Fig. 1

Ascorbate peroxidase (APX), monodehydrogenase reductase (MDHAR), dehydrooxidase (DHAR) (nmol mg protein⁻¹ min⁻¹), and catalase (CAT) activity (µmol mg⁻¹, protein min⁻¹) of tomato plants under soil water contents of 75–70% and 55–50% in the different soil textures of China. Treatment values presented for comparison are the means of three replications (± SE, standard error). Means followed by different letters are significantly different (p ≤ 0.05) according to Tukey’s test