Heat Injury to Reproductive Development in Cowpea (Vigna Unguiculata [L.] Walp.) Under Ambient and Elevated Carbon Dioxide Concentrations PDF Download
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![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=w150-h200)
Author: Faisal Elgasim Ahmed
Publisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 242
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Book Description
![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 Ahmed
Publisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 242
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Book Description
Author: Randall Gordon Mutters
Publisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 180
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Book Description
![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 Warrag
Publisher:
ISBN:
Category : Cowpea
Languages : en
Pages : 232
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Book Description
Author: Jules Janick
Publisher: John Wiley & Sons
ISBN: 0470650001
Category : Science
Languages : en
Pages : 386
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Book Description
Part of a series which presents papers of topical interest relating to the breeding of plants important to agriculture and horticulture.
![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 Singh
Publisher:
ISBN:
Category : Cowpea
Languages : en
Pages :
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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.
Author: Dwayne R. Buxton
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 938
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Book Description
Sustainable agriculture. Environmental change. Biodiversity. Crop improvement. Physiology and molecular biology. Regulation of transgenic plants. Working group reports. Constitution of International Crop Science Congress. Report of continuing committee.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 860
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Book Description
Author: Tae Yoon Park
Publisher:
ISBN:
Category : Abutilon theophrasti
Languages : en
Pages : 342
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Book Description
Author:
Publisher:
ISBN:
Category : Plant breeding
Languages : en
Pages : 1238
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Book Description
Author: Luo Yiqi
Publisher: Elsevier
ISBN: 0080500714
Category : Science
Languages : en
Pages : 434
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Book Description
This book focuses on the interactive effects of environmental stresses with plant and ecosystem functions, especially with respect to changes in the abundance of carbon dioxide. The interaction of stresses with elevated carbon dioxide are presented from the cellular through whole plant ecosystem level. The book carefully considers not only the responses of the above-ground portion of the plant, but also emphasizes the critical role of below-ground (rhizosphere) components (e.g., roots, microbes, soil) in determining the nature and magnitude of these interactions.* Will rising CO2 alter the importance of environmental stress in natural and agricultural ecosystems?* Will environmental stress on plants reduce their capacity to remove CO2 from the atmosphere?* Are some stresses more important than others as we concern ourselves with global change?* Can we develop predictive models useful for scientists and policy-makers?* Where should future research efforts be focused?
