Volume : III, Issue : X, October - 2013

Osmotic Adjustment and Yield of Cowpea in Response to Drought Stress and Chitosan

Farouk S, Amira M. S. Abdul Qados

Abstract :

Drought is the most significant ecological components limiting the growth and productivity of field crops. Chitosan is considered ameliorators of drought stress and could evolve drought tolerance in crop plants. To ascertain the function of chitosan in inducing osmotic adjustment in drought stressed cowpea leaf in terms of solutes accumulation, leaf water status, leaf area and yield components.Drought stress causes a significant reduction in osmotic potential and relative water content. On the other hand, osmotic adjustment were significantly increased due to inducing increasing the higher accumulation of osmolytes which directs to declining leaf area and yield characters. Application of chitosan, nullify the harmful effects of drought on leaf area and yield due to increasing osmolyte accumulation, sustaining osmotic potential and osmotic adjustment.In conclusion, cowpea plants responded to drought stress by increasing the osmolytes accumulation, which further increased with chitosan application and assisted in maintaining the osmotic balance.

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

Farouk S, Amira M.S. Abdul Qados / Osmotic Adjustment and Yield of Cowpea in Response to Drought Stress and Chitosan / Indian Journal of Applied Research, Vol.3, Issue.10 October 2013

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