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Table 1 Correlation analysis between phenotype and physiological index

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

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