Water Stress Tolerance of Common Bean (Phaseolus Vulgaris L.)

Water Stress Tolerance of Common Bean (Phaseolus Vulgaris L.)

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Language English
Contributor(s) Apurba Kanti Choudhury
Binding Paperback
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Overview: Water Stress Tolerance of Common Bean

Drought is a world wide production constraint of Common bean. The effective approach in breeding for drought tolerance in common bean would be based first on selection for high geometric yield followed by high-yielding individuals for low to moderate levels of the drought susceptibility index. The tolerant genotypes had less affected leaf area and shoot dry weight, greater root weights and higher root/shoot ratios and less degradation chlorophyll contents than the drought susceptible genotypes. The yield reduction was caused by water stress attributed mainly due to reduction in pods plant-1. The high relative water content, minimal midday drop of relative water content, lower water uptake capacity and low rate of transpiration may probably enable plant to maintain a high water content in leaf cells under drought condition. The drought avoidance included the development of better root characteristics, an efficient stomatal closure and paraheliotropic leaf movement that altogether regulated water balances more in the tolerant genotypes. The mechanism of drought tolerance included osmotic adjustment and protection of membrane system.

Features: Water Stress Tolerance of Common Bean

  • Science
Product Details
Language English
Publication Date January 3, 2011
Publisher LAP Lambert Academic Publishing
Contributor(s) Apurba Kanti Choudhury
Binding Paperback
Page Count 196
ISBN 10 3843386978
ISBN 13 9783843386975
Dimensions and Weight
Product Weight 294.8 grams
Product Dimensions 15 cm x 1.1 cm x 22 cm

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About the Author

Apurba Kanti Choudhury, PhD: Studied Stress Physiology under Agronomy Department at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Bangladesh. Twenty years research experience,Senior Scientific Officer, On-Farm Research Division, Bangladesh Agricultural Research Institute.
 

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