In a 15 x 15 diallel set of wheat hybrids although substantially large heterosis over better parent was observed for grain yield, the standard (economic) heterosis (i.e. percentage increase over the best check variety HD 2189) was not of very high magnitude. Majority of crosses exhibited standard heterosis less than 80%, except the crosses NI5439 x UP215 and Sonalika x Mukta, which exhibited 174% and 135% standard heterosis, respectively.
Heterosis, wheat, diallel
