Effects of root pruning at planting and nursery planting depth in the container on root attributes 3 cm beyond the edge of the root ball one and two growing seasons after planting into the landscape.
| One growing season after planting GS 1 | Two growing seasons after planting GS 2 | |||
|---|---|---|---|---|
| Root attributes | Root pruning effect | Planting depth effect | Root pruning effect | Planting depth effect |
| Total number growing into landscape soil | Nz | N | N | N |
| Total number growing from the top of root ball | S | S | N | N |
| Total number growing from the bottom half of root ball | N | N | N | N |
| Total number or cross sectional area of circling roots inside root ball | N | N | S | N |
| Total cross sectional area growing into landscape soil | N | N | N | N |
| Total cross sectional area growing from the top half of root ball | S | N | N | N |
| Total cross sectional area growing from the bottom half of root ball | N | N | N | N |
| Mean cross sectional area growing into landscape soil | N | N | S | N |
| Mean cross sectional area growing from the top or bottom half of root ball | N | N | N | N |
| Mean diameter of five largest roots | N | N | N | N |
| Mean root spread radially | N | N | N | N |
↵zN = not significant; S = significant at P < 0.05.