Diallel Analysis for Productive Tillering in Rice

The mode of inheritance and gene effect for productive tillering of 7x7 half diallel crosses of rice varieties was evaluated in the F1 and F2. The mode of inheritance analyzed for each combination separately was different and depended on the hybrid combination. Both, the additive and non-additive genes determined the expression of the trait. The regression analysis (Vr/Wr) showed an absence of interallelic interaction between the genes. In both hybrid generations over dominant inheritance was indicated by the regression line that cuts the Wr axis below the origin