Genetic analysis of grain yield related traits in barley (hordeum vulgare l.) Afzal/cwb cross

To study the inheritance of grain yield related traits in barley, F1, F2 and F3 generations derived from Afzal x Cwb cross, along with parents were planted in a randomized complete block design with three replications. Spike weight, spike length, number of spikelets per spike, awn length, thousand grain weight, grains per spike and straw yield per spike in different generations were recorded. Generation mean analysis was performed for all the traits. The results showed that additive, dominance and epistasis effects were significant for all the traits except awn length. Results also indicated that dominace variance was the most important in inheritance of all the traits. Average broadsense heritabilities were between 58%-82% for all the traits. The estimated number of genes for the traits were ranged from one to five.