农药学学报2011，Vol.13Issue(4)：419-422,4.DOI:10.3969/i.issn.1008-7303.2011.04.15
2,2,2-三氟乙基苯并[1,2,3]噻二唑-7-甲酸酯对黄瓜霜霉病的诱导抗病性
Resistance of cucumber to downy mildew induced by novel elicitor candidate, TBTC ( 1,2,3- benzothiadiazole-7- carboxylic acid,2,2,2-trifluoroethyl ester)
摘要
Abstract
Abstract:The protective effect of novel elicitor candidate, 1,2,3-benzothiadiazole-7-carboxylie acid, 2,2,2-trifluoroethyl ester (TBTC) was studied by surface spraying on the cucumber (Cucumis sativus L. ) leaves to induce the resistance against the biotrophic downy mildew Pseudoperonospora cubensis in pot and field experiments. The results of pot experiment showed that the control afficacy of TBTC was 77.50% ± 1. 79% at concentration of 250 mg (a. I. )/L,the control afficacy of positive control BTH was 71. 72% ± 2. 58% at the same condition, while that of dimethomorph 500 WP was only71.46% ±3. 01% at concentration of 500 mg (a. I. )/L. Based on the results of two-year field investigations, the control afficacy varied at an acceptable range for TBTC, BTH and dimethomorph 500 WP. The highest control afficacy of TBTC at 250 mg (a. I. )/L,BTH at 250 mg (a. I. )/L and dimethomorph 500 WP at 500 mg a. I. /L were 83.94% ±2.09% ,72. 39% ±2. 91 % and 89. 08% ± 1.95% , respectively. The results suggested that TBTC could induce resistance of cucumber against P. Cubensis.关键词
2,2,2-三-氟乙基苯并[1,2,3]噻二唑-7-甲酸酯/植物抗病激活剂/黄瓜霜霉病/诱导抗病性Key words
1,2, 3-benzothiadiazole-7-carboxylic acid, 2, 2, 2-trifluoroethyl ester ( TBTC ) / elicitor candidate/ Pseudoperonospora cubensis/ induced resistanc分类
农业科技引用本文复制引用
石延霞,王微微,柴阿丽,谢学文,张凯丽,李宝聚..2,2,2-三氟乙基苯并[1,2,3]噻二唑-7-甲酸酯对黄瓜霜霉病的诱导抗病性[J].农药学学报,2011,13(4):419-422,4.基金项目
国家重点基础研究发展计划(973项目)(2010CB126100) （973项目）
农业部园艺作物遗传改良重点开放实验室项目. （）
