The effect of water stress on some traits of barley double haploid lines

In order to compare barley double haploid lines from agricultural and morphologic characteristic aspects and recognition of probable lines, 45 double haploid lines of grain were experimented in the form of random complete blocks with 3 frequencies under two normal irrigation and low water stress conditions at mahabad Agricultural researches station from 2011-2012. Results obtained from combined variance analysis of two experience case miles from all examined characteristics aspects, expect, for bush height. In regression analysis with step by step method. Grain performance under normal irrigation conditions from aspects such as number of grains in spike, straw performance, and each grain weight entered in final model that under normal irrigation and low water stress condition, has three performance such as straw, grain and the number of grain in spike as influence variable to grain performance entered to model. So the performance in two conditions showed that has the most positive and direct effect to grain performance.