Agricultural Research Journal

A significant variability was recorded in twenty genotypes of rice (Oryza sativa L.) when grown under stress environment, experiencing high temperature during anthesis. The analysis of variance revealed that plant height, flag leaf area, ear bearing tillers, peduncle length and thousand grain weight of the genotypes were significantly (p < 0.05) affected by growing environment, genotypes as well as interaction between genotypes and growing environment. The number of days to 50% flowering was significantly increased under stress. In correlation analysis, yield was significantly and positively correlated with flag leaf area and thousand grain weight and negatively correlated with plant height. The yield was found to have a non significant correlation with peduncle length and number of days to 50% flowering.