Genetic studies in tomato (Solanum lycopersicum [Mill.] Wettsd.) for yield and its attributing traits
1 Mahendra Kr. Yadav, 2 Juri Das and 3 Satyendra Kumar
Department of Agriculture, RNB Global University, Bikaner - 334001 India 2Department of Agriculture, Teerthanker Mahaveer University, Moradabad - 244001 India 3Department of Vegetable Science, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur - 208002 India Corresponding author: mahendra.yadav@rnbglobal.edu.in
ABSTRACT
The present investigation was carried out to estimate the genetic variability, heritability in broad sense, correlation and path coefficient and genetic divergence{D2}analysis among 50 genotypes of tomato {Solanum lycopersicum [Mill.] Wettsd.} for twelve yield contributing traits during 2021 in Randomized Block Design with three replications. High magnitude of phenotypic as well as genotypic coefficient of variation were observed in case of number fruit per plant followed by unmarketable fruits yield per plant, average fruit weight, marketable fruit yield per plant and total fruit yield per plant. High heritability was recorded for all the traits. High heritability along with high genetic advance was estimated for average fruit weight followed by number of fruits per plant, marketable fruit yield per plant, unmarketable yield per plant and total fruit yield per plant. The polar diameter of fruit was highly significant and positive association with equitorial diameter of fruit. Positive direct effect was exerted by number of fruit per plant followed average fruit weight, polar diameter of fruit on fruit yield per plant. Maximum intra cluster distance was recorded within cluster III and inter cluster distance was recorded between cluster I to V III. Cluster III had maximum number of genotypes and highest per cent contribution towards clustering of genotypes were observe in average fruit weight.