![Reproductive Responses of Cowpea (Vigna Unguiculata [L.] Walp.) to Heat Stress PDF](https://books.google.com/books/content/images/frontcover/QtG_tf6nfcgC?fife=w150-h200)
Author: Mohamed Osman Abdel Rahman WarragPublisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 232
Book Description
Reproductive Responses of Cowpea (Vigna Unguiculata [L.] Walp.) to Heat Stress
![Reproductive Responses of Cowpea (Vigna Unguiculata [L.] Walp.) to Heat Stress PDF](https://books.google.com/books/content/images/frontcover/QtG_tf6nfcgC?fife=w80-h100)
Author: Mohamed Osman Abdel Rahman WarragPublisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 232
Book Description
Heat Injury to Reproductive Development in Cowpea (Vigna Unguiculata [L.] Walp.) Under Ambient and Elevated Carbon Dioxide Concentrations
![Heat Injury to Reproductive Development in Cowpea (Vigna Unguiculata [L.] Walp.) Under Ambient and Elevated Carbon Dioxide Concentrations PDF](https://books.google.com/books/content/images/frontcover/g5tZuvxNA-sC?fife=w80-h100)
Author: Faisal Elgasim AhmedPublisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 242
Book Description
Reproductive Physiology of Cowpea (Vigna Unguiculata (L.) Walp.) at High Temperatures with Different Photoperiods
Author: Randall Gordon MuttersPublisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 180
Book Description
Reproductive Processes in Cowpea, Vigna Unguiculata (L.) (Walp.) and Their Implications to Breeding Problems
Author: Tolulope Afolabi Oluseyi LadeindePublisher:
ISBN:
Category :
Languages : en
Pages : 212
Book Description
Yield and Growth Responses of Cowpea (Vigna Unguiculata (L.) Walp.) Genotypes to Fertilization
Author: Samuel Avendan̄o LagunaPublisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 80
Book Description
Fertilizer Responses in Cowpea (Vigna Unguiculata (L) Walp)
Author: McKinley PoselyPublisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 146
Book Description
Developing Screening Tools for Abiotic Stresses Using Cowpea [Vigna Unguiculata (L.) Walp.] as a Model Crop
![Developing Screening Tools for Abiotic Stresses Using Cowpea [Vigna Unguiculata (L.) Walp.] as a Model Crop PDF](https://books.google.com/books/content/images/frontcover/yD-KswEACAAJ?fife=w80-h100)
Author: Shardendu Kumar SinghPublisher:
ISBN:
Category : Cowpea
Languages : en
Pages :
Book Description
Abiotic stresses cause extensive loss to agriculture production worldwide. Cowpea is an important legume crop grown widely in tropical and subtropical regions where high temperature, ultraviolet-B (UVB) radiation and drought are the common stress factors limiting production. Various vegetative, physiological, biochemical and reproductive plant attributes were assessed under a range of UVB radiation levels in Experiment I and in a combination with two doses of each carbon dioxide concentration [CO2], temperature, and UVB radiation and their interactions in Experiment II by using six cowpea genotypes and sunlit plant growth chambers. The dynamics of photosynthesis and fluorescence processes were assessed in 15 cowpea genotypes under drought condition in Experiment III in pot-grown plants under sunlit conditions. A distinct response pattern was not observed in cowpea in response to UVB radiation from 0 to 15 kJ; however, plants grown under elevated UVB showed reduced photosynthesis resulting in shorter plants and produced smaller flowers and lower seed yield. Increased phenolic compounds appeared to be a defense response to UVB radiation. The growth enhancements observed by doubling of [CO2] were not observed when plants were grown in combination with elevated UVB or temperature which also showed the most detrimental effects on plant growth and seed yield. Results from Experiment I and II revealed that cowpea reproductive traits were highly sensitive to abiotic stresses compared to the vegetative growth and development. A total stress response index (TSRI) technique, derived from all vegetative and reproductive parameters, was used to screen genotypes for their stress tolerance to UVB or combination of stresses. An increase in water use efficiency while maintaining higher rate of photosynthesis was an important drought tolerance mechanism in tolerant cowpea genotypes. Using principal component analysis technique, four groups of the genotypes were identified for their drought tolerance. Evaluating same genotypes across stress conditions revealed that no single genotype has the absolute tolerance characters to all stress conditions. The identified diversity for abiotic stress tolerance among cowpea genotypes and associated traits can be used to develop tolerant genotypes suitable for an agro-ecological niche though traditional breeding or genetic engineering methods.
Morphological and Physiological Responses of Cowpea (Vigna Unguiculata (L) Walp.) Cultivars to Induced Water Stress and Phosphorus Nutrition
Author: Rogério Marcos ChiulelePublisher:
ISBN:
Category : Cowpea
Languages : en
Pages :
Book Description
Response of Cowpea (Vigna Unguiculata (L.) Walp) to Plant Geometry, Fertility Levels and Methods of Weed Control in Summer Season
Author: Rajender SinghGrowth and Yield Responses of Cowpeas (Vigna Unguiculata L.) to Water Stress and Defoliation
Author: Zinhle NtombelaPublisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 228
Book Description