Table 3.
Soluble sugar and starch concentrations in the different fractions of clipped (B) and control (C) B. pubescens and Q. petraea trees harvested in August 2008 (ca 1 year after clipping).
| B. pubescens | Q. petraea | |||||||
|---|---|---|---|---|---|---|---|---|
| SS (mg g−1) | Starch (mg g−1) | SS (mg g−1) | Starch (mg g−1) | |||||
| B | C | B | C | B | C | B | C | |
| L | 65.2 (3.6) | 79.1* (4.0) | 69.2 (6.8) | 68.0 (3.9) | 56.7 (4.8) | 50.8 (3.5) | 55.0 (9.6) | 57.7 (5.1) |
| 0-St | 37.9 (1.7) | 38.9 (1.4) | 40.3 (2.6) | 42.9 (3.7) | 20.8 (1.1) | 21.1 (0.9) | 70.2 (8.8) | 81.2 (15.9) |
| 1-St | 33.4 (3.9) | 37.9 (2.5) | 36.3 (2.1) | 44.9 (6.3) | 22.4 (2.2) | 22.2 (1.0) | 68.2 (10.0) | 68.3 (10.4) |
| 2-St | 30.9 (2.4) | 33.0 (2.0) | 43.5 (3.1) | 51.6 (9.3) | 21.3 (2.2) | 19.6 (2.3) | 73.6 (13.4) | 90.9 (10.9) |
| MS | 23.8 (2.1) | 26.3 (1.3) | 54.8 (6.4) | 43.6 (3.0) | 20.0 (2.0) | 16.5 (0.7) | 107.0 (10.1) | 121.3 (14.0) |
| CR | 28.1 (2.5) | 30.3 (2.7) | 182.2 (14.4) | 147.6 (12.7) | 27.9 (3.3) | 24.3 (1.1) | 270.3 (6.4) | 266.8 (9.9) |
| FR | 23.4 (1.7) | 25.3 (1.6) | 85.8 (5.2) | 75.0 (8.5) | 22.0 (1.5) | 19.2 (1.1) | 65.7 (5.8) | 66.7 (5.6) |
L = leaves, 0-St = current year stems, 1-St = 1-year-old stems, 2-St = 2-year-old stems, MS = main stems, CR = coarse roots, FR = fine roots. Data are means and SE (in parentheses). Significant differences between treatments within a given species at α = 0.05 are indicated by an asterisk.