Crop Research Farm, C.S.A. University of Agriculture & Technology, Mauranipur, Jhansi 284 204.
1Present address: Project Coordinating Unit (Linseed), C.SA University of Agriculture & Technology, Kanpur 208 002.
Generation mean analysis was carried out to estimate the nature and magnitude of gene effects in sorghum [Sorghum bicolor (L.) Moench]. Inadequacy of simple additive-dominance model reflected the presence of epistatic interaction. Ail the four traits In majority of crosses were under the influence of dominance gene effects. Higher magnitude of dominance and dominance x dominance gene interactions could not be exploited in the crosses with duplicate epistasis as it minimizes the expression of heterosis. Reciprocal recurrent selection and/or biparental mating in early segregating generations can prove to be an effective approach for development of high yielding sorghum varieties.
Sorghum, gene effects, grain yield, scaling test, reciprocal recurrent selection
