Author: Samuel Avendan̄o LagunaPublisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 80
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
Response of Cowpea (Vigna Unguiculata L.) (walp) Genotypes to Varied Levels of Fertilizers and Spacing on Growth and Yield
Author: NARASIMHAPPA KGrowth, Development and Yield of Cowpeas (Vigna Unguiculata (L.) Walp) in Response to Spacing, Nitrogen and Plant Growth Retardants
Author: Amadou Tijan JallowPublisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 448
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
Evaluation of Cowpea (Vigna Unguiculata L.) Genotypes for Growth, Yield and Protein Content for Vegetable Purpose
Author: S.N. DarshanGrowth 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
Symbiotic Effectiveness of Bradyrhizobia Inoculants
Author: Bekele Baraso BoePublisher: LAP Lambert Academic Publishing
ISBN: 9783659846731
Category :
Languages : en
Pages : 92
Book Description
Fertilizer is widely used to supply essential nutrients for plant growth and increase yield. In fact, yields of most crop plants increase linearly with the amount of fertilizer supplied (Loomis and Conner, 2004). Due to this fact, agricultural sectors strongly depend on fertilization with mineral nutrients. When crop plants are grown under intensive conditions, substantial amounts of nutrients are removed from the soil (Bala and Giller, 2001). Thus, to prevent deficiencies, nutrients can be added back to the soil in the form of fertilizers. Different types of fertilizers are available: inorganic fertilizers, organic fertilizers and bio-fertilizers. Among these, bio-fertilizers are the products containing living cells of different types of microorganisms which have ability to mobilize nutritionally important elements from non- usable to usable form through biological process (NIIR Board, 2004).
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.
Advances in Cowpea Research
Author: B. B. SinghPublisher: IITA
ISBN: 9789781311109
Category : Cowpea
Languages : en
Pages : 400
Book Description
Cowpea: taxonomy, genetics, and breeding, physiology and agronomy, diseases and parasitic weeds, insect pests, postharvest technology and utilization. Biotechnological applications.
Yield Stability in Cowpea as Influenced by Five Drought Resistance Mechanisms
Author: Steven Mark BarineauPublisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 274
Book Description