Table 4 Estimated density of tension wood in first and second growth rings of Salix varieties
Stem (cm) | Density (kg/m3) | Entire sample | |
|---|---|---|---|
Tension 1st growth ring | Tension 2nd growth ring | ||
Tora | |||
 360 | 417.2 | 488.0 | 454.4 |
 200 | 412.1 | 489.3 | 462.3 |
 80 | 443.1 | 492.6 | 491.7 |
 Average | 424.1 | 489.9 | 469.4 |
Björn | |||
 360 | 439.6 | 508.3 | 451.3 |
 200 | 457.3 | 507.5 | 455.8 |
 80 | 455.8 | 512.9 | 490.9 |
 Average | 450.9 | 509.5 | 466.0 |