Study of different parameters of genetic variability and performance of various genotypes in Okra

Abstract

The present investigation was conducted at Nursery area, Department of Horticulture, College of Agriculture, Indore, M.P. during kharif season of 2016. The experiment was laid out in Randomized Completely Block Design (RCBD) with three replications and eighteen genotypes were collected namely Shakti, Jhilmil, No. 55, Sahiba, No. 64, Harita, Saarika, Ns-801, Arya Mohini, Shaan, Hissar Unnat, Panchwati, Panchali, Swati, Lakshmi, OH-102, Shankar Ganga and Parbhani Kranti. Analysis of variance revealed highly significant variation for all the characters indicating greater variability in the existing material. The genetic variation can only be useful for crop improvement with the help of partitioning variances. Phenotypic co-efficient of variation (PCV) agreed closely with the genotypic co-efficient of variation (GCV), but the magnitude of PCV was higher than GCV for almost all the characters. The phenotypic coefficient of variations (PCV) was highest for characters viz., length of internodes, fruit yield per plot, fruit yield per ha and fruit yield per plant, while highest genotypic coefficient of variation (GCV) was noted for fruit yield per plant, length of internodes, fruit yield per plot and fruit yield per ha indicating greater diversity for these traits and their further improvement through selection. High heritability coupled with high genetic advance for traits like fruit yield per plant, fruit yield per plot, fruit yield per ha, length of internodes, number of leaves per plant at 90 DAS, plant height at 90 DAS and fruit weight suggested that they could be improved through direct selection.