Department of Plant Breeding and Genetics, Orissa University of Agriculture and Technology, Bhubaneswar - 751 003, India
Daillel cross analysis of nine genotypes of Indian mustard indicated involvement of both additive and non-additive genetic variances for the nine quantitative traits in both F1 and F2 generations. Preponderance of dominance genetic variances for days to maturity, primary braches/plant, secondary branches/plant, pods on main shoot in F1 and for all the nine characters in F2 was observed. For days to maturity, pods to main shoot and seed yield/plant, over dominance was exhibited in both F1 and F2. Recessive genes were predominant for pods on main shoot and seed yield/plant. The narrow-sense, heritability was low for pods on main shoot and seed yield/plant. The greater contribution of dominance and over-dominance indicated possibility of exploitation of heterosis. Bi-parental progeny selection of reciprocal recurrent selection has been suggested.
