| Mung beans soaked in -0.1MPa PEG solution were treated by extremely low frequency pulsed electric field （ELF-PEF）with peak electric field strength of 100 kV·m-1, pulse width of 80 ms, and pulse frequency of 1 Hz. Traits like fresh weight, spontaneous luminescence, delayed luminescence, malondialdehyde (MDA) and superoxide dismutase (SOD) activity during mung beans germination were investigated. The fresh weight, spontaneous luminescence and delayed luminescence integral intensity in germinating mung beans were 28.58%, 78.35% and 40.6%, respectively under PEG stress, indicating that ELF-PEF can accelerate the physiological metabolismand alleviate cells injury under drought stress. Although with increased SOD activity and simultaneously reducing MDA content, the oxidation damage caused by drought stress was alleviated by ELF-PEF in germinating mung beans. The promoting effect of ELF-PEF on capillary water absorption and metabolism water absorption in cells may be the cause of alleviating drought injury. |