Author(s):

Veerendra Kumar, VB Singh, GC Yadav, Deepak Maurya and Manjeet Kumar

Abstract: The experiment was conducted during the spring-summer season, 2017 in Eastern Uttar Pradesh, to evaluate the nature and magnitude of genetic divergence among the thirty genotypes of bitter gourd were carried out by using Mahalanobis D² statistics. Thirty genotypes were grouped into 7 different non-overlapping clusters. The highest number of genotypes was presented in cluster III which contained 9 entries followed by cluster V which contains 8 entries, cluster VI which contained 5 entries, cluster I which contained 4 entries, cluster IV which contained 3 entries and cluster II possess 1 entries respectively. Highest estimates of genetic advance in per cent of mean was recorded for vine length (80.31%), node number to anthesis of first staminate flower (66.23%), number of fruits per plant (45.65%), total fruit yield/plant (38.42%). Moderate genetic advance in per cent of mean was estimated in number of primary branches per plant (37.86%), node number to anthesis of first staminate flower (37.65%), fruit length (37.40%), number of nodes per vine (35.35%), average fruit weight (31.68%), fruit diameter (29.79%) whereas days to anthesis of first pistillate flower (26.12%), days to anthesis of first pistillate flower (23.80%), days to first fruit harvest (21.58%) showed low genetic advance in per cent of mean. Vine length contributed maximum towards genetic diversity (26.67%), followed by fruits per plant (25.75 %), days to anthesis of first pistillate flower (13.69%), average fruit weight (9.43%), number of primary branches per plant (8.51%), node number to anthesis of first staminate flower (7.36%), fruit length (4.37%) and total marketable fruit yield per plant in sponge gourd.

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