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The present investigation was carried out with 18 genotypes of bottle gourd planted in Randomized Block Design with three replications to know the nature and magnitude of variability, heritability and genetic advance as percent of mean for various horticultural traits. The analysis of variance showed significant variation among different genotypes for all the traits under study. Genotype Chandra Long Special had maximum total yield followed by Sarita, G 2 Chandra, R K Cross 3, LC-6 and Gutkha G 2 Improved. Chandra Long Special took minimum days to first female flowering as well as produced maximum number of marketable fruits per plant. KGP Bottle Gourd produced maximum number of branches and nodes per plant however, maximum vine length was found in LC-5. Genetic analysis indicated that phenotypic coefficient of variation (PCV) was higher than genotypic coefficient of variation (GCV) in all of the attributes studied. High heritability (broad sense) estimates coupled with high genetic advance as percent of mean were observed for yield and other horticultural traits.

Key words: Bottle gourd, Genetic variability, Genetic advance, Heritability.