Study on gene action involved in inheritance of yield and its contributing traits in brinjal (Solanum melongena L.)

Abstract

The present investigation was carried out to evaluate the 45 F1 hybrids derived from half diallel fashion along with ten parents in randomized block design with three replications during Rabi season of 2018-19 (E1) and 2019-20 (E2) at the Main Experiment Station (MES) of the Department of Vegetable Science, Acharya Narendra Deva University of Agriculture & Technology, Kumarganj, Ayodhya (U.P.). The genetic components of variation were determined for sixteen characters viz., days to 50 % flowering, leaf length (cm), leaf width, number of flower per inflorescence, days to first harvesting, plant height (cm), primary branches per plant, number of fruit per cluster, number of fruits per plant, average fruit weight (g), fruit length (cm), fruit circumference (cm), yield per plant (g), specific gravity, TSS (%) and dry weight/ 100g. The data were analyzed to fulfill the following objectives to estimates genes action for yield and its component traits analysis of variance revealed significant difference for the parents, F1 S and parent vs. F1s for all the characters indicating wide variation except fruit circumference in both years and fruit length inY1. Both additive and dominance variance were found important in the inheritance of most of the traits, whereas dominance showed over dominance for the most of the traits.