Variability and Genetic Divergence Studies in Brinjal (Solarium melongena L.) Genotypes

摘要

A field investigation was carried out with 60 genotypes ofbrinjal. High GCV and PCV (>20%) were observed for number of primary branches (at 90 and 120 DAT), number of fruits per cluster, average fruit weight, fruit length-diameter ratio, number of fruits per plant, total yield per plant, indicating the existence of broad genetic base, which would be amenable for further selection. High heritability coupled with high genetic advance over mean was observed for plant height (at 60,90 and 120 DAT), daysto first flowering, number of fruits per cluster, fruit length, fruit diameter, average fruit weight and total yield per plant indicates predominance additive gene action. Genetic divergence was studied with same genotypes and the maximum number of genotypes (36) was found in cluster 1 with intra-cluster distance of 20.79. The maximum inter-cluster distance was observed in between cluster III and cluster VII. Hence, genotypes belonging to these clusters may be utilized for in-volving in hybridization program for crop improvement. The characters of average fruit weight (52.32%), number of fruits per cluster (14.52%) and plant spread at 60 DAT (13.90%) contributed more for genetic divergence.