Studies on genetic variability, heritability and coefficients of correlation for yield and qualitative traits in Arvi [Colocasia esculenta (L.) Schott

Abstract

The present investigation “Studies on genetic variability, heritability and coefficients of correlation for yield and qualitative traits in Arvi [Colocasia esculenta (L.) Schott]” was carried out at Vegetable Research Farm, Department of Vegetable Science, College of Horticulture and Forestry, Neri, Hamirpur (HP) during summer-rainy season, 2019. Twenty-three genotypes were evaluated in Randomized Complete Block Design with three replications to ascertain extent of variability, heratibility, genetic advance and gain and correlation for yield and other horticulture traits among the genotypes. Analysis of variance showed significant differences among all the genotypes for all the characters under study. Three genotypes namely LC-A-5-18, LC-A-16-18 and LC-A-13-18 were found to be high yielding as well as better from consumer’s point of view. They could be the promising parents for utilization in further breeding programmes. High PCV and GCV existed for number of cormels per plant, disease severity, tuber yield per plot, number of corms per plant, weight of cormels per plant, plant height and width of cormels. High heritability estimates were observed for width of corms, tuber yield per plot, plant height, weight of cormels per plant, disease severity, length of leaf lamina, dry matter percentage in tubers, width of cormels and weight of corms per plant while, high estimates of genetic gain were observed for number of cormels per plant, tuber yield per plot, disease severity, plant height and weight of cormels per plant.