Abstract：In order to identify the resistance of tomato to late blight（ Phytophthora infestans）induced by benzothiadiazole，lentinan，chitosan and amino-oligosaccharin，this study determined the bacteriostatic activity of the above 4 elicitors．The results showed that these 4 elicitors had no significant bactericidal activity，and their inhibitory effects were generally less than 30%. The results of pot experiment indicated that the effects of induced resistance of these 4 elicitors with different concentrations against tomato in seedling stage were good．Among them，2% chitosan（ AS） at concentration of 500 mg·L-1 was 90.06%，which has the best control efficiency．The results of field experiment indicated that the effects of induced resistance of these 4 elicitors with different concentrations against tomato late blight in adult-plant stage were over 70%（ except the treatment of 2% chitosan AS at concentration of 125 mg·L-1）．The better treatments were 1% benzothiadiazole（ EW）at concentration of 50 mg·L-1 and 3% amino-oligosaccharin AS at concentration of 100 mg·L-1．Their control efficiencies were 94.71% and 95.89%，respectively．
李少波, 石延霞, 刘君丽, 谢学文, 李宝聚. 4 种诱抗剂诱导番茄抗晚疫病的初步效果[J]. 中国蔬菜, 2013, 1(12): 49-54.
LI Shao-Bo, SHI Yan-Xia, LIU Jun-Li, XIE Xue-Wen, LI Bao-Ju. Preliminary Effects of 4 Resistance Inducers on Tomato Resistance to Late Blight. , 2013, 1(12): 49-54.