TABLE 3.

Canopy, trunk, and root width (cm) in the groups.

Quantitative index	Canopy width	Trunk width	Root width
Depression group	7.53 ± 3.84**	1.67 ± 1.39**	1.29 ± 2.93
Sub-threshold group	10.54 ± 4.89*	3.38 ± 1.79	1.67 ± 2.32
Control	12.10 ± 4.78	3.73 ± 2.28	2.20 ± 4.82
F	14.28	11.75	0.966
P	0.000	0.000	0.517

*p < 0.05, **p < 0.01, post-hoc results, compared with control.