Fig. 5

Effects of exogenous MT on membrane lipid peroxidation degree in leaves of M9-T337 seedlings under saline-alkaline stress. CK represents watering with a 1/2 concentration of Hoagland nutrient solution only; SA represents the application of 100 mmol·L⁻¹ composite saline-alkaline solution based on the control; MT represents the spraying of 200 μmol L⁻¹ exogenous MT based on the control; MS represents the spraying of 200 μmol L⁻¹ exogenous MT based on SA; HS represents the spraying of 100 μmol L⁻¹ p-CPA on the basis of MS. A H₂0₂; B O₂⁻; C Relative conductivity (REC); D Malonaldehyde (MDA); E SOD; F POD; G CAT. Vertical bars represent the standard errors of the means (three replicates. Data show the mean ± SE (n = 3). Different lowercase letters indicate significant differences between treatments with P < 0.05