Estimates of genetic parameters and path analysis in lentil (Lens culinaris Medik)
2008
Younis, N. (Government Coll. Univ., Faisalabad (Pakistan)) | Hanif, M. (Government Coll. Univ., Faisalabad (Pakistan)) | Sadiq, S. (Nuclear Inst. for Agriculture and Biology, Faisalabad (Pakistan)) | Abbas, G. (Nuclear Inst. for Agriculture and Biology, Faisalabad (Pakistan)) | Asghar, M.J. (Nuclear Inst. for Agriculture and Biology, Faisalabad (Pakistan)) | Haq, M.A. (Nuclear Inst. for Agriculture and Biology, Faisalabad (Pakistan))
These studies were conducted to determine the genetic parameters and character association in elite lines of lentil (Lens culinaris Medik). Genetic parameters like genotypic and phenotypic variances, coefficients of variation, heritability, genetic advance, correlation coefficients and path coefficients were estimated. Significant variation was noted for all the traits. High heritability estimates were observed for all the traits except number of primary branches per plant. In general phenotypic coefficients of variability were greater than their corresponding genotypic coefficient of variability. Higher estimates of heritability and genetic advance were observed for seed yield (97.10%, 90.71%), harvest index (96.20%, 63.29%) and maturity days (95.90%, 63.39%) indicating that these characters are mainly controlled by additive genes and selection of such traits might be effective for the improvement of seed yield. Days to flower, plant height, number of primary branches, biological yield, harvest index and hundred seed weight had positive direct effect on seed yield. Biological yield, hundred seed weight and harvest index also had positive and highly significant genotypic and phenotypic correlation with seed yield. Hence these traits could be used for the improvement of seed yield resulting in the evolution of high yielding varieties of lentil.
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