Vol. 11, Issue 11 (2022)

Author(s):
Sandeep N, Dushyantha Kumar BM and Lakshmana D

Abstract:
Eight hundred F₂ population generated by crossing eight diverse parents in structured mating design were evaluated in an augmented design during rabi 2021-22. These 800 F₂ population were assessed for genetic variability for fruit yield and yield related traits viz., days to 50 per cent flowering, plant height (cm), number of branches, number of internodes, inter nodal length (cm), fruit length (cm), fruit diameter (cm), average fruit weight (g), number of fruits per plant, number of seeds per fruit, test weight (g) and fruit yield per plant (g). The analysis of variance revealed highly significant difference among genotypes for all the characters studied. The genetic variability studies revealed high PCV and GCV values for traits viz., number of primary branches, and fruit yield per plant. Moderate PCV and GCV were recorded for traits viz., number of internodes, fruit length, average fruit weight, number of fruits per plant, number of seeds per fruit and test weight. The high heritability coupled with high genetic advance as per cent mean was observed for the traits viz., fruit yield per plant, number of seeds per fruit, number of fruits, average fruit weight, fruit length and number of primary branches per plant, which suggested that most of the traits were highly heritable and the expression of the traits were more of controlled by genetic factor with less influence of environmental factors which allows breeders to improve the crop yield and other desirable traits through selection. Thus, further indicating the predominance of additive gene action for these traits.