Vol. 11, Issue 8 (2022)

Author(s):
Sateesh Babu J, MV Ramana and Lal Ahmad

Abstract:
Using the means of P₁, P_2, F₁, F₂ and F₃ generations in each cross, estimates of various gene effects were obtained by partitioning method of five crosses for thirteen characters. Additive dominance model is failed in all the cases, hence five parameter model was applied which gave the information about the Digenic interactions between the genes at different loci. The nature of gene action for seed yield and yield attributing traits were assessed in five crosses. An experiment was conducted to fulfill the objective of estimation of Heterosis and understands genetic nature of seed yield and contributing traits have been carried out by growing the parents, P₁ and P₂ along with F₁, F₂ and F₃ during Rabi 2018 in Randomized complete block design replicated three times. A total of five populations (5 crosses) and five generations of each cross were grown. The mean data of populations were subjected to joint scale test. The results of generation mean analysis indicated varying nature of genes under different genetic backgrounds.