Author(s):

Kuldeep Kumar, DP Singh, Meenakshi Kumari, Shiv Prakash Shrivastav, Dr. PK Tiwari, Saurabh Tomar and Kanhaiya Lal

Abstract: The present investigation was carried out to study genetic parameters for fifteen yield and its contributing characters in 64 (48 F₁s, 12 lines and 4 testers) genotypes with two check varieties during Kharif 2017-18 to 2018-19. Analysis of variance revealed that the differences among treatments were highly significant for majority of the characters studied in both the years. Further partitioning of treatment variances into parents, crosses, lines and testers revealed highly significant differences among parents as well as crosses for majority of the characters. The pooled analysis of variance also divided the source of variance into environments found highly significant for all the traits under study except for specific gravity. In the year Y₁, high estimate of heritability in narrow-sense was recorded for fruit length (84.40%) and fruit circumference (80.30%).In the year Y₂, high estimate of heritability in narrow-sense was recorded for fruit length (84.50%) followed by fruit circumference (85.00%), leaf width (33.90%) and dry matter content (30.60%). In case of over pooled, high estimate of heritability in narrow-sense was recorded for fruit length (84.60%) and fruit circumference (80.30%). In Y₁, high estimate of genetic advance in per cent of mean (>20%) was observed for average fruit weight (89.58%). In Y₂, high estimate of genetic advance in per cent of mean (>20%) was observed for average fruit weight (88.38%). In over pooled, high estimate of genetic advance in per cent of mean (>20%) was observed for average fruit weight (88.46%), this suggest that these traits can be taken as selection parameters to select elite genotypes.

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