Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

You searched for +publisher:"University of KwaZulu-Natal" +contributor:("Liang, Mark."). One record found.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters


University of KwaZulu-Natal

1. Abraha, Mizani Tesfay. Breeding tef [Eragrostis tef (Zucc.) trotter] for drought tolerance in Northern Ethiopia.

Degree: 2016, University of KwaZulu-Natal

Tef is the leading crop in Ethiopia for human food and animal feed. Worldwide tef is becoming a popular health food due to its gluten-free property. Productivity of tef is low in Ethiopia, with a mean of 1.6 t haˉ¹, which is well below potentially attainable yields of over 4 t haˉ¹. In the past the national tef improvement program has developed improved tef varieties. However, adoption of these varieties in the moisture-stressed tef growing areas has been limited because of their late maturity and the frequent occurrence of terminal drought. Development of tef varieties with high yield potential and adaptation to moisture stress is the overriding consideration in Ethiopia. Therefore, the overall goal of the study was to contribute to food security in Ethiopia, through improving the yield and productivity of tef. To achieve this, a research project was conducted aiming to develop drought tolerant tef varieties with farmer preferred traits, wide adaptation and better performance under moisture stress. The specific objectives of the study were: (1) to asses tef production constraints, management practices, input use, farmers’ trait preferences and breeding priorities in northern Ethiopia, Tigray Region; (2) to determine the genetic diversity of tef genotypes for drought tolerance using phenotypic and molecular markers, and to identify promising tef genotypes for improving moisture stress tolerance and grain yield; (3) to estimate the level of genetic variation, inheritance and trait association of tef genotypes; and (4) to determine gene action and inheritance of drought tolerance in tef and to identify better performing populations in moisture-stressed and non-stressed environments, and to advance these through the single seed descent method. Different research activities were conducted that contributed to these objectives. Participatory rural appraisal research was conducted in northern Ethiopia in four selected districts of three administrative Zones of the Tigray Region, namely, Laelay-Maichew, Medebay-Zana, Ahferom and Alamata. Primary data was collected from a total of 240 sampled farmers and secondary data was collected from the Bureau of Agriculture and Rural Development (BoARD). Data was coded and analysed using SPSS software. Results indicated that improved varieties were used by the majority of respondents in all districts and fertilizers in all except Alamata, where severe moisture stress dictated the choice of variety and reduced fertilizer application. High grain yield, increased panicle length and straw yield were the most important farmer-preferred traits. In Alamata District, early maturity was the third preferred trait while straw yield ranked fourth. Transplanting maximized the yield of tef, but a cost-benefit analysis showed that direct row sowing was more profitable. Moisture stress (reported by 60.4% respondents, weeds (61.2%), shoot fly (58.2%), lodging (53.3%) and seed shattering (60.8%) were rated as severe tef production constraints in the study areas. Farmers estimated that moisture stress… Advisors/Committee Members: Shimelis, Hussein A. (advisor), Liang, Mark. (advisor).

Subjects/Keywords: Combining ability.; Genetic diversity.; Moisture stress.; Tef.

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

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

APA (6th Edition):

Abraha, M. T. (2016). Breeding tef [Eragrostis tef (Zucc.) trotter] for drought tolerance in Northern Ethiopia. (Thesis). University of KwaZulu-Natal. Retrieved from http://hdl.handle.net/10413/14624

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

Chicago Manual of Style (16th Edition):

Abraha, Mizani Tesfay. “Breeding tef [Eragrostis tef (Zucc.) trotter] for drought tolerance in Northern Ethiopia.” 2016. Thesis, University of KwaZulu-Natal. Accessed July 03, 2020. http://hdl.handle.net/10413/14624.

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

MLA Handbook (7th Edition):

Abraha, Mizani Tesfay. “Breeding tef [Eragrostis tef (Zucc.) trotter] for drought tolerance in Northern Ethiopia.” 2016. Web. 03 Jul 2020.

Vancouver:

Abraha MT. Breeding tef [Eragrostis tef (Zucc.) trotter] for drought tolerance in Northern Ethiopia. [Internet] [Thesis]. University of KwaZulu-Natal; 2016. [cited 2020 Jul 03]. Available from: http://hdl.handle.net/10413/14624.

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

Council of Science Editors:

Abraha MT. Breeding tef [Eragrostis tef (Zucc.) trotter] for drought tolerance in Northern Ethiopia. [Thesis]. University of KwaZulu-Natal; 2016. Available from: http://hdl.handle.net/10413/14624

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

.