberts, Douglas Brent. Drought over the past century in Texas and New Mexico: reducing inhomogeneities in long-term climate records via statistical methods to study drought.

Degree: MS, Atmospheric Sciences, 2008, Texas A&M University

URL: http://hdl.handle.net/1969.1/85898

► This research looks at the past century of Texas and New Mexico climate in order to create datasets sufficient for documenting climatic variations. Inhomogeneities in… (more)

Subjects/Keywords: Drought

…viii Page 10. PRECIPITATION DISTRIBUTION EXTREMES AND DROUGHT ............. 112 a… …Precipitation of Moderate and Extreme Drought Months for COOP Climate Divisions… …i. Durations below the Four Drought Thresholds for COOP Climate Division Data… …averaged values, from the CqY dataset were below specific drought thresholds… …averaged values, from the CqY dataset were below specific drought thresholds…

11 more images…

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APA (6^th Edition):

McRoberts, D. B. (2008). Drought over the past century in Texas and New Mexico: reducing inhomogeneities in long-term climate records via statistical methods to study drought. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/85898

Chicago Manual of Style (16^th Edition):

McRoberts, Douglas Brent. “Drought over the past century in Texas and New Mexico: reducing inhomogeneities in long-term climate records via statistical methods to study drought.” 2008. Masters Thesis, Texas A&M University. Accessed April 19, 2021. http://hdl.handle.net/1969.1/85898.

MLA Handbook (7^th Edition):

McRoberts, Douglas Brent. “Drought over the past century in Texas and New Mexico: reducing inhomogeneities in long-term climate records via statistical methods to study drought.” 2008. Web. 19 Apr 2021.

Vancouver:

McRoberts DB. Drought over the past century in Texas and New Mexico: reducing inhomogeneities in long-term climate records via statistical methods to study drought. [Internet] [Masters thesis]. Texas A&M University; 2008. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/1969.1/85898.

Council of Science Editors:

McRoberts DB. Drought over the past century in Texas and New Mexico: reducing inhomogeneities in long-term climate records via statistical methods to study drought. [Masters Thesis]. Texas A&M University; 2008. Available from: http://hdl.handle.net/1969.1/85898

Anna University

4. Sakthivel B. Drought assessment and fuzzy rule based drought forecasting;.

Degree: Drought assessment and fuzzy rule based drought forecasting, 2015, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/35503

►

Droughts are destructive climatic extreme events those may cause newlinesignificant damage to natural environments and human lives Drought newlinepreparedness can be developed to manage drought… (more)

Subjects/Keywords: civil engineering; Drought assessment; drought forecasting

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APA (6^th Edition):

B, S. (2015). Drought assessment and fuzzy rule based drought forecasting;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/35503

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

B, Sakthivel. “Drought assessment and fuzzy rule based drought forecasting;.” 2015. Thesis, Anna University. Accessed April 19, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/35503.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

B, Sakthivel. “Drought assessment and fuzzy rule based drought forecasting;.” 2015. Web. 19 Apr 2021.

Vancouver:

B S. Drought assessment and fuzzy rule based drought forecasting;. [Internet] [Thesis]. Anna University; 2015. [cited 2021 Apr 19]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/35503.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

B S. Drought assessment and fuzzy rule based drought forecasting;. [Thesis]. Anna University; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/35503

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

5. Maeda, Murilo Minekawa 1985-. Advanced Analysis of the Responses of Cotton Genotypes Growing Under Water Stress.

Degree: MS, Agronomy, 2012, Texas A&M University

URL: http://hdl.handle.net/1969.1/148205

► The ever-growing world population raises the concern and necessity of rational use and distribution of limited water resources. Water deficit is the single most dominant… (more)

▼ The ever-growing world population raises the concern and necessity of rational use and distribution of limited water resources. Water deficit is the single most dominant abiotic factor limiting cotton (Gossypium hirsutum L.) yield in drought-prone Texas croplands. Characterizing plant traits conferring drought tolerance to cotton genotypes and then transferring this information back to breeders and geneticists have the potential of significantly increasing and stabilizing production statewide. Although a plethora of physiological studies have been conducted and have demonstrated that drought tolerance in plants is likely to be conferred by a combination of plant traits rather than a single trait, this knowledge has not translated into improved breeding lines. Experiments were conducted in 2010 and 2011 in the Drought Tolerance Laboratory (Texas AgriLife Research and Extension Center in Corpus Christi, TX) to analyze the responses of cotton genotypes to different levels of water stress. This facility is equipped with computerized systems capable of continuously monitoring whole-plant water use as well as several environmental parameters. Sixteen cotton genotypes were provided by Monsanto Co. and the Texas AgriLife Cotton Improvement Programs at College Station and Lubbock. Seeds were pre-germinated in wet paper towels and then hand planted in large pots previously filled with fritted clay. A total of 3 and 8 (2010 and 2011, respectively) pots containing plants of each genotype were permanently placed on micro-lysimeters for continuous measurement of water use. Water regimes were imposed in 2010 (well-watered and water-stressed), and 2011 (water-stressed) when plants reached the early-flowering stage and were carried until plants reached maturity (100% open bolls). Data collected showed that genotypes have very distinct water use patterns. The water stress treatment imposed on the test plants negatively affected plant growth that was indicated by a lower plant height, total number of leaves, and main-stem nodes of stressed plants when contrasted to their well-watered counterparts. Stomatal density was remarkably different among genotypes and a higher density was found on the abaxial (lower) leaf surface for all genotypes studied. Root dry mass production had different responses depending upon the severity of the water stress. Highest root dry mass was observed when plants were exposed to a mild stress and lowest when a more severe water restriction was imposed. Advisors/Committee Members: Fernandez, Carlos J (advisor), Cothren, Joe T (advisor), Searcy, Stephen W (committee member).

Subjects/Keywords: drought responses; water stress; drought; cotton

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APA (6^th Edition):

Maeda, M. M. 1. (2012). Advanced Analysis of the Responses of Cotton Genotypes Growing Under Water Stress. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/148205

Chicago Manual of Style (16^th Edition):

Maeda, Murilo Minekawa 1985-. “Advanced Analysis of the Responses of Cotton Genotypes Growing Under Water Stress.” 2012. Masters Thesis, Texas A&M University. Accessed April 19, 2021. http://hdl.handle.net/1969.1/148205.

MLA Handbook (7^th Edition):

Maeda, Murilo Minekawa 1985-. “Advanced Analysis of the Responses of Cotton Genotypes Growing Under Water Stress.” 2012. Web. 19 Apr 2021.

Vancouver:

Maeda MM1. Advanced Analysis of the Responses of Cotton Genotypes Growing Under Water Stress. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/1969.1/148205.

Council of Science Editors:

Maeda MM1. Advanced Analysis of the Responses of Cotton Genotypes Growing Under Water Stress. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/148205

Texas A&M University

6. McDaniel, Rachel Leah. Crop- and Location-Specific Drought Index for Agricultural Water Management: Development, Evaluation, and Forecasting.

Degree: PhD, Biological and Agricultural Engineering, 2015, Texas A&M University

URL: http://hdl.handle.net/1969.1/155528

► Severe droughts have plagued the United States over the last few years. The 2011 Texas drought, the 2012 U.S. drought, and the current California drought… (more)

▼ Severe droughts have plagued the United States over the last few years. The 2011 Texas drought, the 2012 U.S. drought, and the current California drought have greatly impacted the nation’s economy and agricultural production. Different crops vary in their response to water stress. Despite this, commonly used drought indices, such as the Palmer Drought Severity Index, do not consider crop specific factors. The goal of this project was to create a methodology to produce crop and location specific drought and yield trend forecasts to help agricultural producers make more informed water management decisions. To achieve this, a drought index was developed and analyzed, weather forecasts were used in a hydrology/crop model to predict hydrologic conditions and crop yields, and an example interactive map interface were created to convey this information to water stakeholders. The drought index uses five parameters that affect or are affected by drought. These parameters include precipitation, temperature, cumulative biomass, soil moisture, and transpiration. Soil moisture and temperature are ranked against crop-specific threshold values, while precipitation and cumulative biomass are ranked against location-specific normal values. Transpiration is ranked against the location-specific potential transpiration. A case study was performed in the Upper Colorado River Basin located in West Texas using this drought index. Cotton is the primary crop grown in the watershed and was used in this study. The Soil and Water Assessment Tool (SWAT) was used to estimate the cumulative biomass, soil moisture, and transpiration. A multiple linear regression model was developed for each week of the growing season based on the significant parameters during that stage of the growing season. These models were used to predict yield trends and drought severity. Two week forecasts for each drought parameter, yield trends, and the drought index were generated for 2010 through 2013 by using forecasted precipitation and temperature data as inputs for the hydrologic and crop model. This provided forecasted soil moisture, transpiration, and cumulative biomass production. Parameter rankings, yield trends, and the drought index were compared for those calculated with actual precipitation and temperature data as well as forecasted precipitation and temperature data. The precipitation ranking, temperature ranking, cumulative biomass ranking, transpiration ranking, estimated yield trends, and drought index indicated satisfactory forecast results. The soil moisture forecast did not result in satisfactory forecast. The final step in the project was to create an example interface for agricultural producers and water managers to view drought related stresses. ArcGIS online was used to create maps which show graphs of the weekly drought index and soil moisture ranking. Maps were created at the county scale. These maps provide agricultural producers readily accessible information that can be used for decision making related to water management. Advisors/Committee Members: Munster, Clyde (advisor), Nielsen-Gammon, John (committee member), Smith, Patricia (committee member), Smith, Wayne (committee member).

Subjects/Keywords: Drought; Forecasting; SWAT model; Agricultural Drought; Cotton

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APA (6^th Edition):

McDaniel, R. L. (2015). Crop- and Location-Specific Drought Index for Agricultural Water Management: Development, Evaluation, and Forecasting. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/155528

Chicago Manual of Style (16^th Edition):

McDaniel, Rachel Leah. “Crop- and Location-Specific Drought Index for Agricultural Water Management: Development, Evaluation, and Forecasting.” 2015. Doctoral Dissertation, Texas A&M University. Accessed April 19, 2021. http://hdl.handle.net/1969.1/155528.

MLA Handbook (7^th Edition):

McDaniel, Rachel Leah. “Crop- and Location-Specific Drought Index for Agricultural Water Management: Development, Evaluation, and Forecasting.” 2015. Web. 19 Apr 2021.

Vancouver:

McDaniel RL. Crop- and Location-Specific Drought Index for Agricultural Water Management: Development, Evaluation, and Forecasting. [Internet] [Doctoral dissertation]. Texas A&M University; 2015. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/1969.1/155528.

Council of Science Editors:

McDaniel RL. Crop- and Location-Specific Drought Index for Agricultural Water Management: Development, Evaluation, and Forecasting. [Doctoral Dissertation]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/155528

University of Zambia

7. Mooya, Dennis. Evaluation of water use for drought tolerance in Maize (Zea Mays L) Genotypes under deficit irrigation .

Degree: 2015, University of Zambia

URL: http://hdl.handle.net/123456789/3690

► The problem of drought and erratic rainfall, coupled with crop genotypes (both local and improved varieties) with low water utilisation efficiencies, are major contributors to… (more)

▼ The problem of drought and erratic rainfall, coupled with crop genotypes (both local and improved varieties) with low water utilisation efficiencies, are major contributors to low productivity of most crops. The poor agricultural productivity among the farming community results in poverty and food insecurity at national level and in low household incomes. Selection of drought adapted genotypes in breeding programmes and efficient use of water are among the most important approaches in combating climate change effects like droughts and erratic rainfall. This study was conducted to characterise drought tolerance of twelve maize genotypes. An experiment was set up at the National Irrigation Research Station in Mazabuka, to determine the response of these genotypes to three water regimes at 30 %, 60 % and 100 % of crop water requirement (ETc). The twelve maize genotypes were planted at each water regime in a split – plot design arranged in a randomized layout. To evaluate the water utilisation of each maize genotype, water use efficiency, crop water productivity, crop yield response factor and harvest index were determined from the grain yield, above ground biomass and data collected during the experiment. Deficit irrigation (30 % and 60 % ETc) resulted in crop yield reduction and significant effects on most of the measured parameters. Anthesis – silking interval was shortened, plant girth and height equally decreased with increased water stress at 30 % of ETc. The results showed variations in maize yield and this was attributed to genotype and water regime. The genotypes and water regimes contributed to yield by 30 % and 50.2 %, respectively. The grain yield in genotypes L512, L353, L857 and L07 had a yield advantage of 36.8 %, 34.6 %, 27.6 % and 18.0 %, respectively above the overall mean. Water Use Efficiency (WUE) at 30 % water regime was high in maize genotypes L512, L60, L713 and L857 with 2.412, 1.818, 1.900 and 2.265 kg/mm/ha, respectively. The Crop Yield Response Factor of genotypes L353, L512, L07 and L857 at 60 % water regime were below 1.0 indicating an efficient water use by most genotypes at 60 % water regime which resulted in a seasonal accumulative value of 505.3 mm for the season under study. Based on the results, genotypes L512, L857, L07 and L353, were selected as drought tolerant genotypes.

Subjects/Keywords: Corn-Drought tolerance

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APA (6^th Edition):

Mooya, D. (2015). Evaluation of water use for drought tolerance in Maize (Zea Mays L) Genotypes under deficit irrigation . (Thesis). University of Zambia. Retrieved from http://hdl.handle.net/123456789/3690

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mooya, Dennis. “Evaluation of water use for drought tolerance in Maize (Zea Mays L) Genotypes under deficit irrigation .” 2015. Thesis, University of Zambia. Accessed April 19, 2021. http://hdl.handle.net/123456789/3690.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mooya, Dennis. “Evaluation of water use for drought tolerance in Maize (Zea Mays L) Genotypes under deficit irrigation .” 2015. Web. 19 Apr 2021.

Vancouver:

Mooya D. Evaluation of water use for drought tolerance in Maize (Zea Mays L) Genotypes under deficit irrigation . [Internet] [Thesis]. University of Zambia; 2015. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/123456789/3690.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mooya D. Evaluation of water use for drought tolerance in Maize (Zea Mays L) Genotypes under deficit irrigation . [Thesis]. University of Zambia; 2015. Available from: http://hdl.handle.net/123456789/3690

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University

8. Haig, Heather A. Diatom-Inferred Changes in Effective Moisture From Gall Lake, Northwestern, Ontario, Over the Past Two Millennia .

Degree: Biology, 2011, Queens University

URL: http://hdl.handle.net/1974/6542

► The boreal forest of Canada extends across 58% of Canada’s land area providing a large range of ecosystem services including flood control, water filtration, and… (more)

▼ The boreal forest of Canada extends across 58% of Canada’s land area providing a large range of ecosystem services including flood control, water filtration, and carbon storage. Despite conservation efforts to protect this ecosystem, the boreal region is still under stress from global stressors including climate change. Anthropogenic climate-change is expected to raise temperatures and decrease precipitation over much of the boreal region increasing the duration and magnitude of droughts. This potential change to a more arid climate could have drastic affects on water levels and stream flows across much of the boreal region. Changes in hydrology, as a consequence of anthropogenic climate change, may result in large changes to aquatic ecosystems. To assess the susceptibility of lakes to climate in northwestern Ontario over the past two millennia, sediment cores from a headwater lake were obtained from near-shore cores to reconstruct changes in drought. The cores were located at a depth where changes in pelagic and benthic diatom assemblages (P: B boundary) were apparent in modern-day sediments because the location has been shown to be susceptible to change. The lake chosen for reconstruction was Gall Lake, a small (surface area = 9 ha, max depth = 18 m, mean depth = 8.5 m), mesotrophic lake (total phosphorus (TP) level of 12.3 μg/L, July 2008), with a gentlysloping eastern basin. This headwater lake in the Winnipeg River Drainage Basin (WRDB) is part of a hydrologically-rich region that is expected to experience increased aridity. Multivariate analysis of diatom assemblages over the past two millennia suggested that the instrumental record does not encompassed the natural variability of this system. The largest decreases in diatom-inferred (DI) depth were synonymous with iii the Medieval Climate Anomaly (MCA), a phenomenon not yet observed this far northeast in North America. The MCA has been proposed as a surrogate for climate change over the next century, therefore the prolonged aridity observed in Gall Lake could aid in the calibration of general circulation models currently used to forecast changes in climate, as well as a scenario that can be used to develop adaptation strategies to future environmental change.

Subjects/Keywords: Drought ; Paleolimnology ; Diatom

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APA (6^th Edition):

Haig, H. A. (2011). Diatom-Inferred Changes in Effective Moisture From Gall Lake, Northwestern, Ontario, Over the Past Two Millennia . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/6542

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Haig, Heather A. “Diatom-Inferred Changes in Effective Moisture From Gall Lake, Northwestern, Ontario, Over the Past Two Millennia .” 2011. Thesis, Queens University. Accessed April 19, 2021. http://hdl.handle.net/1974/6542.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Haig, Heather A. “Diatom-Inferred Changes in Effective Moisture From Gall Lake, Northwestern, Ontario, Over the Past Two Millennia .” 2011. Web. 19 Apr 2021.

Vancouver:

Haig HA. Diatom-Inferred Changes in Effective Moisture From Gall Lake, Northwestern, Ontario, Over the Past Two Millennia . [Internet] [Thesis]. Queens University; 2011. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/1974/6542.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Haig HA. Diatom-Inferred Changes in Effective Moisture From Gall Lake, Northwestern, Ontario, Over the Past Two Millennia . [Thesis]. Queens University; 2011. Available from: http://hdl.handle.net/1974/6542

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Nairobi

9. Waweru, John K. Influence of drought mitigation strategies on food security: a case of laikipia east, laikipia county, kenya.

Degree: 2016, University of Nairobi

URL: http://hdl.handle.net/11295/97279

► Achieving food security in the Kenyan ASALs during drought is a constant challenge that begs for action. Reactive crisis approach to drought-risk management have over… (more)

▼ Achieving food security in the Kenyan ASALs during drought is a constant challenge that begs for action. Reactive crisis approach to drought-risk management have over time been ineffective and poorly coordinated leading vulnerability of households to food insecurity despite development and implementation of drought risk mitigation strategies under HFA 2005-2015. This study sought to establish how drought mitigation strategies influence household food security in Laikipia East sub-County, Laikipia County, Kenya. The specific objectives looked at how drought preparedness, drought response activities and drought reconstruction activities after drought influence household food security. The study used descriptive research design. The population targeted was agro-pastoral households in Laikipia East Sub-county. Five sub-areas were purposively selected for the study. A sample was selected by use of Krejcie and Morgan table for determining sample size and sample of 242 households was selected from a target population of 649 households. Data was collected by use of questionnaires administered in the field to randomly selected households and eight key informants making a total of 250 respondents. However received filled questionnaires from the households, 219 were considered complete and reflective of study objectives. Data was analyzed by use of Statistical Package for Social Scientists and Microsoft Excel and presented using tables and subsequently interpreted. The findings of the study were that drought mitigation strategies influenced household food security but they were poorly coordinated, late, and insufficient and also lacked sufficient funding. The study also found out that household participation was low in implementation. The study recommends more capacity building on drought mitigation strategies, timely planning for drought to ensure coordinated response to drought especially in human and livestock relief projects. Finally the study recommends involvement of technical field officials and local leaders as they are better placed to identify working strategies and rightful targeting.

Subjects/Keywords: Drought Mitigation Strategies

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APA (6^th Edition):

Waweru, J. K. (2016). Influence of drought mitigation strategies on food security: a case of laikipia east, laikipia county, kenya. (Thesis). University of Nairobi. Retrieved from http://hdl.handle.net/11295/97279

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Waweru, John K. “Influence of drought mitigation strategies on food security: a case of laikipia east, laikipia county, kenya. ” 2016. Thesis, University of Nairobi. Accessed April 19, 2021. http://hdl.handle.net/11295/97279.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Waweru, John K. “Influence of drought mitigation strategies on food security: a case of laikipia east, laikipia county, kenya. ” 2016. Web. 19 Apr 2021.

Vancouver:

Waweru JK. Influence of drought mitigation strategies on food security: a case of laikipia east, laikipia county, kenya. [Internet] [Thesis]. University of Nairobi; 2016. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/11295/97279.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Waweru JK. Influence of drought mitigation strategies on food security: a case of laikipia east, laikipia county, kenya. [Thesis]. University of Nairobi; 2016. Available from: http://hdl.handle.net/11295/97279

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

10. CHIPATU, LILLIAN. Environmental learning for coping with drought among small scale farmers of Luangwa district,Zambia.

Degree: 2017, University of Zimbabwe

URL: http://dspace.unza.zm/handle/123456789/5477

► Luangwa District in Zambia’s Lusaka province lies within a marginal area that is prone to both drought and floods in the rainy season (Luangwa District… (more)

▼ Luangwa District in Zambia’s Lusaka province lies within a marginal area that is prone to both drought and floods in the rainy season (Luangwa District Council, 2007). Despite small scale farmers of Luangwa District employing various drought coping strategies, drought and floods continue to adversely affect them in terms of food security and the general livelihood of the population (Kaminsa, 2008). Although environmental learning for coping with drought among small scale farmers has not been studied or explored, some scholars have explained the role that environmental learning plays in coping with environmental hazards (Goulder, 1999; Holdren, 1990). The aim of the study was to examine environmental learning of coping with drought among small scale farmers of Zambia’s Luangwa District so as to determine its approapriateness. To achieve this aim, the study established drought coping strategies among small scale farmers of Zambia’s Luangwa district. Having done this, an examination of environmental learning related to such drought coping strategies was done. The study was a critical realist case study within a setting of qualitative methodologies. A semi structured interview guide was used on disaster management officers, agriculture supervisor, town planner and extension officer, while a focus group discussion was conducted among the small scale farmers. Observations of farming activities on small holdings were also done. The study established that small scale farmers of Luangwa District mainly employed traditional drought coping strategies. Furthermore, the study findings revealed that environmental learning among small scale farmers was on general farming practices and not specifically on drought coping. Thus the study findings confirmed literature assertion that there was superficial environmental learning among small scale farmers. Finally, the study comes up with a proposed environmental learning programme for drought coping which may potentially be useful in addressing drought coping challenges among the small scale farmers of Luangwa District. Thus a major recommendation is for the Ministry of Agriculture and other stakeholders to introduce environmental learning for drought coping among small scale farmers.Further, the government of the republic of Zambia needs to allocate more funds to extension service.

Subjects/Keywords: Drought – Luangwa – Zambia

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APA (6^th Edition):

CHIPATU, L. (2017). Environmental learning for coping with drought among small scale farmers of Luangwa district,Zambia. (Thesis). University of Zimbabwe. Retrieved from http://dspace.unza.zm/handle/123456789/5477

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

CHIPATU, LILLIAN. “Environmental learning for coping with drought among small scale farmers of Luangwa district,Zambia.” 2017. Thesis, University of Zimbabwe. Accessed April 19, 2021. http://dspace.unza.zm/handle/123456789/5477.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

CHIPATU, LILLIAN. “Environmental learning for coping with drought among small scale farmers of Luangwa district,Zambia.” 2017. Web. 19 Apr 2021.

Vancouver:

CHIPATU L. Environmental learning for coping with drought among small scale farmers of Luangwa district,Zambia. [Internet] [Thesis]. University of Zimbabwe; 2017. [cited 2021 Apr 19]. Available from: http://dspace.unza.zm/handle/123456789/5477.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

CHIPATU L. Environmental learning for coping with drought among small scale farmers of Luangwa district,Zambia. [Thesis]. University of Zimbabwe; 2017. Available from: http://dspace.unza.zm/handle/123456789/5477

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Ghana

11. Ouedraogo, N. Genetic Improvement of Local Sorghum (Sorghum Bicolor L. Moench) Varieties for Drought Tolerance .

Degree: 2015, University of Ghana

URL: http://ugspace.ug.edu.gh/handle/123456789/8633

► Drought is the major abiotic factor limiting crop production worldwide. Sorghum is one of the most drought tolerant grain crops that have the ability of… (more)

▼ Drought is the major abiotic factor limiting crop production worldwide. Sorghum is one of the most drought tolerant grain crops that have the ability of addressing food insecurity in semi-arid areas. However, it is exposed recurrently to severe forms of drought and, therefore, requires improvement to cope with moisture stress. The present investigation was undertaken to improve local sorghum varieties for drought tolerance in Burkina Faso. A participatory Rural Appraisal was conducted to identify farmers’ constraints and to determine their preferred sorghum varieties. One hundred and ten accessions, including improved and introduced materials, were assessed in full irrigated and terminal drought conditions in an alpha lattice design to identify drought tolerant and high yielding genotypes. A molecular characterization using 26 SSRs markers was conducted with the same accessions to determine the genetic diversity, genetic differentiation and the level of homozygosity of these accessions. Finally, marker-assisted backcrossing was carried out to introgress stay-green QTLs into four farmers’ preferred varieties. The major constraint limiting sorghum production in Burkina Faso was Striga, a parasiticweed. Drought was the second most important factor reducing sorghum yield and the most important abiotic constraint. The study revealed that terminal moisture stress was the most frequent type of drought but has less effect on yield than pre-flowering drought. Forty seven per cent of farmers rely preferentially on their local landraces. A few preferred improved varieties derived from local landraces, over high yielding exotic (introduced) varieties. Among released varieties, farmers grew more Kapelga in all different climatic zones of the country. There was a strong correlation between grain filling rates, yield under stress, grain number, Stress Tolerance Index (STI) and Geometric Mean Productivity (GMP). This indicates that improvement can be achieved using accessions with high STI and GMP indices. Classification based on yield and its components, divided accessions into three main groups. Grinkan was the highest yielding and most drought tolerant genotype in the study. A group of high yielding and drought susceptible accessions were identified including local improved varieties and landraces that performed well under non-stressed conditions and were susceptible to terminal drought. Low yielding and drought tolerant accessions were also identified. Genotypes with high STI indices could be used by farmers to ensure optimal production in drought prone areas and in breeding programs. There was low gene diversity of 0.34 compared to previous molecular studies in Burkina Faso. The Fixation index (Fst) value exhibited low genetic differentiation among populations and moderate genetic differentiation between local population and exotic materials. The local accessions have a high level of homozygosity. Five stay-green QTLs (Stg1, Stg2, Stg3, Stg4 and StgB) were incorporated into four recurrent (Kapelga, Sariaso09,… Advisors/Committee Members: Sanou, J (advisor), Danquah, E. Y (advisor), Tongoona, P (advisor), Vernon, G (advisor).

Subjects/Keywords: Genetic; Sorghum; Drought

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APA (6^th Edition):

Ouedraogo, N. (2015). Genetic Improvement of Local Sorghum (Sorghum Bicolor L. Moench) Varieties for Drought Tolerance . (Doctoral Dissertation). University of Ghana. Retrieved from http://ugspace.ug.edu.gh/handle/123456789/8633

Chicago Manual of Style (16^th Edition):

Ouedraogo, N. “Genetic Improvement of Local Sorghum (Sorghum Bicolor L. Moench) Varieties for Drought Tolerance .” 2015. Doctoral Dissertation, University of Ghana. Accessed April 19, 2021. http://ugspace.ug.edu.gh/handle/123456789/8633.

MLA Handbook (7^th Edition):

Ouedraogo, N. “Genetic Improvement of Local Sorghum (Sorghum Bicolor L. Moench) Varieties for Drought Tolerance .” 2015. Web. 19 Apr 2021.

Vancouver:

Ouedraogo N. Genetic Improvement of Local Sorghum (Sorghum Bicolor L. Moench) Varieties for Drought Tolerance . [Internet] [Doctoral dissertation]. University of Ghana; 2015. [cited 2021 Apr 19]. Available from: http://ugspace.ug.edu.gh/handle/123456789/8633.

Council of Science Editors:

Ouedraogo N. Genetic Improvement of Local Sorghum (Sorghum Bicolor L. Moench) Varieties for Drought Tolerance . [Doctoral Dissertation]. University of Ghana; 2015. Available from: http://ugspace.ug.edu.gh/handle/123456789/8633

University of Illinois – Urbana-Champaign

12. Kurczewski, Adam Joseph. Aspirations, drought, and the perception of weather: How are future goals affected by severe rainfall shocks?.

Degree: MS, Agricultural & Applied Econ, 2020, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/108523

► Individuals’ aspirations are receiving more attention in development economics as their role in decision making, future expectations, and well-being are recognized. High aspirational targets set… (more)

Subjects/Keywords: aspirations; perceptions; drought

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APA (6^th Edition):

Kurczewski, A. J. (2020). Aspirations, drought, and the perception of weather: How are future goals affected by severe rainfall shocks?. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/108523

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kurczewski, Adam Joseph. “Aspirations, drought, and the perception of weather: How are future goals affected by severe rainfall shocks?.” 2020. Thesis, University of Illinois – Urbana-Champaign. Accessed April 19, 2021. http://hdl.handle.net/2142/108523.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kurczewski, Adam Joseph. “Aspirations, drought, and the perception of weather: How are future goals affected by severe rainfall shocks?.” 2020. Web. 19 Apr 2021.

Vancouver:

Kurczewski AJ. Aspirations, drought, and the perception of weather: How are future goals affected by severe rainfall shocks?. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2020. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/2142/108523.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kurczewski AJ. Aspirations, drought, and the perception of weather: How are future goals affected by severe rainfall shocks?. [Thesis]. University of Illinois – Urbana-Champaign; 2020. Available from: http://hdl.handle.net/2142/108523

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

California State University – Chico

13. Sidhu, Gaurav. Drought causes limited productivity of maize: drought tolerant corn hybrid .

Degree: 2012, California State University – Chico

URL: http://hdl.handle.net/10211.4/452

► Due to drought stress, there is a significant amount of loss in corn yield caused by weather changes such as rising temperatures and the decrease… (more)

Subjects/Keywords: Drought; Corn; Hybrids

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APA (6^th Edition):

Sidhu, G. (2012). Drought causes limited productivity of maize: drought tolerant corn hybrid . (Thesis). California State University – Chico. Retrieved from http://hdl.handle.net/10211.4/452

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sidhu, Gaurav. “Drought causes limited productivity of maize: drought tolerant corn hybrid .” 2012. Thesis, California State University – Chico. Accessed April 19, 2021. http://hdl.handle.net/10211.4/452.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sidhu, Gaurav. “Drought causes limited productivity of maize: drought tolerant corn hybrid .” 2012. Web. 19 Apr 2021.

Vancouver:

Sidhu G. Drought causes limited productivity of maize: drought tolerant corn hybrid . [Internet] [Thesis]. California State University – Chico; 2012. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/10211.4/452.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sidhu G. Drought causes limited productivity of maize: drought tolerant corn hybrid . [Thesis]. California State University – Chico; 2012. Available from: http://hdl.handle.net/10211.4/452

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology

14. Weijers, Rutger (author). Drought indicators in The Netherlands: a case study to support anticipative drought management.

Degree: 2020, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:3c915a71-95ee-462d-99fc-eaa2fd167765

► In 2018 The Netherlands experienced the most severe drought since 1976. In response to this, the Minister of Infrastructure and Water Management established the 'Beleidstafel… (more)

Subjects/Keywords: drought; drought indicators; anticipative drought management; case study

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APA (6^th Edition):

Weijers, R. (. (2020). Drought indicators in The Netherlands: a case study to support anticipative drought management. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:3c915a71-95ee-462d-99fc-eaa2fd167765

Chicago Manual of Style (16^th Edition):

Weijers, Rutger (author). “Drought indicators in The Netherlands: a case study to support anticipative drought management.” 2020. Masters Thesis, Delft University of Technology. Accessed April 19, 2021. http://resolver.tudelft.nl/uuid:3c915a71-95ee-462d-99fc-eaa2fd167765.

MLA Handbook (7^th Edition):

Weijers, Rutger (author). “Drought indicators in The Netherlands: a case study to support anticipative drought management.” 2020. Web. 19 Apr 2021.

Vancouver:

Weijers R(. Drought indicators in The Netherlands: a case study to support anticipative drought management. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Apr 19]. Available from: http://resolver.tudelft.nl/uuid:3c915a71-95ee-462d-99fc-eaa2fd167765.

Council of Science Editors:

Weijers R(. Drought indicators in The Netherlands: a case study to support anticipative drought management. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:3c915a71-95ee-462d-99fc-eaa2fd167765

15. Qiu, Shaoyue. Improving The Palmer Drought Severity Index By Incorporating Snow And Frozen Ground.

Degree: MS, Atmospheric Sciences, 2013, University of North Dakota

URL: https://commons.und.edu/theses/1470

► Drought causes extensive damage and affects a significant number of people. To quantify the severity of drought and to better monitor drought, drought indices… (more)

▼ Drought causes extensive damage and affects a significant number of people. To quantify the severity of drought and to better monitor drought, drought indices are necessary. The Palmer Drought Severity Index (PDSI) has its advantages of comprehensive and taking the characteristics of drought into concern so that it was regarded as the milestone in the revolution of drought indices (Heim, 2002). The PDSI has been widely used, tested, and modified since its development in 1965. However, a commonly documented limitation to this index is the lack of consideration for snow and the treatment of ground status. In this study, a simplified snow model is included in the self-calibrated PDSI model, which is run in a monthly time step over the continental United States (CONUS) for the past 32 years (1979 - 2010). In the modified PDSI model, the form of precipitation is based on an air temperature threshold and moisture has been withheld and redistributed into the system based on the accumulation and melt of snow. With the snow processes included, all the model variables (evapotranspiration, soil moisture recharge/loss, surface runoff) decreased in winter and increased in spring melt time and soil moisture remained the same in winter and got recharged in spring, the difference between the soil moisture in the original PDSI model without snow effect and the soil moisture in the PDSI model with snow effect is small. The climatically appropriate precipitation increased more than 200% in northern latitude and mountain regions in spring melt seasons. The absolute value of moisture departure also decreased in winter and increased in summer, which means the inclusion of snow processes made the moisture departure increase during wet condition and decrease for dry condition (varies more). Inclusion of the snow model also allows the PDSI to better capture spring flooding events, which are caused by snowmelt; monitoring drought events also has been improved due to the changes in duration factor for the modified model with snow processes. Finally, the general moisture conditions as well as the trend of moisture change have been examined using both the original model and the modified model including snow. Both models show similar characteristics over the CONUS for the past three decades. The inclusion of the snow model does not qualitatively change these results, and has little effect on the spatial comparability of the index. Effect of frozen soil has also been examined. In this study, this effect is simply tested by shutting down infiltration when ground is frozen. Due to the time lag between ground status and air temperature (which is the determinant for the calculated snowmelt rate), and also the different spatial resolution for these two data sets, most of the spring snowmelt in western US, especially the northern Rocky Mountain regions didn't infiltrate the soil system and became surface runoff. This loss of moisture caused the soil moisture in those regions decreased from a climate mean 35cm to… Advisors/Committee Members: Xiquan Dong.

Subjects/Keywords: Drought; Drought Indices; Palmer Drought Severity Index; Snow processes

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Qiu, S. (2013). Improving The Palmer Drought Severity Index By Incorporating Snow And Frozen Ground. (Masters Thesis). University of North Dakota. Retrieved from https://commons.und.edu/theses/1470

Chicago Manual of Style (16^th Edition):

Qiu, Shaoyue. “Improving The Palmer Drought Severity Index By Incorporating Snow And Frozen Ground.” 2013. Masters Thesis, University of North Dakota. Accessed April 19, 2021. https://commons.und.edu/theses/1470.

MLA Handbook (7^th Edition):

Qiu, Shaoyue. “Improving The Palmer Drought Severity Index By Incorporating Snow And Frozen Ground.” 2013. Web. 19 Apr 2021.

Vancouver:

Qiu S. Improving The Palmer Drought Severity Index By Incorporating Snow And Frozen Ground. [Internet] [Masters thesis]. University of North Dakota; 2013. [cited 2021 Apr 19]. Available from: https://commons.und.edu/theses/1470.

Council of Science Editors:

Qiu S. Improving The Palmer Drought Severity Index By Incorporating Snow And Frozen Ground. [Masters Thesis]. University of North Dakota; 2013. Available from: https://commons.und.edu/theses/1470

University of South Carolina

16. Altman, Ekaterina Negodyaeva. Drought Indices In Decision-Making Process of Drought Management.

Degree: M.E.E.R.M., Earth and Ocean Sciences, 2013, University of South Carolina

URL: https://scholarcommons.sc.edu/etd/2320

► Drought indices are one of the most important elements of an effective drought monitoring and early warning system. They help to characterize drought and… (more)

Subjects/Keywords: Earth Sciences; Physical Sciences and Mathematics; drought; drought index; drought management; South Carolina

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APA (6^th Edition):

Altman, E. N. (2013). Drought Indices In Decision-Making Process of Drought Management. (Masters Thesis). University of South Carolina. Retrieved from https://scholarcommons.sc.edu/etd/2320

Chicago Manual of Style (16^th Edition):

Altman, Ekaterina Negodyaeva. “Drought Indices In Decision-Making Process of Drought Management.” 2013. Masters Thesis, University of South Carolina. Accessed April 19, 2021. https://scholarcommons.sc.edu/etd/2320.

MLA Handbook (7^th Edition):

Altman, Ekaterina Negodyaeva. “Drought Indices In Decision-Making Process of Drought Management.” 2013. Web. 19 Apr 2021.

Vancouver:

Altman EN. Drought Indices In Decision-Making Process of Drought Management. [Internet] [Masters thesis]. University of South Carolina; 2013. [cited 2021 Apr 19]. Available from: https://scholarcommons.sc.edu/etd/2320.

Council of Science Editors:

Altman EN. Drought Indices In Decision-Making Process of Drought Management. [Masters Thesis]. University of South Carolina; 2013. Available from: https://scholarcommons.sc.edu/etd/2320

University of Zambia

17. Neshamba, Mubaiwa Saul. Variability for Drought Tolerance in finger millet[eleusine coracana(L.)]accessions from Zambia .

Degree: 2011, University of Zambia

URL: http://hdl.handle.net/123456789/244

► Finger millet \Eleusine coracana (L.) Gaertn.] is an important traditional food security crop in 2 remote and dry areas of northern Zambia. Its several major… (more)

▼ Finger millet \Eleusine coracana (L.) Gaertn.] is an important traditional food security crop in 2 remote and dry areas of northern Zambia. Its several major uses include porridge, bread, malt, beverages, fodder and popped products. Yields in these areas are severely limited by drought. Drought is expected to occur with increased frequency and intensity in future with climate change. Development of tolerant varieties is a more sustainable way to cope with recurrent drought for small scale growers. Limited research on tolerance to drought in finger millet in Zambia has been done. As a result only a few varieties adapted to the high rainfall region have been developed and promoted. Two hundred and fifteen accessions in the national collection have not been evaluated for the trait. As a result very little is known about their variability in the trait. Assessment of variability is important for effective selection. Variation in 12 putative morphological and agronomic traits of drought tolerance in 203 accessions was studied in a wooden box Randomized Complete Block Design off-season in 2 environments, one with and the other without stress, on an Acrisol in northern Zambia. One sample T-test of differences in attributes of traits showed no significant difference between test environments in grain weight (GW, p = 0.744). The test, however, showed significant differences in spike length (SL,/? = 0.027); highly significant differences in biomass (BW, p < 0.001) and chaff weight (CW,p < 0.001), days to 50 % flowering (DTP,/? < 0.001), pest and disease susceptibility (PDS, p < 0.007), plant height (PH, p < 0.001), number of productive tillers (NPT, p < 0.001), spike weight per plot (SY, p < 0.001) and stay-green characteristic (SGC, p < 0.001). Withholding water for 5 days during flowering reduced SL by 3.4 %, BW by 3.1 %, SGC by , CW by, PDS by 10.5 %, NPT by 40.0 %), and SY by 48.5 % and increased PH and DTP by 3.1 and 4.3 %, respectively. One-way analysis of variance detected significant differences among accessions in SY (p = 0.032) under optimal conditions. The same analysis detected significant differences in number of spikes per panicle (SN,/p = 0.014) and SGC; and highly significant differences in PDS (p = 0.001) under stress. Eighty-three accessions outweighed the best check (FMM 165 = 2.500 + 1.000 kg/plot) in SY under optimal conditions. Accession ZM 3813 had the highest SY (6.450+1.000 kg/plot) and ZM 203 (0.200 + 1.000 kg/plot) the lowest in the environment. Under stress 92 accessions exceeded the best check (Nyika = 5.923 + 1.3825 - same and 1.5457 - different block) in SN. ZM 3825 had the largest attribute (8.706 ± 1.3825, 1.5457) and ZM 193 the smallest (2.631). In SGC 77 accessions were scored better than the best check, FMM 165. ZM 225 (5.222 + 0.7643, 0.8545), ZM 245 (5.222 + 0.7643, 0.8545), and ZM 112 (4.972 ± 0.7643, 0.8545) were scored the best and 37 others the poorest in the trait. And in PDS 31 accessions had better scores than the best check (Senga = 3.000 +₀.0151,…

Subjects/Keywords: Finger Millet – drought tolerance – Zambia

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APA (6^th Edition):

Neshamba, M. S. (2011). Variability for Drought Tolerance in finger millet[eleusine coracana(L.)]accessions from Zambia . (Thesis). University of Zambia. Retrieved from http://hdl.handle.net/123456789/244

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Neshamba, Mubaiwa Saul. “Variability for Drought Tolerance in finger millet[eleusine coracana(L.)]accessions from Zambia .” 2011. Thesis, University of Zambia. Accessed April 19, 2021. http://hdl.handle.net/123456789/244.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Neshamba, Mubaiwa Saul. “Variability for Drought Tolerance in finger millet[eleusine coracana(L.)]accessions from Zambia .” 2011. Web. 19 Apr 2021.

Vancouver:

Neshamba MS. Variability for Drought Tolerance in finger millet[eleusine coracana(L.)]accessions from Zambia . [Internet] [Thesis]. University of Zambia; 2011. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/123456789/244.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Neshamba MS. Variability for Drought Tolerance in finger millet[eleusine coracana(L.)]accessions from Zambia . [Thesis]. University of Zambia; 2011. Available from: http://hdl.handle.net/123456789/244

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Zambia

18. Kamuloso. Human adjustments to the drought hazard : a case study of Gwembe Valley in the Southern Province of Zambia .

Degree: 2011, University of Zambia

URL: http://hdl.handle.net/123456789/666

► This thesis, with its focus on the Gwembe Valley, an area that has a long history of drought conditions in the country and one of… (more)

▼ This thesis, with its focus on the Gwembe Valley, an area that has a long history of drought conditions in the country and one of those that was severely affected during the recent three year running drought (.1981-84) , attempts to find out about peoples' responses and adjustments to the drought hazard in the region. It investigates as well, many aspects relating to drought perception. Specifically, the present study was guided by three broad objectives, which sought to: (i) determine the nature and extent of the drought hazard in the Gwembe Valley, (ii) examine the full range of human adjustments to the drought hazard, (iii) examine and establish a relationship between peoples." perception of the hazard and rainfall periodicity as recorded at the rain gauge stations in the study area. Three main working hypotheses, (from which 41 null hypotheses were formulated and tested using the chi-square test of independence at 0.05 level of significance} were also advanced. These are listed as follows: 1. the awareness of the drought hazard is a function of magnitude, frequency of the hazard, recency and frequency of personal experience. 2. the evaluation and adoption of adjustments to drought by individuals is the function of the perception of the hazard and the perception of the alternatives available. 3. farmers response to drought involves a variety of simple adjustments, which attempt to work more in harmony with nature than human control over nature. In pursuing the study both field and library research were employed. Data from the field was based mainly on an interview schedule survey. This survey was administered to a sample of 180 peasant farmers and the results yielded from it formed the basis of our data analysis, with supple¬mentary information arising from other forms of field inquiry and secondary materials. The key findings of the study include the following: Essentially, the people in the study area hold similar views on the drought hazard and practise a wide range of drought adjustments. They look upon droughts as being generated by external physical forces, frequent in their occurrence, unpredictable in nature and problematic because of their effects on crop production. The drought adjustments practised by the people are simple in character and are deeply rooted in their agricultural and social systems. They include the planting of drought tolerant crops; millet and sorghum, rain making and the selling of livestock. Except for a few, all the adjustments are of an individual centred nature and are widely viewed as being very useful in mitigating drought effects. The chi-square results generally indicate that several factors (e.g. personal drought experience, the frequency of drought occurrence and socio-economic variables were responsible for the high drought awareness amongst the sample population. But contrary to what was anticipated, the chi-square results fail to pin-point the importance of perception variables in the adoption of drought adjustments. The…

Subjects/Keywords: Hazards-Drought – Gwembe valley – Zambia

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APA (6^th Edition):

Kamuloso. (2011). Human adjustments to the drought hazard : a case study of Gwembe Valley in the Southern Province of Zambia . (Thesis). University of Zambia. Retrieved from http://hdl.handle.net/123456789/666

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kamuloso. “Human adjustments to the drought hazard : a case study of Gwembe Valley in the Southern Province of Zambia .” 2011. Thesis, University of Zambia. Accessed April 19, 2021. http://hdl.handle.net/123456789/666.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kamuloso. “Human adjustments to the drought hazard : a case study of Gwembe Valley in the Southern Province of Zambia .” 2011. Web. 19 Apr 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

Kamuloso. Human adjustments to the drought hazard : a case study of Gwembe Valley in the Southern Province of Zambia . [Internet] [Thesis]. University of Zambia; 2011. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/123456789/666.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kamuloso. Human adjustments to the drought hazard : a case study of Gwembe Valley in the Southern Province of Zambia . [Thesis]. University of Zambia; 2011. Available from: http://hdl.handle.net/123456789/666

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

University of Zambia

19. Mwenda, Rabson. An investigation of drought characteristics and assessment of mitigation measures in the Gwembe valley, Zambia .

Degree: 2011, University of Zambia

URL: http://hdl.handle.net/123456789/676

► There has been an increased frequency of drought occurrence in the Gwembe Valley in recent years.The situation, however, has not been addressed adequately due to… (more)

▼ There has been an increased frequency of drought occurrence in the Gwembe Valley in recent years.The situation, however, has not been addressed adequately due to lack of enough research on drought effects, especially the assessment of appropriateness and effectiveness of the mitigation measures that had been recommended and implemented to reduce the impacts. This study was carried out in the Gwembe Valley in the period September, 1999 to February 2000, covering the three districts of the valley namely Siavonga, Gwembe and Sinazongwe.The objectives of the research were: (i) to determine the drought characteristics; (ii) to assess drought impacts on agriculture and water supply and (iii) to determine appropriate measures of reducing drought vulnerability of local communities.Some of the analyzed data was collected from participants who included households of peasant farmers and village headmen. Other data came from civil servants working for the Ministry of Agriculture Food and Fisheries (MAFF), the Ministry of Education (MOE), Department of Meteorology in the Ministry of Transport and Communications and also from the Water Affairs Department of the Ministry of Energy and Water Development and from the Ministry of Health(MOH). Civic leaders included Member of Parliament (M.P.) for Gwembe (who was later appointed Deputy Minister for Southern Province) and District Council officials.Both qualitative and quantitative types of data were collected. Interview, questionnaire and observation methods were used while analysis involved the 'run-methodology' and magnitudefrequency approaches. Results revealed that the droughts were not due to shortfall in expected total amount of rainfall per season alone but that the duration of dry-spells in the rain season and the actual number of rain days per month, contributed. The impacts of the droughts were manifested in crop failure and depleted food stocks. Water scarcity leads to many diseases and livestock deaths. Human reactions like failure to act quickly in the wake of drought signs, cultivation of inappropriate crop and in some instances, sheer laziness by people who depended on receiving free food-aid (especially) were among the accentuating factors to hardships local people faced. The study also suggested that drought occurrence was not random and had increased slightly since 1980, impacting agriculture and water supply more severely.The recommendations to individuals emphasized the need to intensify the current mitigation measures being pursued while government was being urged not to procrastinate in implementing measures suggested to it as this derailed progress. It was observed that triumph in the fight against drought would need establishing a permanent body for drought mitigation and management. This body should be composed of professionals in matters on drought and who should be ready to address the issue whenever it showed signs of re-surfacing. The other contingency measures already adopted such as food aid and use of drought resistant crop varieties were to…

Subjects/Keywords: Drought – Gwembe valley Zambia

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APA (6^th Edition):

Mwenda, R. (2011). An investigation of drought characteristics and assessment of mitigation measures in the Gwembe valley, Zambia . (Thesis). University of Zambia. Retrieved from http://hdl.handle.net/123456789/676

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mwenda, Rabson. “An investigation of drought characteristics and assessment of mitigation measures in the Gwembe valley, Zambia .” 2011. Thesis, University of Zambia. Accessed April 19, 2021. http://hdl.handle.net/123456789/676.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mwenda, Rabson. “An investigation of drought characteristics and assessment of mitigation measures in the Gwembe valley, Zambia .” 2011. Web. 19 Apr 2021.

Vancouver:

Mwenda R. An investigation of drought characteristics and assessment of mitigation measures in the Gwembe valley, Zambia . [Internet] [Thesis]. University of Zambia; 2011. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/123456789/676.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mwenda R. An investigation of drought characteristics and assessment of mitigation measures in the Gwembe valley, Zambia . [Thesis]. University of Zambia; 2011. Available from: http://hdl.handle.net/123456789/676

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Pretoria

20. [No author]. Evaluation and selection of 20 sorghum [Sorghum bicolor (L.) Moench] genotypes for drought tolerance .

Degree: 2010, University of Pretoria

URL: http://upetd.up.ac.za/thesis/available/etd-10222010-125350/

► A field study was conducted at ARC - Grain Crops Institute, Potchefstroom Experimental Farm and at Taung Crop Production Center during 2006/07 summer growing season.… (more)

▼ A field study was conducted at ARC - Grain Crops Institute, Potchefstroom Experimental Farm and at Taung Crop Production Center during 2006/07 summer growing season. Twenty sorghum genotypes were planted in two separate blocks, under full irrigation and rain fed conditions with plot size of 4 rows x 5 m x 0.9 m giving a density of 55 555 plants ha-1. The experiment was laid out in a randomised complete block design replicated three times. The irrigated block received scheduled irrigation from planting until maturity, while the rain fed block received irrigation prior to germination only. Agronomic traits measured were plant height, stem diameter, biomass, flowering date, panicle exertion, panicle length, leaf area, grain yield, and thousand seed mass at Potchefstroom and Taung experiments. Drought susceptibility index (DSI) was quantified using the formula: DSI = [1 - (Ydi/ Ypi)]/ [1 - (YD/YP)] and %yield reduction (%YR) was calculated using the formula: %YR = (Ypi –Ydi)/ Ypi x 100. Significant variations among genotypes with regard to grain yield (GYLD), plant height (PH), panicle length (PL), biomass (BM), stem diameter (SD), panicle exertion (PEx), and 1000 seed mass (TSM) were observed at Potchefstroom under rain fed conditions, while under irrigated conditions significant variations were only observed for GYLD, PH, PL, BM, days to 50% flowering (DF), SD, leaf area (LA), PEx and TSM. At Potchefstroom genotypes varied significantly with regard to PH, PL, BM, DF, SD, LA, PEx and TSM under rain fed conditions, while under irrigated conditions genotypes varied with all traits measured with exception of harvest index (HI) and relative water content (RWC). At Potchefstroom, soil water deficits significantly affected GYLD, PH, HI, PEx and RWC, while at Potchefstroom soil water deficits significantly affected GYLD, PH, SD, LA, PEx, TSM and RWC. Genotypes varied with their level of resistance/ susceptibility to soil water deficits at both Potchefstroom and Taung. Some remarkable correlations among traits measured were observed under rain fed and irrigated conditions and across the treatments at both Potchefstroom and Taung. At Potchefstroom, significant correlation was only observed between drought susceptibility index (DSI) and PH under rain fed conditions, while at Potchefstroom negative and significant correlation was only observed between DSI and GYLD under rain fed conditions. At Potchefstroom, GYLD under rain fed significantly related to GYLD under irrigated conditions and across the treatments. However, GYLD under irrigated conditions significantly related to GYLD across the treatments. At Potchefstroom, GYLD under rain fed conditions significantly correlated with GYLD across soil water regimes, while GYLD under irrigated conditions significantly correlated with GYLD across the treatments. Genotypes that exhibited the combination of high yield potential and resistant traits were recommended. Genotypes that exhibited high resistant traits with low yield potential were recommended for breeders to incorporate those… Advisors/Committee Members: Prof P Soundy (advisor).

Subjects/Keywords: Drought tolerance; Sorghum; UCTD

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APA (6^th Edition):

author], [. (2010). Evaluation and selection of 20 sorghum [Sorghum bicolor (L.) Moench] genotypes for drought tolerance . (Masters Thesis). University of Pretoria. Retrieved from http://upetd.up.ac.za/thesis/available/etd-10222010-125350/

Chicago Manual of Style (16^th Edition):

author], [No. “Evaluation and selection of 20 sorghum [Sorghum bicolor (L.) Moench] genotypes for drought tolerance .” 2010. Masters Thesis, University of Pretoria. Accessed April 19, 2021. http://upetd.up.ac.za/thesis/available/etd-10222010-125350/.

MLA Handbook (7^th Edition):

author], [No. “Evaluation and selection of 20 sorghum [Sorghum bicolor (L.) Moench] genotypes for drought tolerance .” 2010. Web. 19 Apr 2021.

Vancouver:

author] [. Evaluation and selection of 20 sorghum [Sorghum bicolor (L.) Moench] genotypes for drought tolerance . [Internet] [Masters thesis]. University of Pretoria; 2010. [cited 2021 Apr 19]. Available from: http://upetd.up.ac.za/thesis/available/etd-10222010-125350/.

Council of Science Editors:

author] [. Evaluation and selection of 20 sorghum [Sorghum bicolor (L.) Moench] genotypes for drought tolerance . [Masters Thesis]. University of Pretoria; 2010. Available from: http://upetd.up.ac.za/thesis/available/etd-10222010-125350/

Dalhousie University

21. Karunatilleke, Nadun. MITIGATION OF DROUGHT STRESS IN TOMATO WITH ASCOPHYLLUM NODOSUM (L.) LE JOL. EXTRACTS.

Degree: MS, Faculty of Agriculture, 2014, Dalhousie University

URL: http://hdl.handle.net/10222/53945

► Growth and development of a plant can be affected due to various biotic and abiotic stresses such as water, salinity, frost and pathogens. Application of… (more)

Subjects/Keywords: Drought stress; Tomato; Ascophyllum nodosum

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APA (6^th Edition):

Karunatilleke, N. (2014). MITIGATION OF DROUGHT STRESS IN TOMATO WITH ASCOPHYLLUM NODOSUM (L.) LE JOL. EXTRACTS. (Masters Thesis). Dalhousie University. Retrieved from http://hdl.handle.net/10222/53945

Chicago Manual of Style (16^th Edition):

Karunatilleke, Nadun. “MITIGATION OF DROUGHT STRESS IN TOMATO WITH ASCOPHYLLUM NODOSUM (L.) LE JOL. EXTRACTS.” 2014. Masters Thesis, Dalhousie University. Accessed April 19, 2021. http://hdl.handle.net/10222/53945.

MLA Handbook (7^th Edition):

Karunatilleke, Nadun. “MITIGATION OF DROUGHT STRESS IN TOMATO WITH ASCOPHYLLUM NODOSUM (L.) LE JOL. EXTRACTS.” 2014. Web. 19 Apr 2021.

Vancouver:

Karunatilleke N. MITIGATION OF DROUGHT STRESS IN TOMATO WITH ASCOPHYLLUM NODOSUM (L.) LE JOL. EXTRACTS. [Internet] [Masters thesis]. Dalhousie University; 2014. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/10222/53945.

Council of Science Editors:

Karunatilleke N. MITIGATION OF DROUGHT STRESS IN TOMATO WITH ASCOPHYLLUM NODOSUM (L.) LE JOL. EXTRACTS. [Masters Thesis]. Dalhousie University; 2014. Available from: http://hdl.handle.net/10222/53945

University of Alberta

22. Ramadoss, Anupreeti. Effects of drought on Eleusine coracana (L.) Gaertn. (finger millet) and identification of microsatellite markers.

Degree: MS, Department of Biological Sciences, 2014, University of Alberta

URL: https://era.library.ualberta.ca/files/h702q764w

► Finger millet (Eleusine coracana (L.) Gaertn.) is a crop with high nutritional profile cultivated mainly in developing countries. It is an allotetraploid (2n= 4x= 36… (more)

Subjects/Keywords: Drought; SSR Markers; Finger Millet

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APA (6^th Edition):

Ramadoss, A. (2014). Effects of drought on Eleusine coracana (L.) Gaertn. (finger millet) and identification of microsatellite markers. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/h702q764w

Chicago Manual of Style (16^th Edition):

Ramadoss, Anupreeti. “Effects of drought on Eleusine coracana (L.) Gaertn. (finger millet) and identification of microsatellite markers.” 2014. Masters Thesis, University of Alberta. Accessed April 19, 2021. https://era.library.ualberta.ca/files/h702q764w.

MLA Handbook (7^th Edition):

Ramadoss, Anupreeti. “Effects of drought on Eleusine coracana (L.) Gaertn. (finger millet) and identification of microsatellite markers.” 2014. Web. 19 Apr 2021.

Vancouver:

Ramadoss A. Effects of drought on Eleusine coracana (L.) Gaertn. (finger millet) and identification of microsatellite markers. [Internet] [Masters thesis]. University of Alberta; 2014. [cited 2021 Apr 19]. Available from: https://era.library.ualberta.ca/files/h702q764w.

Council of Science Editors:

Ramadoss A. Effects of drought on Eleusine coracana (L.) Gaertn. (finger millet) and identification of microsatellite markers. [Masters Thesis]. University of Alberta; 2014. Available from: https://era.library.ualberta.ca/files/h702q764w

University of Tasmania

23. Styger, JK. Predicting fire in rainforest.

Degree: 2014, University of Tasmania

URL: https://eprints.utas.edu.au/22384/1/front-Styger-thesis-2014.pdf ; https://eprints.utas.edu.au/22384/2/whole-Styger-thesis-2014.pdf

► Cool-temperate rainforest occurs widely within south-west and western Tasmania, where it occurs interspersed with buttongrass moorlands. Rainforest is considered to be a climax vegetation, capable… (more)

▼ Cool-temperate rainforest occurs widely within south-west and western Tasmania, where it occurs interspersed with buttongrass moorlands. Rainforest is considered to be a climax vegetation, capable of regenerating in the absence of a major disturbance event, such as fire. Rainforest is also considered to be a fire sensitive community, as many rainforest species are incapable of surviving a fire event. Although fire in rainforest is rare, large rainforest fires have occurred in the past. These fire events are likely to increase with future climate change, which may result in a substantial loss of rainforest communities. It is important to understand the conditions under which fire will sustain and spread within rainforest as this will aid in protective measures, such as hazard-reduction burning, and the allocation of resources during a wildfire. In this study, I ask, under what conditions it would be likely that a fire would sustain and spread within rainforest. In order to do this the flammability and microclimate of a callidendrous rainforest, implicate rainforest and deciduous beech montane rainforest were characterised. The canopy structure and rainfall distribution of the callidendrous rainforest were also examined. There was very little difference in the flammability of live leaf and litter components between the three rainforest communities and adjacent fire tolerant communities, with the exception of the bark component from a Eucalyptus coccifera woodland. Callidendrous and implicate rainforests were cooler, more humid and less windy than adjacent open areas. There was very little difference in temperature and vapour pressure deficit between the deciduous beech forest and the adjacent open area. The distribution of rainfall within a callidendrous rainforest was found to be heterogeneous. Two millimetres of rain was required to saturate the rainforest canopy. On average, 20% of rainfall was intercepted. The Soil Dryness Index (SDI) is a tool used by fire managers to provide an indication of drought conditions and is also a component of the McArthur Forest Fire Danger Index (FFDI) in Tasmania. Many fire managers believe that the SDI does not perform effectively in south-west and western Tasmania. As a result, the performance of the SDI was looked at in this region, by examining the canopy intercept factor used to calculate rainforest and the relative performance of the SDI between mineral and organic soils. It was found that the canopy intercept factor designated for rainforest within the SDI performed well, and the SDI for rainforest could not be improved by using the canopy intercept rule determined for callidendrous rainforest earlier in this study. It was also found that there was no difference in the way the SDI performed between mineral and organic soils. It was therefore thought that the observed poor performance of the SDI in south-west and western Tasmania is likely to be the result of a poor representation of weather stations in a topographically complex environment. Twelve historical fires that…

Subjects/Keywords: Tasmania; rainforest; fire; microclimate; drought

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APA (6^th Edition):

Styger, J. (2014). Predicting fire in rainforest. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/22384/1/front-Styger-thesis-2014.pdf ; https://eprints.utas.edu.au/22384/2/whole-Styger-thesis-2014.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Styger, JK. “Predicting fire in rainforest.” 2014. Thesis, University of Tasmania. Accessed April 19, 2021. https://eprints.utas.edu.au/22384/1/front-Styger-thesis-2014.pdf ; https://eprints.utas.edu.au/22384/2/whole-Styger-thesis-2014.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Styger, JK. “Predicting fire in rainforest.” 2014. Web. 19 Apr 2021.

Vancouver:

Styger J. Predicting fire in rainforest. [Internet] [Thesis]. University of Tasmania; 2014. [cited 2021 Apr 19]. Available from: https://eprints.utas.edu.au/22384/1/front-Styger-thesis-2014.pdf ; https://eprints.utas.edu.au/22384/2/whole-Styger-thesis-2014.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Styger J. Predicting fire in rainforest. [Thesis]. University of Tasmania; 2014. Available from: https://eprints.utas.edu.au/22384/1/front-Styger-thesis-2014.pdf ; https://eprints.utas.edu.au/22384/2/whole-Styger-thesis-2014.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Cornell University

24. Byerly, Hilary. Spatial Patterns Of Drought Vulnerability In Rice-Producing Districts Of India.

Degree: M.S., Agricultural Economics, Agricultural Economics, 2015, Cornell University

URL: http://hdl.handle.net/1813/40638

► Climate variability is perhaps the greatest challenge facing the smallholder farmer. Abnormal temperatures and inconsistent rainfall can destroy a season's harvest despite optimal farm management… (more)

Subjects/Keywords: spatial analysis; drought; India

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APA (6^th Edition):

Byerly, H. (2015). Spatial Patterns Of Drought Vulnerability In Rice-Producing Districts Of India. (Masters Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/40638

Chicago Manual of Style (16^th Edition):

Byerly, Hilary. “Spatial Patterns Of Drought Vulnerability In Rice-Producing Districts Of India.” 2015. Masters Thesis, Cornell University. Accessed April 19, 2021. http://hdl.handle.net/1813/40638.

MLA Handbook (7^th Edition):

Byerly, Hilary. “Spatial Patterns Of Drought Vulnerability In Rice-Producing Districts Of India.” 2015. Web. 19 Apr 2021.

Vancouver:

Byerly H. Spatial Patterns Of Drought Vulnerability In Rice-Producing Districts Of India. [Internet] [Masters thesis]. Cornell University; 2015. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/1813/40638.

Council of Science Editors:

Byerly H. Spatial Patterns Of Drought Vulnerability In Rice-Producing Districts Of India. [Masters Thesis]. Cornell University; 2015. Available from: http://hdl.handle.net/1813/40638

25. Kendale, Balasaheb Maruti. 1970-73 Drought of Maharashtra: with special reference to state and legislative response.

Degree: History, 2012, INFLIBNET

URL: http://shodhganga.inflibnet.ac.in/handle/10603/4402

►

Drought and famine are different but they are interrelated. Famine is more devastating expression of drought. Drought related with shortage of water when water supply… (more)

Subjects/Keywords: History; Drought and famine; Maharashtra

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APA (6^th Edition):

Kendale, B. M. (2012). 1970-73 Drought of Maharashtra: with special reference to state and legislative response. (Thesis). INFLIBNET. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/4402

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kendale, Balasaheb Maruti. “1970-73 Drought of Maharashtra: with special reference to state and legislative response.” 2012. Thesis, INFLIBNET. Accessed April 19, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/4402.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kendale, Balasaheb Maruti. “1970-73 Drought of Maharashtra: with special reference to state and legislative response.” 2012. Web. 19 Apr 2021.

Vancouver:

Kendale BM. 1970-73 Drought of Maharashtra: with special reference to state and legislative response. [Internet] [Thesis]. INFLIBNET; 2012. [cited 2021 Apr 19]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/4402.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kendale BM. 1970-73 Drought of Maharashtra: with special reference to state and legislative response. [Thesis]. INFLIBNET; 2012. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/4402

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Anna University

26. Murali Krishna T. Multi criteria analysis for drought assessment using remote sensing and GIS.

Degree: Civil Engineering, 2011, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/10086

►

Drought is a disastrous natural phenomenon and is generally viewed as a sustained and regionally extensive occurrence of below average natural water availability either in… (more)

▼

Drought is a disastrous natural phenomenon and is generally viewed as a sustained and regionally extensive occurrence of below average natural water availability either in the form of rainfall, river runoff or groundwater. Existing methods consider only a few factors which are not effective for drought mitigation programmes. The specific objectives are (i) to assess meteorological and agricultural droughts using rainfall and remote sensing data; and (ii) to carry out an integrated drought severity assessment using Analytic Hierarchy Process (AHP) and GIS. Palar Sub basin encompassing Vellore, located in the North-East part of Tamil Nadu State, India, was selected to test the methodology. Paddy is the main crop in the study area and is cultivated in three seasons namely, Sornawari, Samba and Navarai. Thirty five years of monthly rainfall data during 1971 to 2005 were analysed for variation in space and time. The results of IMD method over a period of time will not lead to an overall idea of drought proneness in any area as it gives a mixed bag of different severities of drought. Hence, a frequency based Meteorological Drought Severity Index (MDSI) was formulated and applied. The drought severity values were used to generate drought severity map in GIS environment. The agricultural drought severity assessment was carried out by developing an Agricultural Drought Severity Index (ADSI), which involves crop land and fallow land estimation that were delineated from remote sensing data using NDVI analysis. Integrated Drought Severity Index (IDSI) was developed in GIS environment by combining various parameters affecting drought comprising of spatial and non-spatial data. In this study, a drought assessment procedure which will take into account of all the drought causing factors, is attempted and demonstrated. This might be due to the lack of proper drought assessment procedures which would truly reflect the field situation of drought of an area. This thesis addresses that problem.

References p. 146-164, List of publication p. 155

Advisors/Committee Members: Ravikumar G.

Subjects/Keywords: Meteorological Drought Severity Index; Remote sensing; Drought assessment; Agricultural Drought Severity Index; Integrated Drought Severity Index

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APA (6^th Edition):

T, M. K. (2011). Multi criteria analysis for drought assessment using remote sensing and GIS. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/10086

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

T, Murali Krishna. “Multi criteria analysis for drought assessment using remote sensing and GIS.” 2011. Thesis, Anna University. Accessed April 19, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/10086.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

T, Murali Krishna. “Multi criteria analysis for drought assessment using remote sensing and GIS.” 2011. Web. 19 Apr 2021.

Vancouver:

T MK. Multi criteria analysis for drought assessment using remote sensing and GIS. [Internet] [Thesis]. Anna University; 2011. [cited 2021 Apr 19]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/10086.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

T MK. Multi criteria analysis for drought assessment using remote sensing and GIS. [Thesis]. Anna University; 2011. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/10086

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

27. Mohsenzadeh Rabani, Eliza 1986-. Effects of Drought and Growth Media on Lentil Growth Characteristics.

Degree: 2018, University of Saskatchewan

URL: http://hdl.handle.net/10388/8461

► Lentil (Lens culinaris Medik.) is usually grown in regions where lack of moisture limits its production. Drought can be a major limitation to lentil production… (more)

▼ Lentil (Lens culinaris Medik.) is usually grown in regions where lack of moisture limits its production. Drought can be a major limitation to lentil production in the Palliser triangle where annual precipitation is about 300 mm. Root growth and distribution play an important role in crop productivity under dry conditions, enabling plants to access water. The goal of this research was to develop appropriate methods for studying the effects of drought on root and shoot characteristics of a diverse set of lentil genotypes grown in environmentally controlled growth chambers. Two cultivated L. culinaris (Eston and CDC Greenstar) and 5 wild lentil genotypes (L. orientalis IG 72611, L. tomentosus IG 72805, L. odemensis IG 72623, L. lamottei IG 110813, and L. ervoides L01-827A) were grown in Sunshine Mix 4 (SSM4) and Greens Grade® (GG) media under fully-watered and drought conditions in two growth chambers. SSM4 is a commonly used growth medium at U of S, and GG is known to provide rapid separation of root samples from the growth medium with minimum damage to root systems. Shoot and root characteristics of the genotypes were compared after growing them separately in SSM4 and GG to identify the best growth medium and to compare morphology of different lentil genotypes. The influence of drought on root and shoot characteristics of the lentil genotypes was investigated separately in each growth medium. Shoot traits measured included plant height, number of nodes on the main stem, total number of leaflets per plant, SPAD value, shoot biomass and transpiration rate. Root traits measured were number of nodules, root biomass, root/shoot ratio, total root length, total root surface area, length density, average diameter, volume, and total number of tips and forks. SSM4 was found to be a superior growth medium relative to GG. Most genotypes had significantly higher plant height, SPAD, shoot biomass, transpiration rate and nodule number when grown in SSM4. This was likely associated with higher N concentration in SSM4 compared to GG. It seemed that N mineralization (conversion of organic to inorganic plant available form) in SSM4 was greater relative to GG. Lens culinaris Eston had the highest shoot biomass compared to all other lentil genotypes when grown in SSM4 under both fully-watered and drought conditions. However, reduction in root biomass of L. culinaris Eston under dry conditions was significantly higher compared to wild lentil genotypes, an indicator that cultivated lentil genotypes experienced drought stress. The lowest reduction in root biomass was observed in L. odemensis IG 72623, which makes this genotype a potential candidate for introgression of root characteristics into cultivated lentil genotypes. Drought caused reduction in number of nodes, total number of leaflets and transpiration rate. Drought also reduced root/shoot ratio in cultivated lentil genotypes. No significant difference in root/shoot ratio of wild genotypes was observed between fully-watered and drought conditions, with the exception of L. tomentosus… Advisors/Committee Members: Vandenberg, Albert, Shirtliffe, Steve, Bueckert, Rosalind, Schoenau, Jeff, Lemke, Reynald.

Subjects/Keywords: Lentil; Drought; SSM4; GG

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APA (6^th Edition):

Mohsenzadeh Rabani, E. 1. (2018). Effects of Drought and Growth Media on Lentil Growth Characteristics. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/8461

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mohsenzadeh Rabani, Eliza 1986-. “Effects of Drought and Growth Media on Lentil Growth Characteristics.” 2018. Thesis, University of Saskatchewan. Accessed April 19, 2021. http://hdl.handle.net/10388/8461.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mohsenzadeh Rabani, Eliza 1986-. “Effects of Drought and Growth Media on Lentil Growth Characteristics.” 2018. Web. 19 Apr 2021.

Vancouver:

Mohsenzadeh Rabani E1. Effects of Drought and Growth Media on Lentil Growth Characteristics. [Internet] [Thesis]. University of Saskatchewan; 2018. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/10388/8461.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mohsenzadeh Rabani E1. Effects of Drought and Growth Media on Lentil Growth Characteristics. [Thesis]. University of Saskatchewan; 2018. Available from: http://hdl.handle.net/10388/8461

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

28. Azad, Kumkum 1985-. Fungal endophytes that confer tolerance to salt and dry conditions.

Degree: 2016, University of Saskatchewan

URL: http://hdl.handle.net/10388/12592

► Fungal endophytes grow symbiotically inside plants, where some strains promote plant growth and survival under particular abiotic stresses. Tomato (Solanum lycopersicum Var. Rutgers) seeds were… (more)

▼ Fungal endophytes grow symbiotically inside plants, where some strains promote plant growth and survival under particular abiotic stresses. Tomato (Solanum lycopersicum Var. Rutgers) seeds were inoculated with systemic (also called class 2) fungal endophytes (Alternaria spp and Trichoderma harzianum). These endophytes were isolated from plants naturally growing in salinized-soil in Saskatchewan, e.g. Little Manitou Lake shore, Radisson Lake shore, and Mosaic Belle Plaine tailings area. The effects of colonization with systemic fungal endophytes were studied on growth performance of tomato plants under NaCl and drought stress. Endophyte-colonized plants had greater fresh shoot biomass than control plants after 20 d of NaCl stress (300 and 500 mM). They also maintained greater fresh root biomass after 10 d NaCl stress (300 mM). After exposure to chronic 100 mM and 200 mM NaCl stress, there was no remarkable difference in plant biomass (both root and shoot) between endophyte-colonized plants and non-colonized control plants. Exposure to NaCl stress altered different aspects of the plants’ physiology such as photosynthetic efficiency, osmolyte adjustment, and reactive oxygen species generation. Photosynthetic efficiency was improved by endophyte colonization during chronic NaCl stress, but decreased significantly during ≥400 mM NaCl stress. Although osmolality of plants increased with the increase of NaCl salinity, there was no effect of endophyte colonization on plant osmolality. On the other hand, reactive oxygen species activity of endophyte-colonized plants was always lower in comparison to non-colonized control plants in response to NaCl stress. Endophyte-colonized plants growth performance and physiological responses were also determined under drought. Endophyte-colonized plants had significantly higher shoot biomass in comparison to non-colonized control plants after intermittent drought and continuous drought. Physiological responses of plants differed following intermittent and continuous drought stress. Photosynthetic efficiency of endophyte-colonized plants improved significantly after intermittent drought, but there was no effect of endophyte colonization on photosynthetic efficiency of plants after continuous drought. On the other hand, increased proline accumulation and decreased osmolyte concentration were observed in endophyte-colonized plants in response to drought stress. There was also indication of less reactive oxygen species in endophyte-colonized plants upon drought stress. Finally, better fluid use efficiency of endophyte-colonized plants was observed, which is correlated to drought tolerance in endophyte-colonized plants. These results suggest that our systemic fungal endophytes have the potential to improve agriculture and horticulture on salinized and dry soils which are common phenomenon in semi-arid environments. Advisors/Committee Members: Kaminskyj, Susan, Basinger, Jim, Wilson, Ken, Knight, Diane.

Subjects/Keywords: Fungal endophytes; salt stress; drought

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Azad, K. 1. (2016). Fungal endophytes that confer tolerance to salt and dry conditions. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/12592

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Azad, Kumkum 1985-. “Fungal endophytes that confer tolerance to salt and dry conditions.” 2016. Thesis, University of Saskatchewan. Accessed April 19, 2021. http://hdl.handle.net/10388/12592.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Azad, Kumkum 1985-. “Fungal endophytes that confer tolerance to salt and dry conditions.” 2016. Web. 19 Apr 2021.

Vancouver:

Azad K1. Fungal endophytes that confer tolerance to salt and dry conditions. [Internet] [Thesis]. University of Saskatchewan; 2016. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/10388/12592.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Azad K1. Fungal endophytes that confer tolerance to salt and dry conditions. [Thesis]. University of Saskatchewan; 2016. Available from: http://hdl.handle.net/10388/12592

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

29. Bynum, Joshua Brian. Physiological applications for determining water use efficiency among cotton genotypes.

Degree: PhD, Agronomy, 2009, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-2635

► Drought stress can substantially alter plant metabolism by decreasing plant growth and photosynthesis. The lack of rapid and reliable screening criteria and measurement techniques for… (more)

▼ Drought stress can substantially alter plant metabolism by decreasing plant growth and photosynthesis. The lack of rapid and reliable screening criteria and measurement techniques for determining water use efficiency (WUE) of crop plants has greatly restricted progress in this critical area of crop improvement. In grain sorghum (Sorghum bicolor L.), WUE was associated with the transpiration ratio [CO2 assimilation (A) / transpiration rate (E), A:E] from leaf gas exchange measurements. Research is needed to identify drought effects on plant productivity and to exploit the use of this knowledge in breeding and agronomic efforts. Therefore, the objectives of this study were to determine if differences in A:E and other physiological parameters existed between two selected cotton (Gossypium hirsutum L.) genotypes and to evaluate the response of cotton genotypes experiencing water stress at two different growth stages on biomass production and yield. Two experiments were conducted using two cotton genotypes differing in drought tolerance. Each experiment was repeated three times in a randomized complete block design with six replications. In Experiment I, the water stress treatment was induced by withholding water when the plants reached the 4-node growth stage. The water stress treatment in Experiment II was imposed at early bloom. Gas exchange and chlorophyll fluorescence measurements were collected during dry-down and recovery periods to determine water stress effects on plant physiology. Biomass was partitioned following the recovery period, to examine phenotypic responses of plants exposed to water stress. The results of these experiments indicate that A:E is significantly increased as leaf water potential (ψL) decreases with no differences in A:E between the two genotypes. Gas exchange measurements showed significant decreases with declining ψL and significant increases upon re-watering; yet, no differences were observed between the two genotypes. Chlorophyll fluorescence was not different between genotypes in either light- or dark-adapted leaves. In Experiment I TAM 89E-51 had a significantly greater seedcotton yield; however, in Experiment II TAMCOT 22 had the greater yield. These experiments suggest that the effects of water stress on cotton are a function of the intensity of the stress and the growth stage in which the stress is experienced. Advisors/Committee Members: Cothren, Joe Tom (advisor), Balota, Maria (committee member), Lemon, Robert G. (committee member), Lombardini, Leonardo (committee member).

Subjects/Keywords: Cotton; drought

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bynum, J. B. (2009). Physiological applications for determining water use efficiency among cotton genotypes. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2635

Chicago Manual of Style (16^th Edition):

Bynum, Joshua Brian. “Physiological applications for determining water use efficiency among cotton genotypes.” 2009. Doctoral Dissertation, Texas A&M University. Accessed April 19, 2021. http://hdl.handle.net/1969.1/ETD-TAMU-2635.

MLA Handbook (7^th Edition):

Bynum, Joshua Brian. “Physiological applications for determining water use efficiency among cotton genotypes.” 2009. Web. 19 Apr 2021.

Vancouver:

Bynum JB. Physiological applications for determining water use efficiency among cotton genotypes. [Internet] [Doctoral dissertation]. Texas A&M University; 2009. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2635.

Council of Science Editors:

Bynum JB. Physiological applications for determining water use efficiency among cotton genotypes. [Doctoral Dissertation]. Texas A&M University; 2009. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2635

Texas A&M University

30. Watson, Matthew Raymond. Chamber Measurements of Trace Gas Exchanges for Several Oak Species Exposed to Ozone and Drought.

Degree: MS, Atmospheric Sciences, 2016, Texas A&M University

URL: http://hdl.handle.net/1969.1/159083

► Several species of oak were used in a series of chamber based experiments. The species of oaks chosen (Quercus alba, muehlenbergii, and virginiana) were selected… (more)

Subjects/Keywords: isoprene; oak; Quercus; ozone; drought

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Watson, M. R. (2016). Chamber Measurements of Trace Gas Exchanges for Several Oak Species Exposed to Ozone and Drought. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/159083

Chicago Manual of Style (16^th Edition):

Watson, Matthew Raymond. “Chamber Measurements of Trace Gas Exchanges for Several Oak Species Exposed to Ozone and Drought.” 2016. Masters Thesis, Texas A&M University. Accessed April 19, 2021. http://hdl.handle.net/1969.1/159083.

MLA Handbook (7^th Edition):

Watson, Matthew Raymond. “Chamber Measurements of Trace Gas Exchanges for Several Oak Species Exposed to Ozone and Drought.” 2016. Web. 19 Apr 2021.

Vancouver:

Watson MR. Chamber Measurements of Trace Gas Exchanges for Several Oak Species Exposed to Ozone and Drought. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/1969.1/159083.

Council of Science Editors:

Watson MR. Chamber Measurements of Trace Gas Exchanges for Several Oak Species Exposed to Ozone and Drought. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/159083

Open Access Theses and Dissertations