Assessment of Cowpea (Vigna unguiculata (L.) Walp.) Mutant Lines for Drought Tolerance
Joint Authors
Gnankambary, Karidiatou
Sawadogo, Nerbéwendé
Diéni, Zakaria
Batieno, Téyouré Benoit Joseph
Tignegré, Jean Baptiste De Salle
Sawadogo, Mahamadou
Ouédraogo, Tinga Jeremy
Source
International Journal of Agronomy
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-10
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Cowpea provides the cheapest source of protein with an average range of protein content of 23–30%.
However, cowpea growth, development, and yield are greatly affected by drought during flowering and pod filling in the sub-Sahelian areas.
The best way to cope with this situation is to develop drought-tolerant cowpea varieties.
The objective of this study was therefore to evaluate cowpea lines developed through mutagenesis using gamma radiation to assess their reaction under optimal and water-stressed conditions.
The response of ten mutants-irradiated Moussa local was then evaluated in pots arranged in a split plot design in a screen house.
Two conditions were applied with optimum and water-stressed conditions.
The stress was applied for two weeks at flowering.
Two cowpea varieties Gorom local (drought-tolerant) and Moussa local (susceptible) nonirradiated were used as checks.
Thereafter, field trials under two different sowing dates were conducted to identify the best tolerant mutant line(s) using agromorphological and tolerance indicators.
The results indicated that mutant lines (MoussaM51-4P10 and MoussaM43-20P14) exhibited better stress tolerance and produced higher yield under water stress conditions.
Stress Tolerance Index (STI) was better to select cowpea mutant tolerant with higher yielding under moderate stress (SI = 35%).
The study confirmed that water stress has a negative effect on cowpea seeds production and on leaf chlorophyll content.
The high temperature during experiment increased water stress effect mainly on non-irradiated checks (Gorom local and Moussa local).
American Psychological Association (APA)
Gnankambary, Karidiatou& Sawadogo, Nerbéwendé& Diéni, Zakaria& Batieno, Téyouré Benoit Joseph& Tignegré, Jean Baptiste De Salle& Sawadogo, Mahamadou…[et al.]. 2020. Assessment of Cowpea (Vigna unguiculata (L.) Walp.) Mutant Lines for Drought Tolerance. International Journal of Agronomy،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1167451
Modern Language Association (MLA)
Gnankambary, Karidiatou…[et al.]. Assessment of Cowpea (Vigna unguiculata (L.) Walp.) Mutant Lines for Drought Tolerance. International Journal of Agronomy No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1167451
American Medical Association (AMA)
Gnankambary, Karidiatou& Sawadogo, Nerbéwendé& Diéni, Zakaria& Batieno, Téyouré Benoit Joseph& Tignegré, Jean Baptiste De Salle& Sawadogo, Mahamadou…[et al.]. Assessment of Cowpea (Vigna unguiculata (L.) Walp.) Mutant Lines for Drought Tolerance. International Journal of Agronomy. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1167451
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1167451