Lean frequency (percent leaning) and average lean (centimeters off plumb) observed in three tree species: Whitespire birch (Betula platyphylla var. japonica ‘Whitespire’), green ash (Fraxinus pennsylvanica), and Snowdrift crabapple (Malus × ‘Snowdrift’), planted at four depths in nursery containers over the course of 17 weeks.
Betula platyphylla var. japonica ‘Whitespire’ | Fraxinus pennsylvanica | Malus × ‘Snowdrift’ | ||||
---|---|---|---|---|---|---|
Planting depth | Lean frequency (%) | Average lean (cm) | Lean frequency (%) | Average lean (cm) | Lean frequency(%) | Average lean (cm) |
0 cm | 81.2azy | 2.8a | 69.2a | 1.7a | 63.1a | 1.4a |
5 cm | 57.6a | 1.5ab | 70.2a | 1.6a | 63.1a | 1.4a |
10 cm | 65.9a | 1.7ab | 67.5a | 1.4a | 56.1a | 1.3a |
15 cm | 65.1a | 1.4b | 68.6a | 1.6a | 46.1a | 0.9a |