Genetic Architecture for Phenological and Structural Traits in Vigna radiata L. Wilczek

Ten diverse (Vigna radiata L. Wilczek) genotypes of mungbean were crossed in a diallel fashion, excluding reciprocals, to produce 45 F₁’S, F₁ and F₂ generations along with their parents were evaluated during Kharif 2013. Predominant role of non–additive gene action was observed for the inheritance of days to flower initiation, days of reproductive period, daysto maturity, plant height and number of branches per plant in F₁ and F₂ generations. Average degree of dominance revealed presence of over-dominance for most of the traits in both the generations. Thus K851, T44, PDM11 and Pant M1 were good general combiners for all traits in both generations. The crosses T 44 x Pant M1, ML 267 x ML 337, K 851 x Pant M1, G 65 x ML 337, G 65x ML 267 and K 851 x T 44 were common crosses in both the generations with significant sca effects in desirable direction for day to flowering initiation, days of reproductive period, days to maturity, plant height and number of branches per plant.