Figure 2.

Effects of NO and NH₄⁺:NO₃⁻ ratio on the contents of redox state of ascorbate and glutathione in mini Chinese cabbage leaves under low light stress. The seedlings cultivated in black containers filled with different solutions, CK (NH₄⁺:NO₃⁻ = 0:100); N (NH₄⁺:NO₃⁻ = 10:90); SNP (100 μmol/L); N + Hb (0.1%); N + L-NAME (25 μmol/L); N + NaN₃ (50 μmol/L) were treated for 7 days. Then the contents of AsA (A) and GSH (B) from mini Chinese cabbage leaves were analyzed. Bars indicated the SE (n = 3). Significant differences (p < 0.05) between treatments are indicated by different letters, for low light condition.