Root pruning prior to field nursery plantingz | Percent cullsy | Percent trunk with circling rootsx | Anchorage ratingw |
---|---|---|---|
Yes | 66 bv | 43 b | 3.5 b |
No | 86 a | 64 a | 3.8 a |
↵z Liner container root ball sides sliced in six places top to bottom when planted into field, and when shifting into 38 and 57 L containers.
↵y Evaluated anywhere in root ball according to Anonymous (1998).
↵x Percent trunk with roots > 5 mm diameter circling or growing tangent to the trunk.
↵w Anchorage rating the day after digging field nursery trees with a tree spade originally planted from three liner container sizes; 1 = loose, 5 = firm; trunk was rocked back and forth three times at its natural frequency.
↵v Means in a column with a different letter are statistically different at P < 0.05; n = 30, averaged across liner container size and field root pruning season due to insignificant interaction (P > 0.18).