Figure 2.

Malondialdehyde, ascorbic acid, glutathione, and H₂O₂ contents. (A) H₂O₂ (µmol·mg⁻¹ DM); (B) Lipid peroxidation (malionaldehyde equivalents; μmol·g⁻¹ DM); (C) Ascorbic acid (AsA; μmol·mg⁻¹ DM); (D) Glutathione (GSH; μmol·mg⁻¹ DM) of milk thistle under different water-deficit stress (100% water capacity, 75% water capacity, and 50% water capacity) at 6, 12, and 18 weeks after planting (WAP). Means ± SDs, n = 3 from three independent experiments. Different letters above bars within treatment groups are significantly different (p < 0.05).