试验表明木霉HT-03对番茄幼苗叶绿素及POD、PPO、SOD活性都产生了一定的影响。50倍液对叶绿素的促进作用最为显著。高浓度的发酵液对PPO活性影响较大,最适浓度为原液稀释50倍,SOD活性在处理前3 d变化不大,但从处理后4 d开始大幅度增加,处理后7 d达到高峰。 Trichoderma HT-03 had some effects on chlorophyll, POD, PPO and SOD activities of tomato seedlings. 50 times the promotion of chlorophyll the most significant role. High concentration of fermentation broth had a great effect on the activity of PPO. The optimal concentration was 50 times diluted with stock solution. SOD activity did not change much at 3 days before treatment, but increased sharply at 4 days and reached the peak at 7 days after treatment.