Abstract: Gaertn seeds were treated with different electric field strength for five minutes.After being cultured for nine days in room temperature,the contents of MDA and the activity of POD and SOD were tested.The results show that,in condition of normal moisture and room temperature,different electric field strength have different effects on POD,SOD and MDA.The changed degree of the MDA(malon-di-aldehyde) is from -5.8% to 38.9%,of the SOD(superoxide dismutase) from -43.4% to 92.6% and of the POD(peroxidase) from -23.2% to 88.2%.

Key words: electric field, gaertn, enzyme activity