عنوان مقاله [English]
نویسنده [English]چکیده [English]
Drought stress is the main limiting factor in the arid and semi- arid region of the world. In order to evaluate and determine of drought stress relationship between agronomic characteristics and grain yield, an experiment was conducted in research field of University of Tehran in Karaj in 2016.In this study 102 genotypes of Bean (Phaseolus vulgaris .L) were evaluated in an augment design with three replication along with four control under irrigated and drought stress conditions. Result of simple correlation coefficient analysis indicated a significant positive correlation between grain yield with pod no and pod weight for both normal and stress condition. Stepwise regression analysis showed that pod weight was higher importance, among other grain yield component for normal condition, in determination of grain yield. Whereas in stress condition, pod number and pod weight were the most important. Factor analysis determined five and four factors under normal and drought stress condition that accounted for 77% and 70% of total observed variations of grain yield. Based on result of by-plot analysis, 70, 60 and 100 genotypes were recognized as high- yielding genotypes under stress conditions.