Table 2 shows the genetic correlation matrix of wood properties from the model presented in Equations 6 and 7. For breeders interested in reducing growth-strain the low to nil correlation between growth-strain and diameter (and height) will provide an opportunity to simultaneously increase growth and decrease strain. The positive correlation between strain and stiffness indicates that some stiffness will need to be sacrificed in order to reduce strain; however, because of the very high stiffness values within E. bosistoana , this reduction may not be of practical importance. The stronger correlation between strain and acoustic velocity rather than with stiffness or density suggests the Micro-Fibril Angle (MFA) has a larger impact on growth-strain generation than density. While not measured, grain angle may account for some of the variation which MFA and stiffness cannot explain.
Narrow sense heritability (for E. bosistoana at age two) presented on the diagonal, with genetic correlations between traits in the upper half of the table, calculated using the model presented above. 95% credible intervals in brackets.