Table 1.
Measurements of Lyginia barbata roots and their surrounding sandsheaths formed at increasing distance from the root apex
| Distance from root apex (mm) | Volume sheath/volume root | Diameter of root (mm) | Thickness of sheath (mm) |
|---|---|---|---|
| 10 | 0·4 (0·1) | 2·0 (0·1) | 0·2 (0·06) |
| 20 | 3·0 (0·5) | 1·9 (0·1) | 0·7 (0·11) |
| 40 | 3·0 (0·4) | 2·0 (0·1) | 1·0 (0·06) |
| 60 | 3·6 (0·6) | 1·9 (0·1) | 1·1 (0·07) |
| 80 | 3·8 (0·6) | 2·0 (0·1) | 1·2 (0·05) |
| 100 | 5·9 (0·7) | 1·8 (0·1) | 1·3 (0·04) |
| 120 | 5·6 (1·6) | 1·9 (0·2) | 1·5 (0·17) |
| 140 | 5·5 (1·6) | 1·8 (0·1) | 1·4 (0·20) |
| 160 | 5·1 (1·4) | 1·9 (0·1) | 1·4 (0·17) |
| 180 | 4·1 (0·6) | 1·9 (0·1) | 1·2 (0·07) |
Data are means (s.e.), n = 20 roots from ten plants.