Table 1.

The correlation analysis on the silicon and related indexes of G. uralensis under NaCl stress.

	SS activity	SPS activity	GS activity	Total sugar	Total nitrogen	NR activity	dry weight	Leaves silicon	Stem silicon	Root silicon
SS activity		0.734**	− 0.070	0.286*	0.554**	0.663**	0.708**	0.173	− 0.099	0.421**
SPS activity			0.147	0.406**	0.621**	0.717**	0.701**	0.190	− 0.210	0.467**
GS activity				0.424**	0.406**	− 0.073	0.263*	0.180	− 0.030	0.306**
Total sugar					0.479**	0.411**	0.399**	0.148	− 0.336**	0.225
Total nitrogen						0.374**	0.796**	0.404**	0.092	0.791**
NR activity							0.534**	0.078	− 0.323**	0.205
Dry weight								0.388**	0.106	0.658**
Leaves silicon									0.709**	0.675**
Stem silicon										0.460**
Root silicon

**Means significant differences by Duncan’s multiple range tests (P < 0.01); *means significant differences by Duncan’s multiple range tests (P < 0.05).