Assessment of genetic variability, correlation and path coefficients among varieties and advanced breeding lines of eggplant for fruit yield and related traits
Genetic variability and path analysis in eggplant
DOI:
https://doi.org/10.21921/jas.v12i02.15234Keywords:
Genetic variability, Heritability, Correlation and path coefficient, Breeding improvementAbstract
An experiment conducted at BUAT, U.P. (2021–2023) on 34 eggplant accessions assessed genetic variability, correlations, and path coefficients. High GCV and PCV were recorded for number of flowers per cluster, followed by the number of fruits per plant, average fruit weight and leaf area index indicating strong genetic variability and scope for selection. High heritability coupled with high GA% of mean was observed for number of flowers per cluster, number of fruits per plant, leaf area index, average fruit weight, fruit length, and fruit yield per plant suggesting additive gene action. Genotypic and phenotypic correlation revealed significant positive correlation on fruit yield per plant with average fruit weight and fruit length provide valuable insights into selecting traits for breeding improvement programs. Path coefficient analysis showed significant positive direct effect on fruit yield via number of fruits per plant, fruit diameter, days to 50% flowering, average fruit weight and fruit length. These results highlight key traits for targeted selection in eggplant breeding to improve yield and associated characteristics.
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