Adaptation of Cowpea (Vigna unguiculata (L.) Walp.) to Water Deficit during Vegetative and Reproductive Phases Using Physiological and Agronomic Characters

Cowpea (Vigna unguiculata (L.) Walp.) is an important commodity in West Africa. Its seeds are a valuable source of protein, vitamins, and income for humans. However, cowpea cultivation in Benin faces climatic constraints such as water stress caused by a prolonged absence of rain during the rainy sea...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Vincent Ezin, Artoche Gloria Christelle Tosse, Ifagbémi Bienvenue Chabi, Adam Ahanchede
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/d5fb32c95253499c9f6524bb1f9352f1
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d5fb32c95253499c9f6524bb1f9352f1
record_format	dspace
spelling	oai:doaj.org-article:d5fb32c95253499c9f6524bb1f9352f12021-11-29T00:56:02ZAdaptation of Cowpea (Vigna unguiculata (L.) Walp.) to Water Deficit during Vegetative and Reproductive Phases Using Physiological and Agronomic Characters1687-816710.1155/2021/9665312https://doaj.org/article/d5fb32c95253499c9f6524bb1f9352f12021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/9665312https://doaj.org/toc/1687-8167Cowpea (Vigna unguiculata (L.) Walp.) is an important commodity in West Africa. Its seeds are a valuable source of protein, vitamins, and income for humans. However, cowpea cultivation in Benin faces climatic constraints such as water stress caused by a prolonged absence of rain during the rainy season. Thus, this work aims at selecting cowpea varieties that can be cultivated in times of drought without compromising their yields and yield components. Twenty cowpea varieties were used, including 17 improved cultivars and 3 landraces. The experiment was conducted at the International Institute of Tropical Agriculture in Benin and laid at a split-plot design with four replicates. Each genotype was exposed to three water treatments: fully irrigated control, vegetative stress (when plants were 23 days old, drought stress was imposed for 30 days), and reproductive stress (once the first flowers were observed, water stress was imposed for 30 days). The results showed that photochemical yield, chlorophyll content, and relative water content were reduced under water deficit at the vegetative and reproductive stages. But there were no significant differences in proline content among cowpea varieties. Agronomic traits such as number of days to flowering, number of pods, yield per plant, the weight of 100 seeds, and harvest time showed significant differences under water stress. Overall, the landraces and cultivars including Kpodjiguegue, KVX 61-1, and IT 06-K-242-3 were the most tolerant to drought stress at the vegetative and reproductive stages and could potentially be used in breeding programs to improve drought tolerance of cowpeas.Vincent EzinArtoche Gloria Christelle TosseIfagbémi Bienvenue ChabiAdam AhanchedeHindawi LimitedarticleAgriculture (General)S1-972ENInternational Journal of Agronomy, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Agriculture (General) S1-972
spellingShingle	Agriculture (General) S1-972 Vincent Ezin Artoche Gloria Christelle Tosse Ifagbémi Bienvenue Chabi Adam Ahanchede Adaptation of Cowpea (Vigna unguiculata (L.) Walp.) to Water Deficit during Vegetative and Reproductive Phases Using Physiological and Agronomic Characters
description	Cowpea (Vigna unguiculata (L.) Walp.) is an important commodity in West Africa. Its seeds are a valuable source of protein, vitamins, and income for humans. However, cowpea cultivation in Benin faces climatic constraints such as water stress caused by a prolonged absence of rain during the rainy season. Thus, this work aims at selecting cowpea varieties that can be cultivated in times of drought without compromising their yields and yield components. Twenty cowpea varieties were used, including 17 improved cultivars and 3 landraces. The experiment was conducted at the International Institute of Tropical Agriculture in Benin and laid at a split-plot design with four replicates. Each genotype was exposed to three water treatments: fully irrigated control, vegetative stress (when plants were 23 days old, drought stress was imposed for 30 days), and reproductive stress (once the first flowers were observed, water stress was imposed for 30 days). The results showed that photochemical yield, chlorophyll content, and relative water content were reduced under water deficit at the vegetative and reproductive stages. But there were no significant differences in proline content among cowpea varieties. Agronomic traits such as number of days to flowering, number of pods, yield per plant, the weight of 100 seeds, and harvest time showed significant differences under water stress. Overall, the landraces and cultivars including Kpodjiguegue, KVX 61-1, and IT 06-K-242-3 were the most tolerant to drought stress at the vegetative and reproductive stages and could potentially be used in breeding programs to improve drought tolerance of cowpeas.
format	article
author	Vincent Ezin Artoche Gloria Christelle Tosse Ifagbémi Bienvenue Chabi Adam Ahanchede
author_facet	Vincent Ezin Artoche Gloria Christelle Tosse Ifagbémi Bienvenue Chabi Adam Ahanchede
author_sort	Vincent Ezin
title	Adaptation of Cowpea (Vigna unguiculata (L.) Walp.) to Water Deficit during Vegetative and Reproductive Phases Using Physiological and Agronomic Characters
title_short	Adaptation of Cowpea (Vigna unguiculata (L.) Walp.) to Water Deficit during Vegetative and Reproductive Phases Using Physiological and Agronomic Characters
title_full	Adaptation of Cowpea (Vigna unguiculata (L.) Walp.) to Water Deficit during Vegetative and Reproductive Phases Using Physiological and Agronomic Characters
title_fullStr	Adaptation of Cowpea (Vigna unguiculata (L.) Walp.) to Water Deficit during Vegetative and Reproductive Phases Using Physiological and Agronomic Characters
title_full_unstemmed	Adaptation of Cowpea (Vigna unguiculata (L.) Walp.) to Water Deficit during Vegetative and Reproductive Phases Using Physiological and Agronomic Characters
title_sort	adaptation of cowpea (vigna unguiculata (l.) walp.) to water deficit during vegetative and reproductive phases using physiological and agronomic characters
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/d5fb32c95253499c9f6524bb1f9352f1
work_keys_str_mv	AT vincentezin adaptationofcowpeavignaunguiculatalwalptowaterdeficitduringvegetativeandreproductivephasesusingphysiologicalandagronomiccharacters AT artochegloriachristelletosse adaptationofcowpeavignaunguiculatalwalptowaterdeficitduringvegetativeandreproductivephasesusingphysiologicalandagronomiccharacters AT ifagbemibienvenuechabi adaptationofcowpeavignaunguiculatalwalptowaterdeficitduringvegetativeandreproductivephasesusingphysiologicalandagronomiccharacters AT adamahanchede adaptationofcowpeavignaunguiculatalwalptowaterdeficitduringvegetativeandreproductivephasesusingphysiologicalandagronomiccharacters
_version_	1718407736762302464

Adaptation of Cowpea (Vigna unguiculata (L.) Walp.) to Water Deficit during Vegetative and Reproductive Phases Using Physiological and Agronomic Characters

Ejemplares similares