Gamma-aminobutyric acid (GABA) alleviates salt damage in tomato by modulating Na+ uptake, the GAD gene, amino acid synthesis and reactive oxygen species metabolism

Table 1 Correlation analysis between phenotype and physiological index

Index	Salt damage index	Growth rate of height	Chla+b Content	Fresh weight	Na⁺ content	O₂^·- productive rate	H₂O₂ content	MDA content
Salt damage index	1.000	−0.885**	−0.962**	− 0.799**	0.979**	0.828**	0.918**	0.876**
Growth rateof height		1.000	0.913**	0.863**	−0.942**	−0.837**	− 0.920**	−0.820**
Chl(a + b) content			1.000	0.871**	−0.974**	−0.861**	− 0.979**	−0.897**
Fresh weight				1.000	−0.924**	−0.781**	− 0.911**	−0.758**
Na⁺content					1.000	0.824**	0.997**	0.921**
O₂^·-productive rate						1.000	0.850**	0915**
H₂O₂content							1.000	0.886**
MDA content								1.000

Note:‘*‘shows significant correlation at the level of p < 0.05, ‘**‘shows extremely significant correlation at the level of p < 0.01

ISSN: 1471-2229