Biometrical relationship between F_1 potential and genetic distance in full diallel population of egg plant (Solanum melogena L.)

摘要

Distance analysis was done to find out the generalized distance among six parents and their 30 F_1 hybrids of eggplant. Significant differences among the parents and hybrid combinations revealed the existence of considerable diversity among the population tested. As many as ten clusters have been formed and six parents fell in five clusters. The canonical vectors needed to be considered to account for around eighty percent of variation. The infra-cluster distance was maximum in cluster IX (179.79) inwhich two hybrid combinations were found, i.e. 56.62 and 59.08 respectively in them. The inter-cluster distance was maximum in cluster V and X (232.16) followed by cluster VIII and cluster IX (172.45), cluster I and X (154.44) and cluster VII and X (143.99). Three hybrids fell in cluster V and X, four in VIM and IX, three in I and X and four in VIM and X. The standardized potence ranged from 61.34 to 130.39% in cluster V and X and 0.00 to 87.89% in cluster VIM and X. Thus, it is inferred from this study that there is a strong relationship between genetic distance and standardized potence.