Genetic Variability Analysis and Correlation Studies of Bread Wheat (Triticum aestivum L.) Genotypes

Authors : İbrahim HASSANI, Somveer NIMBAL, Vikram SINGH, Abid NOORI

Pages : 139-145

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Publication Date : 2022-07-31

Article Type : Research Paper

Abstract :In the present investigation, fifty four bread wheat insert ignore into journalissuearticles values(Triticum aestivum L.); genotypes were evaluated for estimation of the genetic variability and its potential of each genotype under normal spring condition in Kabul Afghanistan in two years consequently insert ignore into journalissuearticles values(2020 and 2021);. Analysis of variance revealed that genotypes possess significant genetic variability among all traits. For all the studied traits, mean squares showed the presence of significant variation among the genotypes. Higher values of PCV and GCV indicated that there was high variability exiting among the genotypes. The higher values of genotypic coefficient of variation insert ignore into journalissuearticles values(GCV); and phenotypic coefficient of variation insert ignore into journalissuearticles values(GCV); were recorded for grain yield insert ignore into journalissuearticles values(GCV = 11.93% and PCV = 16.15%); followed by thousands grains insert ignore into journalissuearticles values(GCV=7.53% and PCV=8.15%);. The highest heritability insert ignore into journalissuearticles values(0.94); was indicated in grain yield in the year 2021 followed by thousand grains insert ignore into journalissuearticles values(0.85); whereas the plant height insert ignore into journalissuearticles values(0.70); observed in insert ignore into journalissuearticles values(2020);. The values of genetic advance were recorded low to moderate for all parameters. A highly significant positive correlation was observed among yield and harvest index and showed the significant difference for others except number of effective tiller per m2, on contrary the negative non-significant correlation was observed for effective tiller per m2 insert ignore into journalissuearticles values(-0.07);. Grain yield with biological yield revealed a non-significant correlation insert ignore into journalissuearticles values(0.04);, similarly days to heading revealed a nonsignificant negative correlation with grain yield insert ignore into journalissuearticles values(-0.05); respectively. From the study suggested that all the traits showing significant correlation with grain yield needs better attention for increasing yield in future wheat breeding programs.
Keywords : Bread wheat, Broad sense heritability, Genetic advance, Correlation coefficients