【摘要】 用４０μｇ／Ｌ的ＣＴ，ＥＫ，ＥＨ，ＰＡＰ和ＭＡＰ在体外钝化ＣＭＶ１ｈ后接种，枯斑数依次降低达１５．２％，８８．５％，６４％，２８．１％和６１．６％．在接种ＣＭＶ前２４ｈ喷施８０μｇ／Ｌ的ＣＴ，ＥＫ和ＥＨ，预防效果依次为９２．４％，９０％和８２％，将浓度提高到１００μｇ／Ｌ时３种药剂能完全抵抗ＴＭＶ的摩擦接种和ＣＭＶ的３头蚜虫接种。接种ＣＭＶ２４ｈ后分别喷施８０μｇ／Ｌ的ＣＴ，ＥＫ和ＥＨ，病情指数依次为０．０９，０．２９和０．１１；若间隔喷施２次则能使９３．２％，８９．６％和７４．１％的病株恢复正常。更多还原

【Abstract】 When mixed at 40 μg/L CT,EK,EH,PAP and MAP with the same volume of 2% infected leaf sap of cucumber mosaic virus (CMV) for 1 h separately,and then applied to Chenopodium amaranticolor,they redused necrotic local lesion numbers by as much as 15.2%,88.5%,64%,28.1% and 61.6% respectively.At a concentration of 80 μg/L appilication of CT,EK and EH 24 h before CMV inoculation,protein effects of 92.4%,90% and 82% were obtained;at 40 μg/L,they completely inhibit TMT and CMV infection by sap or aphid transmissible inoculation,disease severity was 0.09,0.29 and 0.11 respectively.Furthermore,with two times applications of 80 μg/L,CT,EK and EH can restore the infected seedlings as much as 93.2%,89.6% and 74.1%.更多还原