Genetic analysis for growth and yield character association in different genotypes of tomato (Solanum lycopersicum L.)

Abstract

The present study was carried out at the Experimental Research Field, Department of Horticulture, Naini Agriculture Institute, SHUATS, Prayagraj, The material for the present study comprised of 15 genotypes of tomato. The experiment was laid out in a randomized block design (RBD) with three replications for each treatment. Quantitative character were recorded such as plant height (cm), Days to 1st flowering, days to 50% flowering, Number of branches per plant, number of flowers per cluster, number of fruit set per cluster, number of flower cluster per plant, number of fruits per plant, days to first fruit set, fruit yield per plot, fruit weight (g), fruit length, fruit diameter (cm), TSS, ascorbic acid, pericarp thickness (mm), number of locules per fruit, fruit yield plant-1 (kg). On the basis of Analysis of variance, significant differences were observed among the genotypes for all the characters under study. The high (> 30%) Phenotypic Coefficient of Variation (PCV) were observed fruit weight (30.25%) and all other remaining parameters are comes under moderate and low PCV and Genotypic Coefficient of Variation (GCV). The presence of high PCV and moderate GCV for fruit weight suggested the possibility of improving and fixing these characters through employing selection breeding.