Table 1.

The soil water content and ECM colonization of Pinus tabulaeformis seedlings under different drought intensity treatments. (mean ± standard error)

Parameter	T1	T2	T3	Significance
Soil water content (%)	80	40	20
ECM colonization (%)	52 ± 6 b	60 ± 3 a	38 ± 6 c	**

Note: T1 = non-drought stress, T2 = moderate drought stress, T3 = severe drought stress. Data expressed as mean ± standard error (n = 6). Different lowercase letters indicate significant differences between the means by Tukey (HSD) test (P < 0.05); “*” indicates that the interaction is significant (P<0.05); “**” indicates that the interaction is extremely significant (P<0.01); “ns” indicates no interaction (P ≥ 0.05)