Table 3.
Genetic component estimates for days to male flowering in a 13-by-13 half-diallel of maize across three locations estimated using SASHAYDIALL
| Parameter† | Estimate ± SE |
|---|---|
| D | 5.717 ± 0.629‡ |
| H1 | 11.690 ± 1.225 |
| H2 | 11.069 ± 1.009 |
| h2 | 125.420 ± 0.674 |
| F | 1.912 ± 1.415 |
| E | 1.099 ± 0.168 |
| Mean degree of dominance | 1.430 |
| Proportion of dominance | 0.230 |
| Proportion of dominant and recessive genes in parents | 1.265 |
| Number of groups of genes which control character | 11.331 |
| Correlation (r) between Wr + Vr and Yr | 0.935*** |
| Prediction for measurement of completely dominant and recessive parents | 0.874 |
| Broad-sense heritability (H2) | 0.819 |
| Narrow-sense heritability (h2) | 0.364 |
Significant at the 0.001 probability level.
D, component of variation due to additive effect of genes; H1, component of variation due to dominance effects of genes; H2, dominance component indicating asymmetry of positive and negative effects of genes; h2, overall mean dominance effect of heterozygous loci; F, relative frequency of dominant and recessive alleles in the parents; E, environmental variation; Wr, covariance between families within the ith array and their nonrecurrent parent; Vr, the variance among family (F1 + reciprocal) means within an array; Yr, mean parental value.
Parameter estimates are presented with more accuracy for purposes of illustration only.