Table 1.

Genetic parameter estimates for tree height and stem form from ABLUP models with standard errors provided in parentheses

Parameter	Height	Stem form
	Estimate (SE)	Estimate (SE)
Type B genetic correlation (${\widehat{r}}_B$)	0.785 (0.021)	0.873 (0.021)
Additive genetic variance (${\sigma }_u^2$)	0.203 (0.036)	0.257 (0.015)
Specific combining ability variance (${\sigma }_{\mathit{SCA}}^2$)	0.013 (0.003)	0.007 (0.002)
Mean residual variance for fourth-Cycle tests (${\overline{\sigma }}_{e\left(p\right)}^2$)	0.389 (0.012)	0.934 (0.019)
Mean residual variance for clonal tests (${\overline{\sigma }}_{e\left(c\right)}^2$)	0.145 (0.002)	0.180 (0.003)
Family-mean heritability ($h_f^2$)	0.96 (0.003)	0.92 (0.005)
Clone-mean heritability ($h_c^2$)	0.49 (0.012)	0.51 (0.014)
Narrow-sense heritability ($h^2$)	0.31 (0.014)	0.19 (0.010)