Generation mean analysis was carried out using five parameter models on wide cross combination with five generations i.e. parents, F1s, F2s, and F3s selected from inert-varietal breeding experiment. The aim of study was to investigate the mode of gene actions involved in the inheritance of quantitative traits viz., number of fruits/plant, polar and equatorial circumference of fruit (cm), flesh thickness (cm), fruit weight (kg), total soluble solid (%), pedicel length (cm) and yield/plant (kg). C and D scaling test showed the presence of non allelic interaction in the inheritance for all the traits except for total soluble solids which showed non interacting mode of inheritance. Dominance effect was found pronounced for most of the traits except days to polar circumference of fruit, flesh thickness, pedicel length and fruit weight where additive effect was found prevalent in equatorial circumference of fruit, TSS, number of fruits per plant and yield per plant magnitude. Among the interaction effects dominance x dominance was predominant over additive x additive for all traits. Substantial amount of heterosis in F2 and F3 progenies among important traits in desirable direction were observed. Fruit flesh color and striped epicarp were found as dominant traits tested as qualitative characters in the population.

Key Words: GMA, Gene effect, Melon, Yield