Figure 5

Effect of magnetic field exposure on antioxidant enzymes in germinating tomato seeds at different duration of imbibition [superoxide dismutase (units mg⁻¹ protein), catalase (nmol H₂O₂ reduced min⁻¹ mg⁻¹ protein), ascorbate peroxidase (µmol ascorbate oxidized min⁻¹ mg⁻¹ protein)]. Data represent mean ± S.E. of four biological replications. Significant difference between treatments is indicated with the p value according to Student’s t test. ns = non significant.