Assesment of genetic of coefficient (PCV, GCV), heritability and genetic advance for leaf yield and its component characters of Chench (Corchorus acutangulus Lam.)

Abstract

Investigation was comprised of 46 chench (Corchorus acutangulus Lam.) indigenous genotypes exhibited wide spectrum of variation for various agronomic and morphological characters collected from three agroclimatic zones of Chhattisgarh India. The experiment was laid out in Randomized Complete Block Design (RBCD) with three replication during Kharif 2015 at Horticultural Instructional and Research Farm, Department of Horticulture, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) to identify diverse genotypes. The genotypes were employed for the assessment of genetic variability, heritability and genetic advance for analysis. Variance revealed that sufficient genetic variation has been created for seed yield and its attribute for taking different biometrical analyses. Relative magnitude of phenotypic coefficients of variation was higher than genotypic coefficients of variation for all the characters under study indicating environmental influence on the traits. The analysis of variance revealed that the high genotypic and phenotypic coefficient of variation was recorded for Number of branches plant, fresh weight of plant, dry weight of plant. High heritability coupled with high genetic advance was observed for number of branches per plant, test weight, yield kg per plot, petiole length, plant height, fresh weight of leaves, days to 50 % flowering, dry matter %, root weight, leaf width, duration of the crop, leaf stem ratio and internodal length the lesser influence of environment in expression of these traits and prevalence of additive gene action in their inheritance hence, amenable of simple selection.