The reaction of different white bean cultivars under drought stress condition in Miyaneh region

This study was conducted in a split plot based on a completely randomized block design with three replications in Research Farm of Islamic Azad University to investigate the reaction of white bean cultivars under drought stress condition. Drought stress condition consisted of two irrigation intervals including 5 and 10 days as the main plots and five cultivars of white beans including Marmar, Yas, Sadaf, Daneshkadeh and 11805 were placed in subplots. Limited irrigation condition caused significant reduction in most of the studied traits and the yield of all studied cultivars decreased significantly. Among the studied cultivars, Sadaf, Daneshkadeh, and 11805 had the highest yield and were identified as the cultivars susceptible to stress. There was a positive and significant correlation between the indices of stress susceptibility, geometric mean productivity and stress tolerance index under optimum and limited irrigation and their yield. Therefore, cultivars with high geometric mean productivity and stress tolerance index and low stress susceptibility index were identified as cultivars tolerant to limited irrigation.