Abstract：In order to screen the chemicals，which could induce resistance to CGMMV in bottle gourd 〔Lagenaria siceraria（ Molina） Standl.〕，2,1,3-Benzothiodiazole（ BTH），Brassinolide（ BL），Chitosan Oligosaccharide（ CTS） and Salicylic Acid（ SA），were applied to bottle gourd seedlings to test their induced resistance in this experiment. BTH，BL，CTS and SA were sprayed before the plants were inoculated with CGMMV.
Their relative control effects were evaluated.The results showed that 3 days before innoculation，treatments with BTH（ 0.050 g·L-1），BL（ 5.0×10-5 g·L-1），CTS（1.0 g·L-1），SA（ 0.138 g·L-1 ） could significantly reduce the disease indexes. Among them，5.0×10-5 g · L-1had the best control effect，reaching 70.38%. Further studies indicated that after spraying BL，CTS，SA，3 days was the optimum inducing time，while after spraying BTH，
the optimum inducing time was 1 day.Those 4 chemicals all showed potentials in inducing bottle gourd to produce resistance to CGMMV. Their differences in resistance were related with inducers and inducing times.
李俊香 , 古勤生*. 四种化学诱抗剂防治黄瓜绿斑驳花叶病毒病的试验初报[J]. 中国蔬菜, 2015, 1(7): 40-.
LI Jun-Xiang- , GU Qin-Sheng-*. Preliminary Report about Using 4 Chemical Inducers to Control Cucumber green mottle mosaic virus Disease. , 2015, 1(7): 40-.
