*Present Address-Assistant
Percents, F1, F2, BC1, and BC2 generations of 6 crosses of tomato (Licoperscion esculentum) were used for the estimation of gene effects for 6 quantitative characters, namely, plant height, number of branches per plant, fruit weight and yield per plant. Most of the crosses were observed to have interacting effects for all the characters. Majority of the interacting crosses showed the presence of duplicate epistasis and contribution of dominance (h) and dominance x dominance (l) components of genetic variance were mainly observed for all the characters. In the non-interacting crosses which were present for days to flowing and fruit weight, the role of dominance (h) was mainly pronounced. These results suggest that substantial gain may be achieved through herotosis breeding in tomato.
