Study on Genetic Variability, Heritability and Genetic Advancement for Yield and Yield Contributing Traits in Ivy Gourd [Coccinia grandis (L.) Voigt.]

Abstract

The present investigation was carried out during Rabi season 2024 at Horticultural Research Field, SHUATS, Prayagraj, to study genetic variability, heritability, correlation, and character association in Ivy gourd (Coccinia grandis (L.) Voigt.). Nine genotypes were evaluated using a Randomized Block Design (RBD) with three replications. Significant variations were observed across all traits. Arka Neelachal Sabuja recorded superior performance for key growth and yield traits. High genotypic and phenotypic coefficients of variation (GCV and PCV) were noted for fruit yield per plant. High heritability and genetic advance in number of fruits per plant indicated additive gene action. Genotypic correlation analysis revealed positive and significant relationships between vine length at 90 DAT, fruit length, average fruit weight, number of fruits per plant, and fruit yield per plant. Path coefficient analysis indicated number of fruits per plant and fruit yield per plant had the most substantial direct effects on fruit yield per hectare. These findings provide a foundation for selection in Ivy gourd breeding programs.