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Table. 9.

Table. 9.

Estimates of genetic components and heritability of traits in the studied genotypes.

Parameters Grain yield plant-1 (g) Hundred-grain weight (g) Grains per panicle (no) Days to heading (day) Number of panicles plant-1 Panicle length (cm) Plant height (cm)
σGCA2 31.057 0.004 78.415 3.832 0.100 1.912 87.243
σA2 124.229 0.017 313.660 15.328 0.200 7.648 348.970
σD2 215.738 0.102 231.638 26.379 140.943 16.256 53.308
σE2 0.516 0.003 18.396 0.879 1.327 1.136 8.137
hbs2 0.998 0.977 0.967 0.979 0.991 0.955 0.980
hns2 0.365 0.138 0.556 0.360 0.043 0.305 0.850
σSCA2 215.738 0.102 231.638 26.379 140.943 16.256 53.308
σGCA2/σSCA2 0.144 0.041 0.339 0.145 0.001 0.118 1.637
σD2/σA21/2 1.318 2.470 0.859 1.312 37.542 1.458 0.076

σGCA2 : General combining ability variance, σA2 : Additive genetic variance, σD2 : Dominance genetic variance, σE2 : Environment variance, hbs2 : Broad sense heritability, hns2 : Narrow sense heritability, σSCA2 : Specific combining ability variance, σGCA2/σSCA2 : Ratio of variance of general to specific combining ability, and σD2/σA21/2 : Degree of dominance.

Plant Breed. Biotech. 2024;12:17-29 https://doi.org/10.9787/PBB.2024.12.17
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