Sample sizes for tree species and specific growth types.
| Trees | Response growth | Heading growth | Epicormic growth | Directional growth | Control growth | |
|---|---|---|---|---|---|---|
| Fraxinus pennsylvanica | 28 | 111 | 20 | 82 | 9 | 66 |
| Acer platanoides | 15 | 58 | 18 | 30 | 10 | 30 |
| Acer saccharinum | 16 | 62 | 6 | 47 | 9 | 28 |