Heterosis for Improvement of Various Agronomic Traits in Bread Wheat

摘要

Heterosis studies in 12 crosses of bread wheat involving nine varieties (Uqab-2000, Punjab-96, Inqilab-91, Shafaq-06-, Seher-06, Lasani-08, Achyuta, Oasis and AS-2002) and an advanced line (V-03094) were carried out at the Wheat Research Institute, Faisalabad. Highly significant genetic variability was present in the experimental material for the traits under study. Most of the crosses showed significant heterosis over mid- and better-parents for various characters. The Oasis/Punjab-96 cross depictedhighly significant and the maximum heterosis and heterobeltiosis for grain yield/plant, spike length, number of spikelets/spike and flag leaf area. However, maximum 1000-grain weight and number of tillers/plant were produced from the cross V-03094/Uqab-2000. These crosses will be considered for finding transgressive segregants in advanced segregating generations for the evolution of wheat varieties with high yield potential.