To analyze the association between grain yield and agronomic traits in bread wheat under water deficit, an experiment was conducted using eight recombinant inbred lines and their parental lines (Roshan & Super Head) based on split-plot arranged in a randomized complete block design (RCBD) with three replications under three irrigation levels (80, 120 and 160 mm evaporation from the pan). Correlation analysis revealed significant positive relationships between grain yield and harvest index as well as peduncle length. Path analysis using stepwise regression based on average of irrigation factors indicated that number of grain in spike, thousand grain weight, number of fertile tiller and peduncle length were the most effective components on grain yield. Therefore, these traits could be used as important indices for selecting high yielding bread wheat genotypes.
