Vol. 11, Issue 12 (2022)

Author(s):
SA Samindre, VS Jagtap, SN Deokar, SS Pisal and RS Jadhav

Abstract:
The goal of the current investigation was to study generation mean analysis of three crosses each having P₁, P₂, F₁, F₂, BC₁ and BC₂ generations in a Randomized block design with two replications at the experimental research farm of the Department of Horticulture, College of Agriculture Latur, during the summer of 2021 (crossing) and kharif of 2021 (evaluation). Epistatic gene interaction was present, as shown by the scaling test. In all three crosses, the duplicate epistasis was seen in the plant height, nodal length, number of nodes per plant, number of branches per plant, and node at which the first flower appeared. Arka Abhay x Varsha Uphar showed duplicate epistasis for days to 50% flowering, number of fruits per plant, length of fruit, and diameter of fruits in cross. This suggests that in order to take advantage of the population under study, a specific breeding procedure, such as intermating the most desirable segregants, selfing, and selecting superior genotypes along with progeny testing, is required. Gene actions that are both additive and non-additive were found in all characters that contribute to yield. When additive effects are greater than non-additive ones, selection in the early generation would be effective. The development of the character requires extensive selection through subsequent generations if the non-additive portions are greater than the additive ones.