Author(s):

PB Kardile, MM Burondkar and SG Bhave

Abstract: Present research was conducted to assess the performance of four cowpea genotypes (Fodder cowpea-1, konkansadabahar, ACP-109, PCP-9702-1) under moisture stress conditions, at research farm department of Agricutural Botany COA, Dapoli, DBSKKV, Dapoli (M.S.). The chlorophyll content showed considerable amount of variability. It was obsereved that chlorophyll content increased with advancing age of plants, upto 75 DAS after that it decreased. at 60DAS genotype konkansadabahar followed by ACP-109 showed less reduction in chlorophyll content under severe stressed (26.41%) and (31.93%) condition, than two other genotypes studied, indicated that genotype konkansadabahar and ACP-109 recorded comparably higher photosynthetic rate along with lower transpiration rate which might have resulted in higher dry matter production and yield of cowpea. The proline accumulation was higher under water stressed condition than irrigated condition. Further genotype konkansadabahar and fodder cowpea-1 accumulated (56.7%) and (48.3%) more proline under severe stressed condition as against zero stressed condition than two other genotypes studied. In other words inherently drought tolerant genotypes showed tendancy to generate great amount of proline under water stress condition

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