Effect of propagation container type on roots (>1 mm diameter) of mahogany harvested six months (January 2010) after shifting into 3.8 L containersz.
| Propagation container (liner) type | % trunk circled at liner wall position | % trees graded as cully at liner wall position | Root system visualx imprint from liner wall (1–5) | Root depth just beyond position of the liner wall (mm) |
|---|---|---|---|---|
| SM | 29 bw | 20 b | 2.6 b | 47.3 b |
| EP | 2 c | 0 b | 1.4 c | 52.1 ab |
| EPS | 78 a | 79 a | 4.6 a | 55.7 a |
↵z Values for the same attributes were similar for trees in 9.5 L containers (data not shown).
↵y Root cull according to Florida Grades and Standards for Nursery Plants (Anonymous 1998).
x 1 = no visible deflection or retained “cage” formed by deflected roots at the position of the propagation liner; 5 = highly visible “cage” formed by deflected roots at the liner.
↵w Means in a column with a different letter are statistically different at P < 0.05; n = 20 averaged across 3.8 L container type due to insignificant interaction.
Note: Roots measured just beyond the propagation container position; trees not root pruned when shifting to 3.8 L containers.