Estimates of variability and correlations for quantitative traits in Cicer arietinum
2008
Ali, M.A. (Barani Agricultural Research Station, Fateh Jang (Pakistan)) | Nawab, N.N. (Ayub Agricultural Research Inst., Faisalabad (Pakistan)) | Rasool, G. (University of Agriculture, Faisalabad (Pakistan). Dept. of Plant Breeding and Genetics) | Saleem, M. (University of Agriculture, Faisalabad (Pakistan). Dept. of Plant Breeding and Genetics)
Twenty elite chickpea lines were studied for variability and correlation for traits like number of days to flowering, number of days to maturity, number of primary branches per plant, number of secondary branches per plant, plant height and seed yield per plant (g). Varietal differences among the genotypes were significant (P less than 0.01). Phenotypic and genotypic variances were higher for plant height (33.29 & 32.45) and seed yield per plant (13.47 & 13.11). Broad sense heritability estimates were the highest for plant height (97.4) and seed yield per plant (97.3). Genetic advance was higher for seed yield per plant (27.42) and plant height (14.51). High heritability for both the traits coupled with high genetic advance revealed that additive genetic effects were important for these characters. Positive genotypic correlation was detected between seed yield and number of primary branches per plant (0.76), while at phenotypic association was highly significant (0.63). To conclude, plant height and number of primary branches would be the appropriate selection criteria for better seed yield in chickpea.
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