Table 4 Pooled estimates of variance components, percent variance explained by each term (%), narrow-sense individual tree (\({{h}^{2}}_{i}\)), and family mean (\({{h}^{2}}_{hs}\)) heritability for height, terminal shoot length, and the number of flushes. A uniform correlation with heterogeneous variance for family effect was implemented (each site had a unique female variance, and the correlation between pairs of sites was uniform). Standard errors (±SE) are provided following the estimate. The plot effect (family by block interaction) explained a large proportion of total variance for all the traits, suggesting a suboptimal field design (row plots) and reducing heritability estimates
Estimates | Height ± SE | % | Terminal shoot length ± SE | % | Number of flushes ± SE | % |
|---|---|---|---|---|---|---|
Block | 12.78 ± 10.21 | 1.8 | 5.14 ± 3.24 | 3.5 | 1.25 ± 0.89 | 2.3 |
Stand × block | 40.14 ± 14.28 | 5.6 | 7.49 ± 2.60 | 5.1 | 0.78 ± 0.44 | 1.4 |
Row | 14.47 ± 6.50 | 2.0 | 4.97 ± 1.70 | 3.4 | 2.08 ± 0.67 | 3.8 |
Column | 8.56 ± 4.28 | 1.2 | 1.37 ± 0.79 | 0.9 | 0.58 ± 0.33 | 1.1 |
Family | 31.02 ± 5.48 | 4.3 | 4.99 ± 1.02 | 3.4 | 2.23 ± 0.45 | 4.1 |
Plot | 145.26 ± 9.11 | 20.3 | 30.03 ± 1.85 | 20.6 | 6.77 ± 0.66 | 12.4 |
Residual | 461.81 ± 8.06 | 64.7 | 91.98 ± 1.66 | 63.0 | 40.85 ± 0.76 | 74.9 |
GxE (correlation) | 0.89 ± 0.13 | 0.87 ± 0.19 | 0.67 ± 0.161 | |||
\({{h}^{2}}_{i}\) | 0.17 ± 0.03 | 0.14 ± 0.03 | 0.12 ± 0.04 | |||
\({{h}^{2}}_{hs}\) | 0.60 ± 0.04 | 0.41 ± 0.05 | 0.46 ± 0.04 | |||