evaluation the relationships between grain yield and some of its related traits in a doubled-haploid bread wheat population

with increasing the world population, and needing to feed it, the yield enhancement of cereals crops is of the most important approaches meet this target, which is achieved via identifying the effective factors underlay yield of cereals like wheat. this experiment was conducted to evaluate the grain yield and its association with some contributed traits in a doubled-haploid (dh) wheat population comprising 100 dh lines deriving from across with maize, along with their parents (ck1 & es32) and 6 iranian local cultivars. traits under study were of grain yield per unit area, number of fertile tiller and total number of tillers per plant, number of node, plant height, flag leaf length and width, spike length, number of grains per spike and 100-grain weight. the results indicated significant (p