Vol. 9, Special Issue 11, Part G (2025)

A field experiment was conducted during 2024-25 at the Department of Vegetable Science, College of Horticulture, Mudigere, to assess genetic variability among sixteen ivy gourd (Coccinia grandis L.) genotypes collected from different regions. The experiment followed a Randomized Complete Block Design with three replications. Significant differences were observed among genotypes for all traits, indicating wide genetic variability. High genotypic and phenotypic coefficients of variation were recorded for petiole length, fruit length, number of fruits per vine, fruit yield per vine and fruit yield per hectare, suggesting ample scope for selection. Moderate variability for vine girth, internodal length and branching traits indicated both genetic and environmental influence. High heritability coupled with high genetic advance was observed for vine girth, petiole length, number of secondary branches, fruit yield, TSS and ascorbic acid content, confirming the predominance of additive gene action. These traits can therefore be improved effectively through direct selection. The study highlights the existence of substantial genetic diversity among the genotypes, providing valuable scope for developing high-yielding and nutritionally superior ivy gourd varieties.