Vol. 11, Issue 8 (2022)

Author(s):
M Shafiya Farheen, C Venkata Ramana, V Sivakumar, G Kranthi Rekha and M Paratpara Rao

Abstract:
The magnitude of genetic variability was estimated by means of phenotypic coefficient of variation (PCV), genotypic coefficient of variation (GCV), heritability and genetic advance as per cent of mean in F₄ generation of four crosses of ridge gourd viz., VRG-24 x VRG-13, Swarna Manjari x Arka Prasan, Swarna Manjari x VRG-16, Arka Prasan x VRG-16 during Summer, 2021 at Horticultural Research Station, Chintapalli. High estimates of PCV, GCV were noticed for node of first male flower, sex ratio, fruit set percentage, fruit girth, average fruit weight, rind thickness, flesh thickness, number of fruits per vine, fruit yield per vine, number of seeds per fruit, fibre content and TSS indicating the presence of large variability and hence there is a great scope for selection. High heritability coupled with high genetic advance as per cent of mean were found for node of first male flower, node of first female flower, number of male flowers per vine, number of female flowers per vine, sex ratio, fruit set percentage, fruit length, fruit girth, average fruit weight, rind thickness, flesh thickness, number of fruits per vine, fruit yield per vine, number of seeds per fruit, 100 seed weight, fibre content and TSS indicating the existence of additive gene action and selection in these traits will be effective as they are less influenced by the environment.