Official Journal of the Japan Wood Research Society
Table 5 Variance components for growth ring width and specific gravity of Melia azedarach
From: Variation in intrinsic wood properties of Melia azedarach L. planted in northern Vietnam
Source of variation | df | Growth ring width | Specific gravity | ||
|---|---|---|---|---|---|
P value | Var (%) | P value | Var (%) | ||
Site (S) | 1 | 0.226 | 0.28 | 0.001 | 2.49 |
Tree/site (T/S) | 4 | 0.085 | 1.58 | 0.033 | 1.97 |
Height level (L) | 4 | 0.008 | 2.67 | 0.001 | 4.92 |
L × S | 4 | 0.673 | 0.45 | 0.055 | 1.67 |
L × T/S | 16 | 0.994 | 1.02 | 0.001 | 6.66 |
Radial position (P) | 18 | 0.001 | 52.58 | 0.001 | 58.49 |
P × S | 17 | 0.001 | 5.11 | 0.013 | 2.50 |
P × T/S | 66 | 0.001 | 14.37 | 0.011 | 6.78 |
P × L | 69 | 0.880 | 5.06 | 0.100 | 2.59 |
P × L × S | 68 | 0.520 | 5.54 | 0.100 | 2.61 |
R/P/L/T/S | 250 | 11.34 | 9.33 | ||