Table V
Predicted genetic responses at 10% selection intensity (percentage in parethenses) in juvenile growth and wood quality traits and net present value profitability (breeding objective response) for index selection based on the genetic parameters from the literature. Five different scenarios were considered: (D) base scenario using variance-covariance parameters from (Wu et al., 2008) for selection and objective traits; (E) economic weight on MoEOBJ (MoE as the objective trait) was increased by 50%; (F) heritability of selection traits DEN and MoESS was reduced 50%; (G) genetic and phenotypic correlations between objective traits MAIOBJ and MOEOBJ and the selection traits DEN and MoESS were reduced by 50%; (H) heritability of selection traits DEN and MoESS was reduced 50% and correlations of the objective traits (MAIOBJ and MOEOBJ) with the selection traits (DEN and MoESS) were reduced by 50%.
| Predicted genetic response | |||||||
|---|---|---|---|---|---|---|---|
| Scenario | DEN | DBH | MoESS | MfA | SG | LSH | Profitability |
| (kg m−3) | (mm) | (GPa) | (deg) | (deg) | (%) | (Aus$ha−1 y−1) | |
| (D) | –13.63 | 3.53 | –0.35 | –0.45 | 0.04 | 0.02 | 1500 |
| (–3.8%) | (2.2%) | (–5.0%) | (–1.5%) | (1.0%) | (1.2%) | (33.0%) | |
| (E) | –5.58 | 2.18 | 0.20 | –1.49 | 0.01 | –0.05 | 1387 |
| (–1.6%) | (1.4%) | (2.9%) | (–5.1%) | (2.6%) | (–4.1%) | (30.6%) | |
| (F) | –5.09 | 2.71 | 0.10 | –1.16 | 0.00 | 0.03 | 1293 |
| (–1.4%) | (1.7%) | (1.4%) | (–4.0%) | (0.0%) | (2.2%) | (28.5%) | |
| (G) | –6.07 | 3.28 | –0.07 | –0.68 | 0.05 | –0.01 | 1197 |
| (–1.7%) | (2.1%) | (–1.0%) | (–2.3%) | (1.2%) | (–0.7%) | (26.4%) | |
| (H) | –2.57 | 2.83 | 0.13 | –1.02 | 0.04 | –0.01 | 1160 |
| (–0.7%) | (1.8%) | (1.9%) | (–3.5%) | (1.0%) | (–1.0%) | (25.6%) | |