subject:(germination)

Oregon State University

1. Leahy, Peter Michael. The effects of some soaking treatments on the germination of Douglas-fir seed.

Degree: MS, Forest Management, 1954, Oregon State University

URL: http://hdl.handle.net/1957/10338

► The Oregon State Cooperative Seed laboratory uses two methods for testing the quality of Douglas-fir seed lots. The first of these is a straight-forward germination… (more)

▼ The Oregon State Cooperative Seed laboratory uses two methods for testing the quality of Douglas-fir seed lots. The first of these is a straight-forward germination test without any pre-treatment of the seed, involving a period of 42 days in the germinator at alternating 20°C.-30°C. temperatures. The second method consists of 14 days pre-chill of the seed on the moistened medium at 5°C. prior to 28 days germination at the same alternating temperatures. The pre-chill helps to overcome dormancy which may be present in the lots. Recent work by several investigators has indicated that soaking pre-treatments might also be employed to overcome dormancy in coniferous seed. The study was designed to evaluate some of these soaking treatments in relation to the methods at present used by the laboratory. In all cases soaking was followed by pre-chilling; so that a measure of additional effects of the soaking treatment on the dormant seed was obtained. Two studies were made with the normal laboratory testing methods as controls. The first consisted of soaking the seed in water at temperatures of 5°C., 20°C. and 30°C. for periods of 12, 24, 36 and 48 hours, prior to pre-chill and germination. In the second study soaking temperatures of 5°C. for 36 hours and 30°C. for 14 hours were used. The seed was soaked in water and in 0.2 percent potassium nitrate solution , to determine the merits of the two soaking media. At 5°C. the effect of light during the soaking was examined together with its effect during pre-chilling on the germination of seed soaked at both temperatures. Included in the thesis are the results of a small study designed to determine an effective and reliable method of estimating moisture content in the soaked seed. Consequently moisture content was determined on an over-dry weight basis after heating the soaked seed at 100°C. for six hours in an air-oven. Three seed lots were used in an attempt to obtain results over a wide range of seed quality. As demonstrated by the germination figures, the lots chosen exhibited such a range. Though the lots responded differently to the treatments employed, no over-all increase in germination of the dormant seed present was obtained with any of the treatments. The 30°C. soaking for the longer periods produced a considerable decline in the germination, germinative capacity and germinative energy of the lots. Dormancy was present in two of the three lots, but the number of dormant seeds remained approximately constant over all the treatments. Dormancy was reduced only in the case of the pre-chilled controls over the controls without pre-chill. The statistical analysis of the germination percentages revealed that temperatures of soaking was the dominant factor affecting germination. The period of soaking, though influencing the moisture content attained, was of little consequence in germination. No responses were obtained with the use of light during soaking and pre-chill, nor with the variation in soaking medium. A convariance analysis of moisture content attained and… Advisors/Committee Members: Barnes, George H. (advisor).

Subjects/Keywords: Germination

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APA (6^th Edition):

Leahy, P. M. (1954). The effects of some soaking treatments on the germination of Douglas-fir seed. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/10338

Chicago Manual of Style (16^th Edition):

Leahy, Peter Michael. “The effects of some soaking treatments on the germination of Douglas-fir seed.” 1954. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/10338.

MLA Handbook (7^th Edition):

Leahy, Peter Michael. “The effects of some soaking treatments on the germination of Douglas-fir seed.” 1954. Web. 27 Feb 2021.

Vancouver:

Leahy PM. The effects of some soaking treatments on the germination of Douglas-fir seed. [Internet] [Masters thesis]. Oregon State University; 1954. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/10338.

Council of Science Editors:

Leahy PM. The effects of some soaking treatments on the germination of Douglas-fir seed. [Masters Thesis]. Oregon State University; 1954. Available from: http://hdl.handle.net/1957/10338

Oregon State University

2. Hale, Ralph Irvin. A study of some economic factors in the scarification of red clover and alfalfa seed.

Degree: MS, Farm Crops, 1927, Oregon State University

URL: http://hdl.handle.net/1957/50736

Subjects/Keywords: Germination

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APA (6^th Edition):

Hale, R. I. (1927). A study of some economic factors in the scarification of red clover and alfalfa seed. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/50736

Chicago Manual of Style (16^th Edition):

Hale, Ralph Irvin. “A study of some economic factors in the scarification of red clover and alfalfa seed.” 1927. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/50736.

MLA Handbook (7^th Edition):

Hale, Ralph Irvin. “A study of some economic factors in the scarification of red clover and alfalfa seed.” 1927. Web. 27 Feb 2021.

Vancouver:

Hale RI. A study of some economic factors in the scarification of red clover and alfalfa seed. [Internet] [Masters thesis]. Oregon State University; 1927. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/50736.

Council of Science Editors:

Hale RI. A study of some economic factors in the scarification of red clover and alfalfa seed. [Masters Thesis]. Oregon State University; 1927. Available from: http://hdl.handle.net/1957/50736

Oregon State University

3. Ryall, A. Lloyd (Albert Lloyd), 1904-. The effects of certain glucosides on the germination of pollen in artificial media.

Degree: MS, Pomology, 1928, Oregon State University

URL: http://hdl.handle.net/1957/51541

Subjects/Keywords: Germination

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APA (6^th Edition):

Ryall, A. Lloyd (Albert Lloyd), 1. (1928). The effects of certain glucosides on the germination of pollen in artificial media. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/51541

Chicago Manual of Style (16^th Edition):

Ryall, A. Lloyd (Albert Lloyd), 1904-. “The effects of certain glucosides on the germination of pollen in artificial media.” 1928. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/51541.

MLA Handbook (7^th Edition):

Ryall, A. Lloyd (Albert Lloyd), 1904-. “The effects of certain glucosides on the germination of pollen in artificial media.” 1928. Web. 27 Feb 2021.

Vancouver:

Ryall, A. Lloyd (Albert Lloyd) 1. The effects of certain glucosides on the germination of pollen in artificial media. [Internet] [Masters thesis]. Oregon State University; 1928. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/51541.

Council of Science Editors:

Ryall, A. Lloyd (Albert Lloyd) 1. The effects of certain glucosides on the germination of pollen in artificial media. [Masters Thesis]. Oregon State University; 1928. Available from: http://hdl.handle.net/1957/51541

Oregon State University

4. Finnell, Harold Ethan. Relation of certain physical characters of Phalaris arundinaceae (reed canary grass) seed to germination.

Degree: MS, Farm Crops, 1936, Oregon State University

URL: http://hdl.handle.net/1957/52846

Subjects/Keywords: Germination

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APA (6^th Edition):

Finnell, H. E. (1936). Relation of certain physical characters of Phalaris arundinaceae (reed canary grass) seed to germination. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/52846

Chicago Manual of Style (16^th Edition):

Finnell, Harold Ethan. “Relation of certain physical characters of Phalaris arundinaceae (reed canary grass) seed to germination.” 1936. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/52846.

MLA Handbook (7^th Edition):

Finnell, Harold Ethan. “Relation of certain physical characters of Phalaris arundinaceae (reed canary grass) seed to germination.” 1936. Web. 27 Feb 2021.

Vancouver:

Finnell HE. Relation of certain physical characters of Phalaris arundinaceae (reed canary grass) seed to germination. [Internet] [Masters thesis]. Oregon State University; 1936. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/52846.

Council of Science Editors:

Finnell HE. Relation of certain physical characters of Phalaris arundinaceae (reed canary grass) seed to germination. [Masters Thesis]. Oregon State University; 1936. Available from: http://hdl.handle.net/1957/52846

Oregon State University

5. Downes, Patricia Marion. Glutamine synthetase and α-Amylase activity in germinating wheat under water stress.

Degree: MS, Crop Science, 1978, Oregon State University

URL: http://hdl.handle.net/1957/43425

► An integrated study of growth, enzyme activity, and water potential of wheat seeds germinated under mild water stress conditions was conducted to observe the relationship… (more)

▼ An integrated study of growth, enzyme activity, and water potential of wheat seeds germinated under mild water stress conditions was conducted to observe the relationship among the three kinds of parameters studied. From the relationship, the cause(s) or mechanism(s) of water stress in plant growth may be enlightened. Two important Pacific Northwest commercial cultivars, Hyslop and Wanser were studied under three mild stress conditions which often prevail at planting time in dryland areas of the Pacific Northwest. The stress conditions were simulated by mannitol solutions to provide -3, -6, and -9 bars of water potential. Seeds were germinated at 20-25°C in the dark and samples were taken daily. For seedling axis, water content, fresh and dry weights, soluble protein content, glutamine synthetase (GS) activity and total water potential were determined. For endosperm, a-amylase activity and total water potential were measured. Experimental results reveal that water potential, water content, fresh weight, dry weight, and soluble protein content of the seedling axis were progressively decreased with increasing stress. GS activity was reduced by the stress during the first two days of germination, then adaptation processes occurred resulting in comparable GS activity in all treated materials. The adaptive mechanism apparently occurs at the transcriptional level in producing more efficient GS in compensating the mild environmental stress. In endosperm, α-amylase activity was decreased by the stress treatments while water potential was increased by stress. As the treatments continued, a differential reduction expressed by the two cultivars occurred with the drought resistant Wanser being less affected or able to produce relatively more enzyme under stressed conditions. Based on the close relationship of water potential and soluble protein content in seedling axis, protein synthesis probably is the most sensitive system in plants to be affected by water stress. Under continuous mild stresses adaptive mechanism and genetic ability of adjustment seems to take effect and allow plants to cope with adverse conditions. Advisors/Committee Members: Ching, Te May (advisor), Allen, Tom (committee member).

Subjects/Keywords: Germination

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APA (6^th Edition):

Downes, P. M. (1978). Glutamine synthetase and α-Amylase activity in germinating wheat under water stress. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/43425

Chicago Manual of Style (16^th Edition):

Downes, Patricia Marion. “Glutamine synthetase and α-Amylase activity in germinating wheat under water stress.” 1978. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/43425.

MLA Handbook (7^th Edition):

Downes, Patricia Marion. “Glutamine synthetase and α-Amylase activity in germinating wheat under water stress.” 1978. Web. 27 Feb 2021.

Vancouver:

Downes PM. Glutamine synthetase and α-Amylase activity in germinating wheat under water stress. [Internet] [Masters thesis]. Oregon State University; 1978. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/43425.

Council of Science Editors:

Downes PM. Glutamine synthetase and α-Amylase activity in germinating wheat under water stress. [Masters Thesis]. Oregon State University; 1978. Available from: http://hdl.handle.net/1957/43425

Oregon State University

6. Scopel, Ana L. Photocontrol of seed germination in arable land.

Degree: PhD, Crop Science, 1993, Oregon State University

URL: http://hdl.handle.net/1957/35575

Subjects/Keywords: Germination

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APA (6^th Edition):

Scopel, A. L. (1993). Photocontrol of seed germination in arable land. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/35575

Chicago Manual of Style (16^th Edition):

Scopel, Ana L. “Photocontrol of seed germination in arable land.” 1993. Doctoral Dissertation, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/35575.

MLA Handbook (7^th Edition):

Scopel, Ana L. “Photocontrol of seed germination in arable land.” 1993. Web. 27 Feb 2021.

Vancouver:

Scopel AL. Photocontrol of seed germination in arable land. [Internet] [Doctoral dissertation]. Oregon State University; 1993. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/35575.

Council of Science Editors:

Scopel AL. Photocontrol of seed germination in arable land. [Doctoral Dissertation]. Oregon State University; 1993. Available from: http://hdl.handle.net/1957/35575

Oregon State University

7. Johnson, Le Roy Curtis. Effect of light quality and periodicity upon germination of Douglas-fir seed (Pseudotsuga menziesii (Mirb.) Franco) and on growth of Douglas-fir seedlings.

Degree: MS, Forestry, 1965, Oregon State University

URL: http://hdl.handle.net/1957/19786

► A study on the effects of light quality and periodicity on the germination of Douglas-fir seed and the growth of Douglas-fir seedlings was conducted. Interest… (more)

Subjects/Keywords: Germination

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APA (6^th Edition):

Johnson, L. R. C. (1965). Effect of light quality and periodicity upon germination of Douglas-fir seed (Pseudotsuga menziesii (Mirb.) Franco) and on growth of Douglas-fir seedlings. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/19786

Chicago Manual of Style (16^th Edition):

Johnson, Le Roy Curtis. “Effect of light quality and periodicity upon germination of Douglas-fir seed (Pseudotsuga menziesii (Mirb.) Franco) and on growth of Douglas-fir seedlings.” 1965. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/19786.

MLA Handbook (7^th Edition):

Johnson, Le Roy Curtis. “Effect of light quality and periodicity upon germination of Douglas-fir seed (Pseudotsuga menziesii (Mirb.) Franco) and on growth of Douglas-fir seedlings.” 1965. Web. 27 Feb 2021.

Vancouver:

Johnson LRC. Effect of light quality and periodicity upon germination of Douglas-fir seed (Pseudotsuga menziesii (Mirb.) Franco) and on growth of Douglas-fir seedlings. [Internet] [Masters thesis]. Oregon State University; 1965. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/19786.

Council of Science Editors:

Johnson LRC. Effect of light quality and periodicity upon germination of Douglas-fir seed (Pseudotsuga menziesii (Mirb.) Franco) and on growth of Douglas-fir seedlings. [Masters Thesis]. Oregon State University; 1965. Available from: http://hdl.handle.net/1957/19786

Oregon State University

8. Hayes, William Brewster. An attempt to hasten the after-ripening and germination of the sweetbrier.

Degree: MS, Horticulture, 1930, Oregon State University

URL: http://hdl.handle.net/1957/23350

Subjects/Keywords: Germination

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APA (6^th Edition):

Hayes, W. B. (1930). An attempt to hasten the after-ripening and germination of the sweetbrier. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/23350

Chicago Manual of Style (16^th Edition):

Hayes, William Brewster. “An attempt to hasten the after-ripening and germination of the sweetbrier.” 1930. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/23350.

MLA Handbook (7^th Edition):

Hayes, William Brewster. “An attempt to hasten the after-ripening and germination of the sweetbrier.” 1930. Web. 27 Feb 2021.

Vancouver:

Hayes WB. An attempt to hasten the after-ripening and germination of the sweetbrier. [Internet] [Masters thesis]. Oregon State University; 1930. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/23350.

Council of Science Editors:

Hayes WB. An attempt to hasten the after-ripening and germination of the sweetbrier. [Masters Thesis]. Oregon State University; 1930. Available from: http://hdl.handle.net/1957/23350

Oregon State University

9. Daniels, Barbara Ann. Factors affecting germination of endomycorrhizal spores.

Degree: PhD, Botany, 1978, Oregon State University

URL: http://hdl.handle.net/1957/42867

► Four isolates of Glomus mosseae, collected from diverse geographic locations, were pot cultured on varied host plants or stored in the same soil as collected.… (more)

▼ Four isolates of Glomus mosseae, collected from diverse geographic locations, were pot cultured on varied host plants or stored in the same soil as collected. Spores of three isolates failed to germinate on any of five agar media while the fourth germinated well on all media. Lack of germination on agar media was not attributable to lack of viability as spores of all four isolates germinated when enclosed in nylon screen bags and buried in pasteurized soil mix containing a coleus plant. Scanning electron micrographs determined that morphological characteristics of the four isolates differed as well. A new endomycorrhizal species, Glomus epigaeus, produces abundant chlamydospores in sporocarps on the soil surface. This species has been maintained for more than 1 year in pot culture on various hosts and produces 8-15 sporocarps monthly from each pot. A simple technique of shaking sporocarps in water with broken glass chips is described for the separation of spores from sporocarps. The epigeous habit, narrow, thin-walled, inserted hyphal attachment and bright yellow to yellow brown wall color in transmitted light separate G. epigaeus from Glomus macrocarpus, which is not known to fruit epigeously and has a much broader, thick-walled, noninserted hyphal attachment and brown wall color in transmitted light. The influence of physical and chemical factors on germination of Glomus epigaeus spores was tested in nonsterile soil. Soil moisture, temperature, and to a lesser degree, pH, appear to influence germination, while the levels of soil fertility and spore density tested had little or no effect. Maximum spore germination occurred in soil at or above field capacity, between 18-25° C and between 6-8 pH. These conditions seem closely related to the conditions optimal for growth of many host plants, and this relationship is discussed. Spore germination of Glomus epigaeus was completely inhibited in forest, dune and agricultural soils which were autoclaved, and in Chehalis silt loam which was gamma-irradiated or pasteurized as well as autoclaved. However, 65-80% germination occurred in most nonsterile soils, autoclaved or nonsterile kaolin and activated charcoal. Similar levels of germination occurred on nonsterile Chehalis silt loam containing nonmycorrhizal, ectomycorrhizal and VA mycorrhizal seedlings, although penetration and infection was evident only in VA mycorrhizal host seedlings. Advisors/Committee Members: Trappe, James M. (advisor).

Subjects/Keywords: Germination

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APA (6^th Edition):

Daniels, B. A. (1978). Factors affecting germination of endomycorrhizal spores. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/42867

Chicago Manual of Style (16^th Edition):

Daniels, Barbara Ann. “Factors affecting germination of endomycorrhizal spores.” 1978. Doctoral Dissertation, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/42867.

MLA Handbook (7^th Edition):

Daniels, Barbara Ann. “Factors affecting germination of endomycorrhizal spores.” 1978. Web. 27 Feb 2021.

Vancouver:

Daniels BA. Factors affecting germination of endomycorrhizal spores. [Internet] [Doctoral dissertation]. Oregon State University; 1978. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/42867.

Council of Science Editors:

Daniels BA. Factors affecting germination of endomycorrhizal spores. [Doctoral Dissertation]. Oregon State University; 1978. Available from: http://hdl.handle.net/1957/42867

Michigan State University

10. Patriarche, Albert M. A study of the behavior of grains of corn & wheat, & the seeds of onions, in & out of the ground, while germinating.

Degree: 1898, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:49203

Thesis – State Agricultural College, 1898

Subjects/Keywords: Germination

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APA (6^th Edition):

Patriarche, A. M. (1898). A study of the behavior of grains of corn & wheat, & the seeds of onions, in & out of the ground, while germinating. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:49203

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):

Patriarche, Albert M. “A study of the behavior of grains of corn & wheat, & the seeds of onions, in & out of the ground, while germinating.” 1898. Thesis, Michigan State University. Accessed February 27, 2021. http://etd.lib.msu.edu/islandora/object/etd:49203.

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

MLA Handbook (7^th Edition):

Patriarche, Albert M. “A study of the behavior of grains of corn & wheat, & the seeds of onions, in & out of the ground, while germinating.” 1898. Web. 27 Feb 2021.

Vancouver:

Patriarche AM. A study of the behavior of grains of corn & wheat, & the seeds of onions, in & out of the ground, while germinating. [Internet] [Thesis]. Michigan State University; 1898. [cited 2021 Feb 27]. Available from: http://etd.lib.msu.edu/islandora/object/etd:49203.

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

Council of Science Editors:

Patriarche AM. A study of the behavior of grains of corn & wheat, & the seeds of onions, in & out of the ground, while germinating. [Thesis]. Michigan State University; 1898. Available from: http://etd.lib.msu.edu/islandora/object/etd:49203

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

Michigan State University

11. Bowser, Perry Hamer. Difficulties in the germination of Cypripedium seed.

Degree: MS, 1940, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:41372

Subjects/Keywords: Germination

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APA (6^th Edition):

Bowser, P. H. (1940). Difficulties in the germination of Cypripedium seed. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:41372

Chicago Manual of Style (16^th Edition):

Bowser, Perry Hamer. “Difficulties in the germination of Cypripedium seed.” 1940. Masters Thesis, Michigan State University. Accessed February 27, 2021. http://etd.lib.msu.edu/islandora/object/etd:41372.

MLA Handbook (7^th Edition):

Bowser, Perry Hamer. “Difficulties in the germination of Cypripedium seed.” 1940. Web. 27 Feb 2021.

Vancouver:

Bowser PH. Difficulties in the germination of Cypripedium seed. [Internet] [Masters thesis]. Michigan State University; 1940. [cited 2021 Feb 27]. Available from: http://etd.lib.msu.edu/islandora/object/etd:41372.

Council of Science Editors:

Bowser PH. Difficulties in the germination of Cypripedium seed. [Masters Thesis]. Michigan State University; 1940. Available from: http://etd.lib.msu.edu/islandora/object/etd:41372

University of Arizona

12. Távora, Francisco José A. F. Influence of mechanical injury on germination and growth of safflower seeds (Carthamus tinctorius L.) .

Degree: 1970, University of Arizona

URL: http://hdl.handle.net/10150/555163

Subjects/Keywords: Germination.

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APA (6^th Edition):

Távora, F. J. A. F. (1970). Influence of mechanical injury on germination and growth of safflower seeds (Carthamus tinctorius L.) . (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/555163

Chicago Manual of Style (16^th Edition):

Távora, Francisco José A F. “Influence of mechanical injury on germination and growth of safflower seeds (Carthamus tinctorius L.) .” 1970. Masters Thesis, University of Arizona. Accessed February 27, 2021. http://hdl.handle.net/10150/555163.

MLA Handbook (7^th Edition):

Távora, Francisco José A F. “Influence of mechanical injury on germination and growth of safflower seeds (Carthamus tinctorius L.) .” 1970. Web. 27 Feb 2021.

Vancouver:

Távora FJAF. Influence of mechanical injury on germination and growth of safflower seeds (Carthamus tinctorius L.) . [Internet] [Masters thesis]. University of Arizona; 1970. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10150/555163.

Council of Science Editors:

Távora FJAF. Influence of mechanical injury on germination and growth of safflower seeds (Carthamus tinctorius L.) . [Masters Thesis]. University of Arizona; 1970. Available from: http://hdl.handle.net/10150/555163

Macquarie University

13. Haigh, Anthony Mark. The priming of seeds: investigations into a method of priming large quantities of seeds using salt solutions.

Degree: MSc, 1984, Macquarie University

URL: http://hdl.handle.net/1959.14/42456

►

"September, 1983".

Bibliography: leaves 128-142.

Introduction and background – The time course of germination and its analysis – Osmotic effects on germination – High-humidity hydration… (more)

▼

"September, 1983".

Bibliography: leaves 128-142.

Introduction and background – The time course of germination and its analysis – Osmotic effects on germination – High-humidity hydration of seeds – Techniques of priming – Field emergence of primed seeds – Discussion.

Seed priming, which involves the hydration of seeds in an osmotic solution before sowing, produces seeds with improved germination performance. This study was aimed at optimizing the priming of tomato, carrot, onion and sorghum seeds by a method which could be readily scaled up for commercial use. – Initially, to determine appropriate priming solutions, the germination responses of the four species to a range of osmotic potentials from 0 to -1.75 MPa in a range of osmotica - K₂HPO₄, K₃P0₄, KN0₃, K₂HPO₄ + KN0₃, K₃P0₄ + KN0₃ and Polyethylene glycol (PEG) - were investigated. – The most effective priming treatment was shown to be one in which the osmoticum prevented germination without being toxi c, at a high osmotic potential. There were marked interactions between species, osmotic potential and the osmoticum used for priming. Tomato seeds were readily primed in any of the series of salt or PEG solutions . All of the solutions tried were adequate for carrot seeds. Onion seeds could be primed in either K₂HPO₄, K₃P0₄ or PEG solutions; however, all solutions were toxic to sorghum seeds or failed to prevent germination. – The selected priming treatment was further optimized by experiments that investigated the influence of duration and temperature of priming. Priming at a lower temperature for a longer time was more beneficial than at higher temperatures. However, priming for too long a period was found to have adverse effects . Tomato seeds showed improved performance after priming for 16 t o 18 days at 15 C whereas for carrot seeds a duration of 8 to 10 days was adequate, but prolonged treatment led to reduced germination percentages. Columns of aerated solutions were found to be suitable for the priming of large quantities of tomato and carrot seeds. Air-drying of primed tomato and carrot seeds was possible without loss of germinability or priming effect. – Limited field experiments at Yanco Agricultural Research Centre showed that primed tomato and carrot seeds emerged twice as fast as untreated seeds and had improved uniformity of emergence, particularly at low soil temperatures. These benefits from priming were maintained through to the first true leaf stage of development. – It was concluded that it was possible to prime certain seeds in simple salt solutions by a method capable of expansion to commercial scales of operation and produce benefits to emergence which were maintained after drying to facilitate sowing using existing drilling equipment.

xi, 168 leaves

Advisors/Committee Members: Macquarie University. School of Biological Sciences.

Subjects/Keywords: Germination

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APA (6^th Edition):

Haigh, A. M. (1984). The priming of seeds: investigations into a method of priming large quantities of seeds using salt solutions. (Masters Thesis). Macquarie University. Retrieved from http://hdl.handle.net/1959.14/42456

Chicago Manual of Style (16^th Edition):

Haigh, Anthony Mark. “The priming of seeds: investigations into a method of priming large quantities of seeds using salt solutions.” 1984. Masters Thesis, Macquarie University. Accessed February 27, 2021. http://hdl.handle.net/1959.14/42456.

MLA Handbook (7^th Edition):

Haigh, Anthony Mark. “The priming of seeds: investigations into a method of priming large quantities of seeds using salt solutions.” 1984. Web. 27 Feb 2021.

Vancouver:

Haigh AM. The priming of seeds: investigations into a method of priming large quantities of seeds using salt solutions. [Internet] [Masters thesis]. Macquarie University; 1984. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1959.14/42456.

Council of Science Editors:

Haigh AM. The priming of seeds: investigations into a method of priming large quantities of seeds using salt solutions. [Masters Thesis]. Macquarie University; 1984. Available from: http://hdl.handle.net/1959.14/42456

University of British Columbia

14. Bientjes, Willem. Coniferous tree seed germination with particular reference to the effects of temperature, seed moisture and stratification on germination behaviour of western hemlock seed.

Degree: Master of Social Work - MSW, Social Work, 1954, University of British Columbia

URL: http://hdl.handle.net/2429/40980

► In a study of the problems met in testing germination of coniferous tree seed, special attention is given to the variability between different seedlots of… (more)

▼ In a study of the problems met in testing germination of coniferous tree seed, special attention is given to the variability between different seedlots of the same species. Known and suspected causes for this variability are discussed. These include seed source, genetic constitution of individual trees, seed maturity, treatments during the commercial extraction process and storage conditions. Loss in seed viability may occur during anyone of several phases of the extraction process, such as cone storage, kiln drying and dewinging. In the discussion of the germination test procedure the importance of a moist-cold pretreatment or "stratification" is indicated. It is shown, that many species of coniferous seed are subjected to such treatment in nature. The desirability of stratification of coniferous seed as a standard pretreatment prior to incubation is emphasized. The effect of stratification on temperature and light requirements is discussed for Douglas fir in particular. The usual methods for stratification and their disadvantages are described. In order to overcome some of the disadvantages of the older stratification methods, particularly the lack of control over seed moisture content, the "naked stratification" method was developed at the University of British Columbia. This method has been applied successfully to Douglas fir seed and seed from several other species. A detailed description is given of an experiment, designed to develop a standard germination test for western hemlock seed. This involved determination of an optimum incubation temperature, seed moisture content and stratification period. The "naked stratification" method was used. The effect of incubation temperature, seed moisture content and stratification on the final germination percentage and the rate of germination was evaluated, using analysis of Variance and the t-test. The results showed, that for germination of western hemlock seed the following treatments are most favourable. Stratification for 7 — 9 weeks with a seed moisture content of 50 - 75 percent,—which is obtained after approximately 33 hours of soaking,—followed by incubation at a constant temperature of 20°C. Under these conditions the germination test can be concluded in approximately 20 days. Different incubation temperatures influenced both final germination percentage and rate of germination. Different seed moisture contents and stratification periods generally did not affect the final germination percentage, but did have a pronounced effect on the rate of germination. Stratification did not seem to change the temperature requirements of western hemlock seed. Differences in the germination behaviour of the four seedlots tested were observed.

Subjects/Keywords: Germination

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APA (6^th Edition):

Bientjes, W. (1954). Coniferous tree seed germination with particular reference to the effects of temperature, seed moisture and stratification on germination behaviour of western hemlock seed. (Masters Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/40980

Chicago Manual of Style (16^th Edition):

Bientjes, Willem. “Coniferous tree seed germination with particular reference to the effects of temperature, seed moisture and stratification on germination behaviour of western hemlock seed.” 1954. Masters Thesis, University of British Columbia. Accessed February 27, 2021. http://hdl.handle.net/2429/40980.

MLA Handbook (7^th Edition):

Bientjes, Willem. “Coniferous tree seed germination with particular reference to the effects of temperature, seed moisture and stratification on germination behaviour of western hemlock seed.” 1954. Web. 27 Feb 2021.

Vancouver:

Bientjes W. Coniferous tree seed germination with particular reference to the effects of temperature, seed moisture and stratification on germination behaviour of western hemlock seed. [Internet] [Masters thesis]. University of British Columbia; 1954. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2429/40980.

Council of Science Editors:

Bientjes W. Coniferous tree seed germination with particular reference to the effects of temperature, seed moisture and stratification on germination behaviour of western hemlock seed. [Masters Thesis]. University of British Columbia; 1954. Available from: http://hdl.handle.net/2429/40980

15. Clay, Horace F. Germination studies on the seeds of certain tropical and subtropical plants.

Degree: Floriculture, 1951, University of Massachusetts

URL: https://scholarworks.umass.edu/theses/2860

Subjects/Keywords: Germination.

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APA (6^th Edition):

Clay, H. F. (1951). Germination studies on the seeds of certain tropical and subtropical plants. (Thesis). University of Massachusetts. Retrieved from https://scholarworks.umass.edu/theses/2860

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):

Clay, Horace F. “Germination studies on the seeds of certain tropical and subtropical plants.” 1951. Thesis, University of Massachusetts. Accessed February 27, 2021. https://scholarworks.umass.edu/theses/2860.

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

MLA Handbook (7^th Edition):

Clay, Horace F. “Germination studies on the seeds of certain tropical and subtropical plants.” 1951. Web. 27 Feb 2021.

Vancouver:

Clay HF. Germination studies on the seeds of certain tropical and subtropical plants. [Internet] [Thesis]. University of Massachusetts; 1951. [cited 2021 Feb 27]. Available from: https://scholarworks.umass.edu/theses/2860.

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

Council of Science Editors:

Clay HF. Germination studies on the seeds of certain tropical and subtropical plants. [Thesis]. University of Massachusetts; 1951. Available from: https://scholarworks.umass.edu/theses/2860

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

16. Mioduchowska, Barbara W. Salt effects on some physiological processes associated with seed germination.

Degree: Plant & Soil Sciences, 1970, University of Massachusetts

URL: https://scholarworks.umass.edu/theses/3261

Subjects/Keywords: Germination.

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APA (6^th Edition):

Mioduchowska, B. W. (1970). Salt effects on some physiological processes associated with seed germination. (Masters Thesis). University of Massachusetts. Retrieved from https://scholarworks.umass.edu/theses/3261

Chicago Manual of Style (16^th Edition):

Mioduchowska, Barbara W. “Salt effects on some physiological processes associated with seed germination.” 1970. Masters Thesis, University of Massachusetts. Accessed February 27, 2021. https://scholarworks.umass.edu/theses/3261.

MLA Handbook (7^th Edition):

Mioduchowska, Barbara W. “Salt effects on some physiological processes associated with seed germination.” 1970. Web. 27 Feb 2021.

Vancouver:

Mioduchowska BW. Salt effects on some physiological processes associated with seed germination. [Internet] [Masters thesis]. University of Massachusetts; 1970. [cited 2021 Feb 27]. Available from: https://scholarworks.umass.edu/theses/3261.

Council of Science Editors:

Mioduchowska BW. Salt effects on some physiological processes associated with seed germination. [Masters Thesis]. University of Massachusetts; 1970. Available from: https://scholarworks.umass.edu/theses/3261

Oregon State University

17. Liu, Po-Pu. Study of seed germination-associated genes using Arabidopsis enhancer-trap.

Degree: PhD, Horticulture, 2007, Oregon State University

URL: http://hdl.handle.net/1957/4333

► In mature Arabidopsis seeds, the testa (seed coat) is no longer a living tissue. Thus, major sites of gene expression in imbibed seeds are the… (more)

▼ In mature Arabidopsis seeds, the testa (seed coat) is no longer a living tissue. Thus, major sites of gene expression in imbibed seeds are the internal living tissues such as the embryo and the endosperm. To elucidate the molecular mechanisms of seed germination, the gene regulation in these two tissues during germination needs to be investigated. An enhancer-trap approach was used in this study to identify tissue- and stage-specific gene expression in seeds. The Arabidopsis enhancer-trap lines (Thomas Jack’s population, CS31086) from the Arabidopsis Biological Resource Center (ABRC) were screened for β-glucuronidase (GUS) expression in imbibed seeds in order to identify and characterize seed germination-associated genes. One hundred twenty one independent lines exhibiting diverse tissuespecific GUS expression patterns were isolated and kept as the Seed-GUSExpression enhancer-trap library. This library was donated to the ABRC (stock no. CS24362–CS24480), and is now available to the international seed research community. Ninety one lines showed GUS expression predominantly in the micropylar end of the seed (named BME [Blue Micropylar End] lines), indicating that the micropylar region of Arabidopsis seed is selectively activated during germination. One of these lines, BME3, had a T-DNA insertion site in the 5’ upstream region of a GATA-type zinc finger transcription factor gene (termed BME3-ZF). The BME3-ZF mRNA accumulated in seeds during cold stratification, suggesting its involvement in the physiological changes that accelerate the release of dormancy. BME3-ZF was expressed just prior to the expression of two GA biosynthesis genes, AtGA20ox3 and AtGA3ox1 which are also induced by cold stratification. The BME3-ZF knockout plants produced seeds exhibiting increased dormancy, which showed reduced response to cold stratification. The ungerminated knockout seeds exhibited testa rupture, but failed to penetrate the endosperm layer. Application of gibberellic acid (GA₃) rescued impaired germination of the knockout seeds without cold stratification, indicating that the normal GA signal transduction pathway is present in the knockout seeds. These results indicate BME3 GATA zinc finger protein is a positive regulator of Arabidopsis seed germination. In this study, we provide the proof-of-concept study for the Seed-GUS-Expression enhancer trap library and the detailed procedures to use a combination of gene-expression analysis of wild-type seeds and functional analysis using knockout plants for encouraging international collaborations to utilize this library which is a useful tool to identify the genes critical for seed germination. Advisors/Committee Members: Nonogaki, Hiroyuki (advisor), Brooks, Raymond M. (committee member).

Subjects/Keywords: seed germination; Germination

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APA (6^th Edition):

Liu, P. (2007). Study of seed germination-associated genes using Arabidopsis enhancer-trap. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/4333

Chicago Manual of Style (16^th Edition):

Liu, Po-Pu. “Study of seed germination-associated genes using Arabidopsis enhancer-trap.” 2007. Doctoral Dissertation, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/4333.

MLA Handbook (7^th Edition):

Liu, Po-Pu. “Study of seed germination-associated genes using Arabidopsis enhancer-trap.” 2007. Web. 27 Feb 2021.

Vancouver:

Liu P. Study of seed germination-associated genes using Arabidopsis enhancer-trap. [Internet] [Doctoral dissertation]. Oregon State University; 2007. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/4333.

Council of Science Editors:

Liu P. Study of seed germination-associated genes using Arabidopsis enhancer-trap. [Doctoral Dissertation]. Oregon State University; 2007. Available from: http://hdl.handle.net/1957/4333

University of Johannesburg

18. Sutcliffe, Michelle Anne. Physiological factors affecting the germination of Cyclopia seed.

Degree: 2014, University of Johannesburg

URL: http://hdl.handle.net/10210/10731

►

M.Sc. (Botany)

Seed dormancy in Cyclopia spp. (Fabaceae) was investigated using seed from the seeder C. subternata and the resprouter C. intermedia obtained from the… (more)

Subjects/Keywords: Legumes - Physiology; Germination

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APA (6^th Edition):

Sutcliffe, M. A. (2014). Physiological factors affecting the germination of Cyclopia seed. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/10731

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):

Sutcliffe, Michelle Anne. “Physiological factors affecting the germination of Cyclopia seed.” 2014. Thesis, University of Johannesburg. Accessed February 27, 2021. http://hdl.handle.net/10210/10731.

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

MLA Handbook (7^th Edition):

Sutcliffe, Michelle Anne. “Physiological factors affecting the germination of Cyclopia seed.” 2014. Web. 27 Feb 2021.

Vancouver:

Sutcliffe MA. Physiological factors affecting the germination of Cyclopia seed. [Internet] [Thesis]. University of Johannesburg; 2014. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10210/10731.

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

Council of Science Editors:

Sutcliffe MA. Physiological factors affecting the germination of Cyclopia seed. [Thesis]. University of Johannesburg; 2014. Available from: http://hdl.handle.net/10210/10731

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

Western Carolina University

19. Punsalan, April Pallette. The germination of Helonias bullata L. (Swamp pink) in response to flooded, saturated, and dry conditions.

Degree: 2013, Western Carolina University

URL: http://libres.uncg.edu/ir/listing.aspx?styp=ti&id=16634

► Poor sexual recruitment is a major conservation concern for the federally threatened, obligate wetland species Helonias bullata L. (swamp pink). Helonias predominately occurs in forested… (more)

▼ Poor sexual recruitment is a major conservation concern for the federally threatened, obligate wetland species Helonias bullata L. (swamp pink). Helonias predominately occurs in forested wetlands amongst hummock-hollow topography where water levels fluctuate spatially and temporally. This patchiness in moisture creates a high level of unpredictability in suitable microsites for germination and subsequent establishment. Germination percentages and rates were compared among seeds placed in flooded, saturated, and dry conditions in a controlled and natural environment for 1-35 days to determine how moisture conditions influence germination. In a controlled and natural environment, Helonias exhibited high final germination percentages (>50%) after all treatments, except dry conditions in the growth chamber. In addition, longer exposure to dry conditions both in a controlled and natural environment increased lag time before germination onset. Conversely, germination onset occurred earlier for seeds exposed to moisture treatments in a controlled (floating and submerged) and natural environment (stream margin, floating, and stream margin) for 3-30 days. For instance, after 13 days in a controlled environment, seeds floating (90%) and submerged (77%) germinated while in treatment. In the field, seeds floating (58%), submerged (3%), and in the stream margin (49%) germinated while in treatment after 20 days. Conversely, seeds "dry" (only exposed to rainwater) in the field after 20 days did not germinate while in treatment. Water dispersal may be an important part of Helonias regeneration niche because seeds exhibited high floating capability. Also, final germination percentages were significantly higher for seeds floating in comparison with seeds dry in the field. Overall, Helonias seeds exposed to moisture conditions (floating, submerged, and stream margin) germinated within a short time frame (10-30 days). Rapid germination when conditions are appropriate may be important for Helonias since it occurs in forested wetlands where spatial and temporal heterogeneity can create a narrow window for regeneration.; Federally Threatened, Forested Wetlands, Germination, Helonias bullata, Swamp Pink, Wetlands Advisors/Committee Members: Beverly Collins (advisor).

Subjects/Keywords: Helonias bullata; Germination

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APA (6^th Edition):

Punsalan, A. P. (2013). The germination of Helonias bullata L. (Swamp pink) in response to flooded, saturated, and dry conditions. (Masters Thesis). Western Carolina University. Retrieved from http://libres.uncg.edu/ir/listing.aspx?styp=ti&id=16634

Chicago Manual of Style (16^th Edition):

Punsalan, April Pallette. “The germination of Helonias bullata L. (Swamp pink) in response to flooded, saturated, and dry conditions.” 2013. Masters Thesis, Western Carolina University. Accessed February 27, 2021. http://libres.uncg.edu/ir/listing.aspx?styp=ti&id=16634.

MLA Handbook (7^th Edition):

Punsalan, April Pallette. “The germination of Helonias bullata L. (Swamp pink) in response to flooded, saturated, and dry conditions.” 2013. Web. 27 Feb 2021.

Vancouver:

Punsalan AP. The germination of Helonias bullata L. (Swamp pink) in response to flooded, saturated, and dry conditions. [Internet] [Masters thesis]. Western Carolina University; 2013. [cited 2021 Feb 27]. Available from: http://libres.uncg.edu/ir/listing.aspx?styp=ti&id=16634.

Council of Science Editors:

Punsalan AP. The germination of Helonias bullata L. (Swamp pink) in response to flooded, saturated, and dry conditions. [Masters Thesis]. Western Carolina University; 2013. Available from: http://libres.uncg.edu/ir/listing.aspx?styp=ti&id=16634

University of Tennessee – Knoxville

20. Wilson, Rebecca Lynn. Unique Functions of the Ethylene Receptors in Seed Germination.

Degree: 2014, University of Tennessee – Knoxville

URL: https://trace.tennessee.edu/utk_graddiss/3206

► The endogenous phytohormone ethylene regulates many agroeconomically important aspects of plant development, including germination, fruit ripening, leaf and flower senescence, and organ abscission, as well… (more)

Subjects/Keywords: Arabidopsis; Germination; Ethylene

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APA (6^th Edition):

Wilson, R. L. (2014). Unique Functions of the Ethylene Receptors in Seed Germination. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/3206

Chicago Manual of Style (16^th Edition):

Wilson, Rebecca Lynn. “Unique Functions of the Ethylene Receptors in Seed Germination.” 2014. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed February 27, 2021. https://trace.tennessee.edu/utk_graddiss/3206.

MLA Handbook (7^th Edition):

Wilson, Rebecca Lynn. “Unique Functions of the Ethylene Receptors in Seed Germination.” 2014. Web. 27 Feb 2021.

Vancouver:

Wilson RL. Unique Functions of the Ethylene Receptors in Seed Germination. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 2014. [cited 2021 Feb 27]. Available from: https://trace.tennessee.edu/utk_graddiss/3206.

Council of Science Editors:

Wilson RL. Unique Functions of the Ethylene Receptors in Seed Germination. [Doctoral Dissertation]. University of Tennessee – Knoxville; 2014. Available from: https://trace.tennessee.edu/utk_graddiss/3206

University of New South Wales

21. Kaczmarska, Kornelia. Effects of germination on flavour and nutritional properties of Lupin.

Degree: Chemical Engineering, 2018, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/60378 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:51955/SOURCE02?view=true

► Australian sweet lupin is an excellent protein and dietary fibre source, but is largely underutilised in the human diet. The barrier to greater consumption of… (more)

▼ Australian sweet lupin is an excellent protein and dietary fibre source, but is largely underutilised in the human diet. The barrier to greater consumption of lupin are oligosaccharides which cause bloating and flatulence and beany flavour which are not acceptable to the consumers. To overcome these limitations 72 h of germination was applied to lupin and the resultant germinated flours were tested for their nutritional and flavour properties. Soybean was also germinated and served as a control. Protein content of lupin and soybean was 37 %. Lupin seeds contained 5 % of starch, 1.3 % sugars, 15.6 % oligosaccharides, 16 % dietary fibre, 1 % soluble dietary fibre and 15 % insoluble dietary fibre. Soybean seeds had 3.5 % of starch, 3.6 % sugars, 15.8 % oligosaccharides, 7 % total dietary fibre, 0.1 % soluble dietary fibre and 7 % insoluble dietary fibre. Germination of lupin under both conditions significantly reduced oligosaccharides concentration to 0.6 % and 8.6 % under uncontrolled (room temp., 12 h of light and 12 h of darkness) and controlled (25°C, 93% relative humidity and 24 h of darkness) conditions, respectively. Total, soluble and insoluble dietary fibre, and starch content were not significantly (p≥0.05) affected by the germination of lupin under both conditions. Total sugars increased in germinated lupin under both conditions up to 3.8 %.Germination of soybean significantly reduced oligosaccharides to 4.8 % and 2.6 %, and starch to 2 % and 1.6 % under uncontrolled and controlled conditions, respectively. Total sugars reduced to 2.6 % in soybean germinated under controlled conditions. Total, soluble and insoluble dietary fibre were not significantly affected by the germination.The aroma profile of germinated lupin and soybean flours were characterised for the first time. Soybean had significantly higher concentrations of volatiles associated with beany flavour in legumes compared to lupin. Germination resulted in increased levels of many volatiles and sweet, woody, mushroom and baked aroma notes. Muffins incorporating germinated lupin and soybean flours had the highest concentrations of volatiles, followed by wheat muffins. Germination of lupin may be a successful strategy to increase acceptability and mask beany aroma of legumes. Advisors/Committee Members: Arcot, Jayashree, Chemical Engineering, Faculty of Engineering, UNSW, Frank, Damian, CSIRO.

Subjects/Keywords: Flavour; Lupin; Germination

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APA (6^th Edition):

Kaczmarska, K. (2018). Effects of germination on flavour and nutritional properties of Lupin. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/60378 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:51955/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Kaczmarska, Kornelia. “Effects of germination on flavour and nutritional properties of Lupin.” 2018. Doctoral Dissertation, University of New South Wales. Accessed February 27, 2021. http://handle.unsw.edu.au/1959.4/60378 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:51955/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Kaczmarska, Kornelia. “Effects of germination on flavour and nutritional properties of Lupin.” 2018. Web. 27 Feb 2021.

Vancouver:

Kaczmarska K. Effects of germination on flavour and nutritional properties of Lupin. [Internet] [Doctoral dissertation]. University of New South Wales; 2018. [cited 2021 Feb 27]. Available from: http://handle.unsw.edu.au/1959.4/60378 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:51955/SOURCE02?view=true.

Council of Science Editors:

Kaczmarska K. Effects of germination on flavour and nutritional properties of Lupin. [Doctoral Dissertation]. University of New South Wales; 2018. Available from: http://handle.unsw.edu.au/1959.4/60378 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:51955/SOURCE02?view=true

22. NC DOCKS at Western Carolina University; Punsalan, April Pallette. The germination of Helonias bullata L. (Swamp pink) in response to flooded, saturated, and dry conditions.

Degree: 2013, NC Docks

URL: http://libres.uncg.edu/ir/wcu/f/Punsalan2013.pdf

► Poor sexual recruitment is a major conservation concern for the federally threatened, obligate wetland species Helonias bullata L. (swamp pink). Helonias predominately occurs in forested… (more)

▼ Poor sexual recruitment is a major conservation concern for the federally threatened, obligate wetland species Helonias bullata L. (swamp pink). Helonias predominately occurs in forested wetlands amongst hummock-hollow topography where water levels fluctuate spatially and temporally. This patchiness in moisture creates a high level of unpredictability in suitable microsites for germination and subsequent establishment. Germination percentages and rates were compared among seeds placed in flooded, saturated, and dry conditions in a controlled and natural environment for 1-35 days to determine how moisture conditions influence germination. In a controlled and natural environment, Helonias exhibited high final germination percentages (>50%) after all treatments, except dry conditions in the growth chamber. In addition, longer exposure to dry conditions both in a controlled and natural environment increased lag time before germination onset. Conversely, germination onset occurred earlier for seeds exposed to moisture treatments in a controlled (floating and submerged) and natural environment (stream margin, floating, and stream margin) for 3-30 days. For instance, after 13 days in a controlled environment, seeds floating (90%) and submerged (77%) germinated while in treatment. In the field, seeds floating (58%), submerged (3%), and in the stream margin (49%) germinated while in treatment after 20 days. Conversely, seeds "dry" (only exposed to rainwater) in the field after 20 days did not germinate while in treatment. Water dispersal may be an important part of Helonias regeneration niche because seeds exhibited high floating capability. Also, final germination percentages were significantly higher for seeds floating in comparison with seeds dry in the field. Overall, Helonias seeds exposed to moisture conditions (floating, submerged, and stream margin) germinated within a short time frame (10-30 days). Rapid germination when conditions are appropriate may be important for Helonias since it occurs in forested wetlands where spatial and temporal heterogeneity can create a narrow window for regeneration.

Subjects/Keywords: Helonias bullata; Germination

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APA (6^th Edition):

NC DOCKS at Western Carolina University; Punsalan, A. P. (2013). The germination of Helonias bullata L. (Swamp pink) in response to flooded, saturated, and dry conditions. (Thesis). NC Docks. Retrieved from http://libres.uncg.edu/ir/wcu/f/Punsalan2013.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):

NC DOCKS at Western Carolina University; Punsalan, April Pallette. “The germination of Helonias bullata L. (Swamp pink) in response to flooded, saturated, and dry conditions.” 2013. Thesis, NC Docks. Accessed February 27, 2021. http://libres.uncg.edu/ir/wcu/f/Punsalan2013.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):

NC DOCKS at Western Carolina University; Punsalan, April Pallette. “The germination of Helonias bullata L. (Swamp pink) in response to flooded, saturated, and dry conditions.” 2013. Web. 27 Feb 2021.

Vancouver:

NC DOCKS at Western Carolina University; Punsalan AP. The germination of Helonias bullata L. (Swamp pink) in response to flooded, saturated, and dry conditions. [Internet] [Thesis]. NC Docks; 2013. [cited 2021 Feb 27]. Available from: http://libres.uncg.edu/ir/wcu/f/Punsalan2013.pdf.

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

Council of Science Editors:

NC DOCKS at Western Carolina University; Punsalan AP. The germination of Helonias bullata L. (Swamp pink) in response to flooded, saturated, and dry conditions. [Thesis]. NC Docks; 2013. Available from: http://libres.uncg.edu/ir/wcu/f/Punsalan2013.pdf

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

Universidade Federal de Mato Grosso do Sul

23. Alcântara, Nataline Valenzuela de. Condicionamento Osmótico em sementes de Corymbia citriodora (Hook.) K.D.Hill & L.A.S. Johnson .

Degree: 2012, Universidade Federal de Mato Grosso do Sul

URL: http://repositorio.cbc.ufms.br:8080/jspui/handle/123456789/2936

► O condicionamento das sementes é um tratamento que tem sido destinado a melhorar a germinação em hortaliças e também espécies florestais. Esse tratamento pode reduzir… (more)

Subjects/Keywords: Eucalyptus; Germinação; Sementes; Germination; Seeds

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APA (6^th Edition):

Alcântara, N. V. d. (2012). Condicionamento Osmótico em sementes de Corymbia citriodora (Hook.) K.D.Hill & L.A.S. Johnson . (Masters Thesis). Universidade Federal de Mato Grosso do Sul. Retrieved from http://repositorio.cbc.ufms.br:8080/jspui/handle/123456789/2936

Chicago Manual of Style (16^th Edition):

Alcântara, Nataline Valenzuela de. “Condicionamento Osmótico em sementes de Corymbia citriodora (Hook.) K.D.Hill & L.A.S. Johnson .” 2012. Masters Thesis, Universidade Federal de Mato Grosso do Sul. Accessed February 27, 2021. http://repositorio.cbc.ufms.br:8080/jspui/handle/123456789/2936.

MLA Handbook (7^th Edition):

Alcântara, Nataline Valenzuela de. “Condicionamento Osmótico em sementes de Corymbia citriodora (Hook.) K.D.Hill & L.A.S. Johnson .” 2012. Web. 27 Feb 2021.

Vancouver:

Alcântara NVd. Condicionamento Osmótico em sementes de Corymbia citriodora (Hook.) K.D.Hill & L.A.S. Johnson . [Internet] [Masters thesis]. Universidade Federal de Mato Grosso do Sul; 2012. [cited 2021 Feb 27]. Available from: http://repositorio.cbc.ufms.br:8080/jspui/handle/123456789/2936.

Council of Science Editors:

Alcântara NVd. Condicionamento Osmótico em sementes de Corymbia citriodora (Hook.) K.D.Hill & L.A.S. Johnson . [Masters Thesis]. Universidade Federal de Mato Grosso do Sul; 2012. Available from: http://repositorio.cbc.ufms.br:8080/jspui/handle/123456789/2936

Texas A&M University

24. Francis, Michael. Analyzing the Early Stages of Clostridium difficile Spore Germination.

Degree: PhD, Microbiology, 2017, Texas A&M University

URL: http://hdl.handle.net/1969.1/161401

► Infections caused by Clostridium difficile have increased steadily over the past several years. While studies on C. difficile virulence and physiology have been hindered, in… (more)

▼ Infections caused by Clostridium difficile have increased steadily over the past several years. While studies on C. difficile virulence and physiology have been hindered, in the past, by lack of genetic approaches and suitable animal models, newly developed technologies and animal models allow for improved experimental detail. One such advance was the generation of a mouse-model of C. difficile infection. This system was an important step forward in the analysis of the genetic requirements for colonization and infection. Equally important is understanding the differences that exist between mice and humans. One of these differences is the natural bile acid composition. Bile acid-mediated spore germination, a process whereby a dormant spore returns to active, vegetative growth, is an important step during C. difficile colonization. Mice produce several different bile acids that are not found in humans (muricholic acids) that have the potential to impact C. difficile spore germination. In order to understand potential effects of these different bile acids on C. difficile physiology, we characterized their effects on C. difficile spore germination and growth of vegetative cells. We found that the mouse-derived muricholic acids affect germination similarly to a previously-described inhibitor of germination, chenodeoxycholic acid. Chenodeoxycholic acid was previously demonstrated to be a competitive inhibitor of C. difficile spore germination, though with what the inhibitors or activators of germination interacted was unknown. However, the inhibitory property of chenodeoxycholic acid was used in a screen to identify potential germinant receptors and led to the identification of the germination-specific, pseudoprotease, CspC, as the bile acid germinant receptor. Based on the hypothesized location of CspC within the C. difficile spore (cortex rather than inner membrane), we hypothesized that there may be differences between the order of the stages of C. difficile and Bacillus subtilis spore germination. Germination in B. subtilis, a well-studied spore-former, is divided into two genetically separable stages. Stage I is characterized by the release of dipicolinic acid (DPA) from the spore core. Stage II is characterized by cortex degradation, and stage II can be activated by the DPA released during stage I. Thus, DPA release precedes cortex degradation during B. subtilis spore germination. To understand how the different location of the C. difficile germinant receptor affects the order of DPA release and cortex degradation, we first investigated the timing of DPA release and cortex degradation during C. difficile spore germination and found that cortex degradation precedes DPA release. Based on this result and work with SpoVAC in B. subtilis, we then investigated germination under high osmolyte concentrations. Because both cortex degradation and DPA release during C. difficile spore germination are dependent on the presence of the germinant receptor and cortex degradation, the release of DPA from the core may rely on the… Advisors/Committee Members: Sorg, Joseph (advisor), Smith, Jim (committee member), Sachs, Matthew (committee member), Straight, Paul (committee member).

Subjects/Keywords: Clostridium difficile; germination; spore; cortex

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

APA (6^th Edition):

Francis, M. (2017). Analyzing the Early Stages of Clostridium difficile Spore Germination. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/161401

Chicago Manual of Style (16^th Edition):

Francis, Michael. “Analyzing the Early Stages of Clostridium difficile Spore Germination.” 2017. Doctoral Dissertation, Texas A&M University. Accessed February 27, 2021. http://hdl.handle.net/1969.1/161401.

MLA Handbook (7^th Edition):

Francis, Michael. “Analyzing the Early Stages of Clostridium difficile Spore Germination.” 2017. Web. 27 Feb 2021.

Vancouver:

Francis M. Analyzing the Early Stages of Clostridium difficile Spore Germination. [Internet] [Doctoral dissertation]. Texas A&M University; 2017. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1969.1/161401.

Council of Science Editors:

Francis M. Analyzing the Early Stages of Clostridium difficile Spore Germination. [Doctoral Dissertation]. Texas A&M University; 2017. Available from: http://hdl.handle.net/1969.1/161401

Penn State University

25. McDavid, Kathryn Lyn. Utilizing Sedum Seeds as an Installation Method for Green Roofs Through Seed Enhancement Techniques.

Degree: 2012, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/13750

► There are many benefits to installing green roofs including reducing storm water runoff and the associated problems with overloaded sewage systems, especially in high density… (more)

▼ There are many benefits to installing green roofs including reducing storm water runoff and the associated problems with overloaded sewage systems, especially in high density urban areas. Green roofs also improve rain water and air quality and reduce the effect from urban heat islands by acting as thermal damper/evaporative coolers, which decrease heating and cooling costs and the subsequent pollution. Additionally, green roofs can extend the life of a roof and create natural habitats for birds and insects. They are also aesthetically pleasing which can improve people’s psychological state and productivity levels. One of the primary limitations to increased green roof installations in the United States is the cost, specifically, the high costs of labor to install the plants on the roof. The majority of green roofs today are installed using cuttings and/or plugs, nursery containers, vegetative mats, or modules. Each of these installation methods has advantages and disadvantages, but each requires a significant labor investment in growing and planting the roof. Due to the lack of their success on large scale green roofs, seeds are rarely used as an installation method, especially during the summer months; however, seed installations could potentially cost far less than other installation methods. Plant options for a green roof include various types of annuals, perennials, herbs, and succulents. Many factors influence plant selection for green roofs. Chief among them is a plant’s ability to withstand the harsh conditions found on a roof such as high temperatures and a coarse, quick-draining medium. Currently, Sedum species are the most commonly used plant for green roofs in the Eastern United States because they can tolerate and thrive in the aforementioned conditions. Seed germination requires optimal conditions that are seldom available on a green roof. In this dissertation, five Sedum species (Sedum acre, Sedum forsterianum, Sedum reflexum, Sedum selskianum, and Sedum spurium) were selected to test with seed enhancement techniques and hydroseeding. Without any previously published research available describing a successful seed enhancement technique, this study sought to create a seed priming technique using a water prime and a polyethylene glycol (PEG) prime. In addition, hydromulch was used in two of the studies conducted in 2011 to determine whether it held potential as a successful seed installation method. The five species were also tested for their viability over a period of time after being stored in cool, dry storage. The use of seed priming treatments in laboratory, greenhouse, and outdoor trials did not result in improved seed germination for most of the species. Although there was slightly higher germination in some of the primed seed species when compared to the control, the cost of the priming treatments would not be worth the small additional percentages gained in germination. Moreover, this research demonstrated that successful seed germination on a green roof is unlikely to… Advisors/Committee Members: Robert Berghage Jr., Dissertation Advisor/Co-Advisor, Ricky M Bates, Committee Member, Edmund Jay Holcomb, Committee Member, Robert David Shannon, Committee Member.

Subjects/Keywords: Germination; priming; seed maturation

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

APA (6^th Edition):

McDavid, K. L. (2012). Utilizing Sedum Seeds as an Installation Method for Green Roofs Through Seed Enhancement Techniques. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/13750

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):

McDavid, Kathryn Lyn. “Utilizing Sedum Seeds as an Installation Method for Green Roofs Through Seed Enhancement Techniques.” 2012. Thesis, Penn State University. Accessed February 27, 2021. https://submit-etda.libraries.psu.edu/catalog/13750.

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

MLA Handbook (7^th Edition):

McDavid, Kathryn Lyn. “Utilizing Sedum Seeds as an Installation Method for Green Roofs Through Seed Enhancement Techniques.” 2012. Web. 27 Feb 2021.

Vancouver:

McDavid KL. Utilizing Sedum Seeds as an Installation Method for Green Roofs Through Seed Enhancement Techniques. [Internet] [Thesis]. Penn State University; 2012. [cited 2021 Feb 27]. Available from: https://submit-etda.libraries.psu.edu/catalog/13750.

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

Council of Science Editors:

McDavid KL. Utilizing Sedum Seeds as an Installation Method for Green Roofs Through Seed Enhancement Techniques. [Thesis]. Penn State University; 2012. Available from: https://submit-etda.libraries.psu.edu/catalog/13750

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

North Carolina State University

26. Hebert, Cary Joseph. Seed Germination of Five Populations of Rhododendron vaseyi, Ploidy Manipulation of Rhododendron 'Fragrantissimum Improved' and the Effects of S-ABA on the Physiology and Marketability of Various Container-Grown Taxa During Short-Term Desiccation.

Degree: MS, Horticultural Science, 2010, North Carolina State University

URL: http://www.lib.ncsu.edu/resolver/1840.16/344

► Seeds of five populations of Rhododendron vaseyi A. Gray (pinkshell azalea), representing a sampling of the entire native distribution of the species, were germinated at… (more)

▼ Seeds of five populations of Rhododendron vaseyi A. Gray (pinkshell azalea), representing a sampling of the entire native distribution of the species, were germinated at 25C (77F) or an 8/16-hr thermoperiod of 30/20C (86/68F) with daily photoperiods at each temperature of 0 (total darkness), 8, 12, or 24-hr. The response to light and temperature of all populations was similar. Light was required for germination regardless of population or temperature. As photoperiod increased, germination increased for all populations with the alternating temperature partially compensating for the light requirement. The highest cumulative germination for all populations ranged from 51% to 67% and was achieved at 30/20C with a 24-hr photoperiod. These germination percentages, although not high, were due in part to rigorous grading of the seeds prior to initiation of the study suggesting seed viability of R. vaseyi is inherently low. Rhododendron Ã¢â‚¬ËœFragrantissimum ImprovedÃ¢â‚¬â„¢ is an attractive cultivar with showy, fragrant flowers, but has limited potential for breeding as it is a sterile wide hybrid. Protocols for in vitro regeneration and polyploid induction were developed for this cultivar as a means of vegetative propagation and to potentially restore fertility and enhance ornamental traits. Combinations of TDZ (0, 2, 10, 15 ÃŽÂ¼M) and NAA (0, 5, 10 ÃŽÂ¼M) were used to induce shoot regeneration from leaves. Shoot regeneration was optimized (96% of leaf segments produced shoots) using 8.8 ÃŽÂ¼M TDZ and 10 ÃŽÂ¼M NAA. To induce polyploidy, regenerative callus was treated with 7.5, 15, 30, 60 or 90 ÃŽÂ¼M concentrations of the mitotic inhibitor oryzalin for 1, 3, 5, 7 or 14 days, in various combinations. Oryzalin significantly affected survival and shoot regenerative capacity. A percentage of homogenous, tetraploid shoots were recovered from treatments of 30 ÃŽÂ¼M oryzalin for 1 (13%) and 3 (13%) days and 7.5 ÃŽÂ¼M oryzalin for 7 (20%) and 14 (7%) days. Reduced post harvest care of woody plant material in mass retail settings can decrease the number of days plants remain marketable. If plants are sold on consignment for growers, reduced sales can lead to poor profitability. This study investigated the effect of spray applications of s-abscisic acid (s-ABA) (ConTegoÃ¢â€žÂ¢, Valent Biosciences Corp.) to increase the number of days of marketability for various woody taxa in a simulated retail setting. In the first stage of the study, various well-watered container-grown taxa were treated with a spray application of either 0, 1000 or 2000 mgÃ¢Ë†â„¢L-1 s-ABA and water was withheld. Daily, desiccation symptoms were recorded to determine if plants had reached the critical wilting point and thus became unmarketable. Marketability was increased approximately 2-3 days for plants treated with 2000 mgÃ¢Ë†â„¢L-1 s-ABA treatment compared to nontreated plants. In the second stage, marketability and physiology of Ligustrum japonicum Ã¢â‚¬ËœRecurvifoliumÃ¢â‚¬â„¢ (wavy leaf privet) was monitored after plants were treated with spray applications… Advisors/Committee Members: Darren H. Touchell, Committee Member (advisor), Candace H. Haigler, Committee Member (advisor), Thomas G. Ranney, Committee Member (advisor), Frank A. Blazich, Committee Member (advisor), Anthony V. LeBude, Committee Chair (advisor).

Subjects/Keywords: desiccation tolerance; polyploidy; seed germination

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

APA (6^th Edition):

Hebert, C. J. (2010). Seed Germination of Five Populations of Rhododendron vaseyi, Ploidy Manipulation of Rhododendron 'Fragrantissimum Improved' and the Effects of S-ABA on the Physiology and Marketability of Various Container-Grown Taxa During Short-Term Desiccation. (Thesis). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/344

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):

Hebert, Cary Joseph. “Seed Germination of Five Populations of Rhododendron vaseyi, Ploidy Manipulation of Rhododendron 'Fragrantissimum Improved' and the Effects of S-ABA on the Physiology and Marketability of Various Container-Grown Taxa During Short-Term Desiccation.” 2010. Thesis, North Carolina State University. Accessed February 27, 2021. http://www.lib.ncsu.edu/resolver/1840.16/344.

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

MLA Handbook (7^th Edition):

Hebert, Cary Joseph. “Seed Germination of Five Populations of Rhododendron vaseyi, Ploidy Manipulation of Rhododendron 'Fragrantissimum Improved' and the Effects of S-ABA on the Physiology and Marketability of Various Container-Grown Taxa During Short-Term Desiccation.” 2010. Web. 27 Feb 2021.

Vancouver:

Hebert CJ. Seed Germination of Five Populations of Rhododendron vaseyi, Ploidy Manipulation of Rhododendron 'Fragrantissimum Improved' and the Effects of S-ABA on the Physiology and Marketability of Various Container-Grown Taxa During Short-Term Desiccation. [Internet] [Thesis]. North Carolina State University; 2010. [cited 2021 Feb 27]. Available from: http://www.lib.ncsu.edu/resolver/1840.16/344.

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

Council of Science Editors:

Hebert CJ. Seed Germination of Five Populations of Rhododendron vaseyi, Ploidy Manipulation of Rhododendron 'Fragrantissimum Improved' and the Effects of S-ABA on the Physiology and Marketability of Various Container-Grown Taxa During Short-Term Desiccation. [Thesis]. North Carolina State University; 2010. Available from: http://www.lib.ncsu.edu/resolver/1840.16/344

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

Iowa State University

27. Bieberdorf, Fredrick Wilhelm. A study of various methods for stimulating the germination of vegetable and flower seed.

Degree: 1927, Iowa State University

URL: https://lib.dr.iastate.edu/rtd/19232

Typescript (photocopy) Includes bibliography.

Subjects/Keywords: Germination; Seeds

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

APA (6^th Edition):

Bieberdorf, F. W. (1927). A study of various methods for stimulating the germination of vegetable and flower seed. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/rtd/19232

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):

Bieberdorf, Fredrick Wilhelm. “A study of various methods for stimulating the germination of vegetable and flower seed.” 1927. Thesis, Iowa State University. Accessed February 27, 2021. https://lib.dr.iastate.edu/rtd/19232.

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

MLA Handbook (7^th Edition):

Bieberdorf, Fredrick Wilhelm. “A study of various methods for stimulating the germination of vegetable and flower seed.” 1927. Web. 27 Feb 2021.

Vancouver:

Bieberdorf FW. A study of various methods for stimulating the germination of vegetable and flower seed. [Internet] [Thesis]. Iowa State University; 1927. [cited 2021 Feb 27]. Available from: https://lib.dr.iastate.edu/rtd/19232.

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

Council of Science Editors:

Bieberdorf FW. A study of various methods for stimulating the germination of vegetable and flower seed. [Thesis]. Iowa State University; 1927. Available from: https://lib.dr.iastate.edu/rtd/19232

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

University of Manitoba

28. Fernando, Veerahennedige Chamanthi Dilukshi. The role of DET1 in Arabidopsis thaliana seed germination responses on ABA, salt and osmotic stress conditions.

Degree: Biological Sciences, 2015, University of Manitoba

URL: http://hdl.handle.net/1993/31657

► Plant development is tightly linked to the environment. Environmental signals interact with endogenous hormonal cues, allowing plants to optimize their response to external stress. The… (more)

▼ Plant development is tightly linked to the environment. Environmental signals interact with endogenous hormonal cues, allowing plants to optimize their response to external stress. The plant hormone abscisic acid (ABA) is involved in a variety of stress tolerance mechanisms. These pathways have been widely studied in the model plant Arabidopsis thaliana. In this thesis I investigate the effect of light, ABA, and ABA mediated salt and osmotic stress on Arabidopsis seed germination, examining the role of light signaling component DE-ETIOLATED 1 (DET1) in these mechanisms. DET1 is a negative regulator of the light response promoting transcription factor ELONGATED HYPOCOTYL 5 (HY5). Thus, det1 mutants resemble light grown plants when grown in complete darkness. In this study, det1 mutants showed a variety of different germination phenotypes on control, ABA, and salt/osmotic stress conditions. Germination of det1 was sensitive to ABA but resistant to salt and osmotic stress. det1 ABA sensitive germination appeared to be due to an upregulation of a germination inhibiting transcription factor ABSCISIC ACID INSENSITIVE 5 (ABI5) by HY5. On the other hand, we propose that in salt/osmotic stress conditions, HY5 downregulates another transcription factor, ABSCISIC ACID BINDING FACTOR 3 (ABF3) which inhibits seed germination, thus det1 mutants exhibited resistant germination. In addition, DET1 exhibits genetic interactions with genes in the ABA signalling pathway during development. Both hy5 and abf1 mutants suppressed det1 phenotypes not only during vegetative development but also during germination, suggesting that a pathway whereby DET1 negatively regulates HY5, and HY5 positively regulates ABF1. Moreover components of distinct CULLIN4 DAMAGED DNA BINDING PROTEIN 1 (CUL4-DDB1) E3 ligase complexes both suppressed and enhanced det1 phenotypes. Finally, the det1 rapid water loss phenotype was independent of all genes considered except for ABF1. In conclusion, my PhD research shows DET1 plays an important role in Arabidopsis response to stress conditions and, by acting as a repressor of HY5, has a role in the integration of light and ABA signalling pathways. Advisors/Committee Members: Schroeder, Dana (Biological Sciences) (supervisor), Belmonte Mark (Biological Sciences) Renault, Sylvie (Biological Sciences) Ayele, Belay (Plant Sciences) Stone, Sophia (Biology Dalhousie University) (examiningcommittee).

Subjects/Keywords: Arabidopsis; Seed germination; DET1

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

APA (6^th Edition):

Fernando, V. C. D. (2015). The role of DET1 in Arabidopsis thaliana seed germination responses on ABA, salt and osmotic stress conditions. (Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/31657

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):

Fernando, Veerahennedige Chamanthi Dilukshi. “The role of DET1 in Arabidopsis thaliana seed germination responses on ABA, salt and osmotic stress conditions.” 2015. Thesis, University of Manitoba. Accessed February 27, 2021. http://hdl.handle.net/1993/31657.

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

MLA Handbook (7^th Edition):

Fernando, Veerahennedige Chamanthi Dilukshi. “The role of DET1 in Arabidopsis thaliana seed germination responses on ABA, salt and osmotic stress conditions.” 2015. Web. 27 Feb 2021.

Vancouver:

Fernando VCD. The role of DET1 in Arabidopsis thaliana seed germination responses on ABA, salt and osmotic stress conditions. [Internet] [Thesis]. University of Manitoba; 2015. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1993/31657.

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

Council of Science Editors:

Fernando VCD. The role of DET1 in Arabidopsis thaliana seed germination responses on ABA, salt and osmotic stress conditions. [Thesis]. University of Manitoba; 2015. Available from: http://hdl.handle.net/1993/31657

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

University of Manitoba

29. Kumar, Santosh. Molecular and Physiological Characterization of the Flowering Time Control Protein, HvFCA and its Role in ABA Signalling and Seed Germination.

Degree: Plant Science, 2010, University of Manitoba

URL: http://hdl.handle.net/1993/3899

► The RNA binding protein Flowering Time Control Locus A (FCA) regulates flowering in rice and Arabidopsis. The abscisic acid binding protein ABAP1 shares high sequence… (more)

▼ The RNA binding protein Flowering Time Control Locus A (FCA) regulates flowering in rice and Arabidopsis. The abscisic acid binding protein ABAP1 shares high sequence homology to FCA and was considered the FCA homologue in barley. The current study investigates the existence of ABAP1 as an independent gene product and also the cloning, characterization and functional significance of the gamma (γ) isoform of FCA from barley. Barley FCA protein showed higher sequence similarity to wheat and rice FCA compared to Arabidopsis FCA. It contains two RNA recognition motifs (RRMs), a glycine rich region at the N-terminal end, the WW domain and a poly-glutamine region immediately downstream of WW domain at the C-terminal. In developing barley embryos, FCA transcripts could be detected from 2 days after pollination (DAP) up to late maturity without any detectable change within these stages. FCA transcript levels declined as germination progressed in barley embryos and the FCA transcripts were retained for longer duration when germination was reduced with application of ABA. FCA also showed up-regulation by ABA and abiotic stresses in barley germinating seeds and seedlings. Transient co-expression of barley FCA or a truncated FCA (lacking RRM) with a maize VP1 promoter-GUS construct or a wheat Em gene promoter-GUS construct in barley aleurone layer protoplasts led to increased GUS activity in both cases. Adding ABA during the incubation enhanced the observed increase due to FCA expression. Similar effects of transient over-expression of FCA in barley embryos affected VP1. Barley FCA localized to the nucleus. This nuclear localization was due to the nuclear localization signal within the protein and not due to the RNA recognition motifs (RRMs) as the truncated FCA lacking RRMs also localized to the nucleus. Barley FCA did not restore the flowering phenotype in an Arabidopsis fca-1 mutant. In conclusion, I have shown that barley FCA is up-regulated by ABA and stress in embryos and affects ABA signalling in barley caryopses. The properties of FCA appear to have diverged between dicot and monocot systems. Advisors/Committee Members: Hill, Robert (Plant Science, University of Manitoba) (supervisor), Bewley, Derek (Botany, Guelph University)Stasolla, Claudio (Plant Science, University of Manitoba)Humphreys, Gavin (Cereal Research Center, Winnipeg)Schroeder, Dana (Biology, University of Manitoba) (examiningcommittee).

Subjects/Keywords: FCA; Germination; ABA; Flowering

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

APA (6^th Edition):

Kumar, S. (2010). Molecular and Physiological Characterization of the Flowering Time Control Protein, HvFCA and its Role in ABA Signalling and Seed Germination. (Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/3899

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):

Kumar, Santosh. “Molecular and Physiological Characterization of the Flowering Time Control Protein, HvFCA and its Role in ABA Signalling and Seed Germination.” 2010. Thesis, University of Manitoba. Accessed February 27, 2021. http://hdl.handle.net/1993/3899.

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

MLA Handbook (7^th Edition):

Kumar, Santosh. “Molecular and Physiological Characterization of the Flowering Time Control Protein, HvFCA and its Role in ABA Signalling and Seed Germination.” 2010. Web. 27 Feb 2021.

Vancouver:

Kumar S. Molecular and Physiological Characterization of the Flowering Time Control Protein, HvFCA and its Role in ABA Signalling and Seed Germination. [Internet] [Thesis]. University of Manitoba; 2010. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1993/3899.

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

Council of Science Editors:

Kumar S. Molecular and Physiological Characterization of the Flowering Time Control Protein, HvFCA and its Role in ABA Signalling and Seed Germination. [Thesis]. University of Manitoba; 2010. Available from: http://hdl.handle.net/1993/3899

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

Universitat Politècnica de València

30. Felipo Benavent, Amelia. Modulation of primary meristem activity by gibberellins through DELLA-TCP interaction in Arabidopsis .

Degree: 2017, Universitat Politècnica de València

URL: http://hdl.handle.net/10251/82237

► Plant development is an iterative process of organ formation from the primary meristems of the plant. Meristem activity is driven by dynamic transcriptional programs that… (more)

▼ Plant development is an iterative process of organ formation from the primary meristems of the plant. Meristem activity is driven by dynamic transcriptional programs that determine cell fate and identity as cells are displaced trough the meristematic tissue to initiate organ primordia. This regulatory network includes members of the TCP and KNOX family of transcription factors, and integrates external and intrinsic cues to efficiently adapt meristem activity to an ever-changing environment. However, how this integration occurs is not clear yet. DELLA proteins have been proposed to modulate transcriptional circuits in plants in response to environmental signals. Although they do not show DNA binding capacity, DELLAs regulate transcription through physical interaction with a large number of DNA-binding transcription factors and other transcriptional regulators. Given the observed interaction between DELLAs and several members of the TCP family of transcription factors, we have explored the relevance of this interaction in the regulation of primary meristems. We have confirmed that DELLAs interact with members of both Class I and Class II TCPs, and prevent their ability to regulate downstream targets. In the embryonic roots, DELLAs maintain a dormant meristem by impairing TCP14/15-dependent activation of cell-cycle genes. On the other hand, DELLAs participate in the establishment of the shoot apical meristem domain that keeps an indeterminate fate, through the control of KNAT1 gene expression by the TCP2/4-AS1 regulatory module. In summary, this Thesis provides a mechanistic framework to eventually explain environmental regulation of meristem activity.; El desarrollo de las plantas es un proceso iterativo de formación de órganos a partir de los meristemos primarios de la planta. La actividad meristemática está dirigida por programas transcripcionales dinámicos que determinan el destino y la identidad celular conforme las células son desplazadas a través del tejido meristemático para iniciar el primordio del órgano. Esta red regulatoria incluye miembros de las familias de factores de transcripción TCP y KNOX, e integra señales externas e intrínsecas para adaptar eficientemente la actividad meristemática al medio ambiente, siempre cambiante. Sin embargo, la manera en que esta integración ocurre no se ha desvelado todavía. Se ha propuesto que en plantas, las proteínas DELLA modulan los circuitos transcripcionales en respuesta a señales medioambientales. Aunque no muestran capacidad de unión al ADN, las DELLAs regulan la transcripción a través de su interacción física con un gran número de factores de transcripción capaces de unirse al ADN y otros reguladores transcripcionales. Dada la interacción observada entre las DELLA y varios miembros de la familia de factores de transcripción TCP, hemos explorado la relevancia de esta interacción en la regulación de los meristemos primarios. Hemos confirmado que las DELLA interaccionan con miembros de las dos clases de TCPs (Clase I y Clase II) e impiden su capacidad de regular… Advisors/Committee Members: Alabadí Diego, David (advisor), Blazquez Rodriguez, Miguel Angel (advisor), Rubio Somoza, Ignacio (advisor).

Subjects/Keywords: Arabidopsis; gibberellin; development; meristem; germination

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APA (6^th Edition):

Felipo Benavent, A. (2017). Modulation of primary meristem activity by gibberellins through DELLA-TCP interaction in Arabidopsis . (Doctoral Dissertation). Universitat Politècnica de València. Retrieved from http://hdl.handle.net/10251/82237

Chicago Manual of Style (16^th Edition):

Felipo Benavent, Amelia. “Modulation of primary meristem activity by gibberellins through DELLA-TCP interaction in Arabidopsis .” 2017. Doctoral Dissertation, Universitat Politècnica de València. Accessed February 27, 2021. http://hdl.handle.net/10251/82237.

MLA Handbook (7^th Edition):

Felipo Benavent, Amelia. “Modulation of primary meristem activity by gibberellins through DELLA-TCP interaction in Arabidopsis .” 2017. Web. 27 Feb 2021.

Vancouver:

Felipo Benavent A. Modulation of primary meristem activity by gibberellins through DELLA-TCP interaction in Arabidopsis . [Internet] [Doctoral dissertation]. Universitat Politècnica de València; 2017. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10251/82237.

Council of Science Editors:

Felipo Benavent A. Modulation of primary meristem activity by gibberellins through DELLA-TCP interaction in Arabidopsis . [Doctoral Dissertation]. Universitat Politècnica de València; 2017. Available from: http://hdl.handle.net/10251/82237

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