Author(s):

Shailesh Singh, VB Singh and Nidhi Tyagi

Abstract: Sponge gourd is cultivated and marketed by smallholder farmers, and are important crop in home gardens throughout southern and southeastern Asia. Twenty eight genotypes of sponge gourd were evaluated for their genetic variability, heritability and potential for screening suitable genotypes for future improvement programmes. The genotypes exhibited highly significant differences for all the traits under study. A wide range of variability along with high estimates of PCV and GCV was observed for node number to anthesis first staminate flower, node number to anthesis first pistillate flower, vine length, number of fruits per plant and average fruit yield per plant indicating high variability available in the germplasm for these characters for further improvement. High heritability coupled with high genetic advance as per cent of mean was observed for node number to anthesis of first staminate flower, node number to anthesis of first pistillate flower, days to anthesis of first staminate flower, vine length, number of nodes per vine, number of primary branches per plant, fruit length, fruit diameter, number of fruits per plant, average fruit weight and average fruit yield per plant indicated these characters had additive gene effect and therefore, these are more reliable for effective selection.

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