| GB | Glycinebetaine |
| WS | Water stress |
| ROS | Reactive oxygen species |
| LA | Leaf area |
| SOD | Superoxide dismutase |
| POD | Guaiacol peroxidase |
| APX | Ascorbate peroxidase |
| V3 | Three-leaf stage |
| V5 | Five-leaf stage |
| H2O2 | Hydrogen peroxide |
| O2− | Superoxide anion |
| RWC | Relative water content |
| CK | Maize planted in normal field capacity |
| FC | Field capacity |
| PBS | Phosphate buffer solution |
| OD | Absorbance of the mixture |
| FW | Fresh weight |
| D value | Comprehensive evaluation value |
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