Assessment of genetic variability parameters in sorghum [Sorghum bicolor (L.) Moench]

Abstract

In the present investigation, thirty-eight sorghum genotypes were tested in randomized block design along with three checks viz., CSV-17, CSV-23, CSV-27 with three replications at Instructional Farm, Rajasthan College of Agriculture, MPUAT, Udaipur during Kharif 2023-2024 to evaluate for 14 characters. Analysis of variance indicated that mean sum of squares due to genotypes was found significant for all of the characters under study. phenotypic coefficient of variation (PCV) was closer to genotypic coefficient of variation (GCV) for most of the traits indicating little effect of environmental variations on the characters Traits like dry fodder yield per plant followed by harvest index and plant height displayed high genetic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV), indicating significant genetic variability and potential for improvement through selection. High heritability coupled with high genetic gain was observed for the traits like the plant height, total number of leaves per plant, flag leaf length, dry fodder yield per plant, 100 seed weight, biological yield per plant, harvest index and protein content in grain.