The gene action was ascertained by conducting 6 x 6 diallel cross analysis in all the possible combinations of maize inbred lines. Number of ears plant"! was found to he controlled by over-dominance type of gene action while number of kernel rows ear'] l00-grain weight and grain yield plant'! were controlled by additive type of gene action. Epistasis was observed for number of ears plane 1 and grain yield planr",
