Table 1 Effects of the population and breeding generation on the field performance of 2-year-old P. radiata seedlings established in a sandy soil site (mean ± standard errors)
Traits | Populations | Population and breeding generation | Significance level (P) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
Interior | Coastal | |||||||||
Interior (9) | Coastal (21) | First (3) | Second (6) | First (2) | Second (12) | Third (7) | P | G(P) | F(G(P)) | |
H | 87.0 ± 1.05 | 84.8 ± 0.69 | 78.8 ± 1.78 | 90.8 ± 1.25 | 81.3 ± 2.14 | 83.6 ± 0.92 | 87.7 ± 1.18 | 0.33 | 0.02 | 0.00 |
D | 20.2 ± 0.30 | 20.1 ± 0.19 | 18.6 ± 0.54 | 21.0 ± 0.35 | 19.3 ± 0.63 | 19.7 ± 0.25 | 21.1 ± 0.33 | 0.85 | 0.01 | 0.00 |
VOL | 469.5 ± 18.6 | 448.7 ± 11.7 | 379.2 ± 32.1 | 512.0 ± 22.6 | 400.6 ± 34.0 | 427.3 ± 15.4 | 498.8 ± 15.7 | 0.81 | 0.02 | 0.00 |
SUR | 75.9 ± 1.58 | 72.9 ± 1.07 | 73.3 ± 0.80 | 77.4 ± 1.90 | 72.2 ± 1.50 | 72.9 ± 1.40 | 73.2 ± 0.90 | 0.27 | 0.87 | 0.00 |
A n | 2.91 ± 0.19 | 3.29 ± 0.13 | 2.86 ± 0.28 | 2.94 ± 0.25 | 3.28 ± 0.42 | 3.40 ± 0.19 | 3.11 ± 0.23 | 0.22 | 0.89 | 0.01 |
E | 0.65 ± 0.03 | 0.76 ± 0.03 | 0.64 ± 0.06 | 0.65 ± 0.04 | 0.78 ± 0.11 | 0.78 ± 0.04 | 0.71 ± 0.05 | 0.11 | 0.82 | 0.00 |
g s | 0.022 ± 0.001 | 0.025 ± 0.001 | 0.021 ± 0.002 | 0.022 ± 0.001 | 0.025 ± 0.003 | 0.026 ± 0.001 | 0.024 ± 0.001 | 0.14 | 0.86 | 0.01 |
WUEi | 125 ± 5.4 | 124 ± 3.1 | 134.3 ± 8.11 | 120.4 ± 6.96 | 140.1 ± 6.11 | 121.0 ± 4.75 | 125.8 ± 4.64 | 0.99 | 0.46 | 0.01 |
Ψ pd | 0.61 ± 0.30 | 0.61 ± 0.20 | 0.57 ± 0.60 | 0.64 ± 0.40 | 0.65 ± 0.50 | 0.60 ± 0.20 | 0.62 ± 0.40 | 0.64 | 0.65 | 0.77 |