Vol. 11, Special Issue 8 (2022)

Author(s):
Anantha Reddy M, Jaiprakash Narayan RP, P Vasudev Naik, Pampanna Y, Govindappa MR and Mahantesh Y Jogi

Abstract:
The present study was conducted to know genetic variability for yield and quality attributes in onion (Allium cepa. L) at ICAR-KVK, Hagari, Benchi Kottal, Ballari, during rabi (2020-21) with thirty two onion genotypes with three replication in order to generate information regarding the extent of genetic variability, heritability, genetic advance as percent mean. High degree of variation was observed for all the characters studied. Phenotypic co-efficient of variance (PCV) in general was higher than genotypic co-efficient of variance (GCV) and also the difference is small and which reflects the role of environment is very less. Genotypic coefficient of variation varied from 5.66% (number of leaves per plant) to 45.93% (leaf area and leaf area index). Phenotypic coefficient of variation varied from 9.31% (days to maturity) to 48.72% (leaf area and leaf area index) for various character studied. High estimates of heritability found for all the characters except number of leaves per plant and total soluble solids. Genetic advance as percent mean was observed high for all characters except number of leaves per plant, days to maturity and total soluble solids. The characters are governed by additive gene effects. Selection on the basis of the characters will be more useful for the crop improvement of the crop towards attaining higher yield.