Table 2.

Na⁺, K⁺ and Ca²⁺ concentrations in aboveground and underground parts of P. simonii×P. nigra.

Sample	Na (g·kg-1)		K (g·kg-1)		Ca (g·kg-1)
	aboveground	underground	aboveground	underground	aboveground	underground
NMN	0.11 ± 0.029 c	1.22 ± 0.29 b	23.16 ± 1.40 b	12.53 ± 0.52 b	3.92 ± 0.29 b	2.18 ± 0.089 b
AMN	0.62 ± 0.074 bc	2.64 ± 0.65 b	31.32 ± 3.56 b	20.34 ± 1.29 a	4.62 ± 0.35 b	3.14 ± 0.20 a
NMS	1.18 ± 0.21 b	3.66 ± 0.25 b	27.29 ± 1.06 b	12.31 ± 0.14 b	4.67 ± 0.14 b	2.16 ± 0.042 b
AMS	6.43 ± 0.29 a	7.55 ± 0.95 a	44.52 ± 1.090 a	13.36 ± 0.24 b	7.58 ± 0.20 a	2.18 ± 0.11 b
P saline-alkali	**	**	**	**	**	**
P AMF	**	NS	NS	**	**	**
P saline-alkali*AMF	**	**	**	**	**	**

NMN means no F. mosseae inoculation and no saline-alkali stress; AMN means inoculation with F. mosseae without saline-alkali stress; NMS means application of saline-alkali stress without F. mosseae inoculation;AMS means inoculation with F. mosseae and application of saline-alkali stress. Data expressed as mean ± standard error (n = 3). Different lowercase letters indicate significant differences between the means by Tukey’s test (P < 0.05). Significant effect of two-way ANOVA analysis: “**” indicates P < 0.01; “NS” indicates no interaction (P ≥ 0.05).