Vol. 11, Issue 6 (2022)

Author(s):
A Vijayabharathi and DL Savithramma

Abstract:
The present experiment was conducted to assess the variability, heritability and genetic advance as per cent of mean for ten characters in three F₂ populations of groundnut. The variability parameters revealed that the phenotypic coefficient of variation was higher than genotypic coefficient of variation for all the characters studied indicating the role of environmental variance in the total variance. Phenotypic coefficients of variance (PCV) and genotypic coefficients of variance (GCV) for important yield contributing characters such as pods per plant, pod yield per plant in all the three F₂ generations were higher in magnitude. Plant height, specific leaf area, pods per plant, SMK percentage, kernel yield and pod yield were displayed high heritability along with high GAM in all the three crosses. It suggests that all the six characters are conferred by additive gene action and these characters could be improved through simple selection in earlier generations.