Mean, genotypic variance (<i>σ²_g</i>), genotype×environment interaction variance (<i>σ²_ge</i>), heritability (<i>h²</i>), predicted gain from selection (<i>ΔG</i>) and usefulness (<i>U</i>) at selection intensity <i>α</i> for agronomic and morp

*, **Significant at the 0.05, 0.01 probability level, respectively. †Different letters indicate significant differences among the four populations for the respective trait. ‡1 = absent, 9 = pronounced. §Multiply the reported mean by this this value and the variance components by the square of this this value to obtain the actual numbers.