Vol. 12, Issue 5 (2023)

Author(s):
Deepak Kumar Mishra, Birender Singh, SS Mandal, Kumari Rashmi and Sumit Kumar Mishra

Abstract:
In Rabi, 2019-20 the experiment was planned in a line × tester mating pattern and 30 crosses were made. In Kharif, 2020 all 30 crosses along with their 13 parents and 2 checks were grown in Randomized Block Design with two replications and were evaluated. The experiment was carried out to study the diversity among the parents. Genetic divergence was analysed using D² statistics. The 13 genotypes were grouped into four different clusters on the basis of inter-genetic distance. It indicates the presence of considerable diversity within the genotypes. The dendrogram representing the clustering of 13 genotypes was also examined. The cluster I showed ten genotypes, followed by one genotype in cluster II, cluster III and cluster IV each. The contribution of lines was found to be greater than that of testers and interaction to the total hybrid variance, which indicates that the lines are superior to the testers. The analysis of variance for combining ability revealed that both additive and non-additive gene actions were responsible for the inheritance for all the characters under study.