Fig. 4From: Gamma-aminobutyric acid (GABA) alleviates salt damage in tomato by modulating Na+ uptake, the GAD gene, amino acid synthesis and reactive oxygen species metabolismChlorophyll contents of tomato seedlings under NaCl stress with or without GABA for 2 (a), 4 (b) and 6 (c) d. Note: Each value is the mean ± SD of three independent experiments. Different lower-case letters in each column shape indicate significant difference at P < 0.05 by Duncan’s testBack to article page