The triple test cross analysis was applied to 324 progenies produced from three wheat crosses (HD 2009 x WH 147, NP 876x HD 2160, and Sonalika x WL 711) to study the effect of epistasis on the estimates of additive, dominance, additive gene effects x sowing time, and dominance gene effects x sowing time for plant height, effective tillers/plant, grains/ear, 100-grain weight and grain yield/plant. The additive and dominance components did not show large differences In the presence and absence of epistasis. Whereas additive gene effects were more sensitive to environmental change than the dominance gene effects, dominance gene effects X sowing time interactions showed greater bias due to the presence of epistasis than the additive gene effects X sowing time interactions.
Wheat, additive, dominance, interactions, gene effects
