The evaluation of various agronomic traits of Red & Chitti bean genotypes under well- watered and drought stress conditions
Journal Title: International Journal of Farming and Allied Sciences - Year 2014, Vol 3, Issue 4
Abstract
Water stress is considered as global concern in agricultural development. In order to investigate the influence of drought stress on proline, compatible solutes as two main herbal compatibility mechanisms and different agronomic traits on bean genotypes in Agricultural Research station located in Shiraz Islamic Azad University, Shiraz, Fars, Iran during summer 2013.The experimental design was split plot based on Randomized Complete Blocks (RCBD) in triplicates. In addition, water treatments (well-watered & drought stress) as main factor were induced and six bean genotypes included: three Red Bean(KS31169, D81083,Goli) and three Chitti Bean (KS21486, KS21488, G14088) as secondary factor were considered. The results demonstrated that D81083 genotype had the highest 100- grain weight and G14088 genotype had the lowest 100- grain weight under drought stress condition. Results of means comparison revealed that highest seed yield per plant- 1 , was relating to KS31169 genotype. It should be noted that KS21488 genotype had the highest RWC (%) under well-watered treatment. Results indicated that maximum chlorophyll index were belongs to KS31169 and Goli genotypes under drought stress environment. Results was illustrated that KS31169 genotype had maximum content of proline under drought stress condition. On the other hand, results exhibited that D81083 genotype had maximum soluble sugar content under well-watered condition. According to results of means comparisons Goli genotype had maximum content of potassium ion content under water stress treatment. As a conclusion, Accumulation of proline and Soluble sugars are considered as osmotic adjustment in response to drought stress condition. Further field research might shed more light on sensitivity of bean cultivars to water stress levels with the aim of crop diversification for dryland areas in Iran, where adequate moisture supply is limiting.
Authors and Affiliations
Masoud Zadehbagheri
Keywords
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