Effect of nursery container type and root pruning at landscape planting on root attributes eight months later.
| Nursery containerz | Root pruningy | % circumference circled inside position of 57 L container wallx | % five largest roots >5 mm diameter grew into soilw | % circumference without roots >5 mm 5 cm beyond position of 57 L container wall |
|---|---|---|---|---|
| PC | Yes | 26 cv | 78 a | 18 d |
| No | 9 d | 29 c | 65 a | |
| SC | Yes | 54 b | 38 b | 27 c |
| No | 69 a | 16 d | 57 b |
↵z Trees grown in either porous- (PC) or solid-walled (SC) 3.8 L then 9.5 L nursery containers prior to shifting into 57 L solid-walled containers, then planted into landscape soil.
↵y Trees were root pruned by shaving away the outer 3 to 4 cm periphery of the 57 L root ball when planted into the landscape.
↵x Percent trunk circumference circled with roots >5 mm diameter from either propagation container, 3.8, and/or 9.5 L container position.
↵w Percent of the five largest diameter roots (diameter measured just beyond root collar) that grew beyond the periphery of the 57 L container position following the largest root at forks.
↵v Means in a column with a different letter are statistically different at P < 0.0001; n = 10, averaged across propagation container type due to insignificant interactions.