安全剂AD-67保护玉米免受单嘧磺隆药害的作用及其机理  

The effect and mechanism of AD-67 in protecting maize from the phytotoxicity of monosulfuron

作　　者：叶非[1] 付颖[1] 徐伟钧 王爽[1] 

机构地区：[1]东北农业大学理学院,哈尔滨150030 [2]黑龙江省农业科学研究院,哈尔滨150086

出　　处：《植物保护》2010年第4期90-93,共4页Plant Protection

基　　金：中国博士后科学基金(20080430951);黑龙江省自然科学基金(B200602);黑龙江省政府博士后基金(LBH-Z07012);哈尔滨市科技创新人才研究专项资金(2006RFXXN005;2007RFQXN017);黑龙江省教育厅科学技术研究项目(11521038);东北农业大学博士启动基金项目

摘　　要：采用生物测定法研究了安全剂AD-67对除草剂单嘧磺隆造成玉米伤害的保护作用,并对其作用机理进行了初步探讨。结果表明:单嘧磺隆在浓度0.025～0.050mg/kg时,对玉米的生长有较为强烈的抑制作用;当AD-67的浓度在0.5～10mg/kg时,能不同程度地缓解单嘧磺隆对玉米的药害。当单嘧磺隆毒土浓度为0.025mg/kg,使用1mg/kgAD-67浸种处理,玉米的主根长和株高分别是对照的107.3%和100.82%;AD-67浸种处理的玉米,幼苗中谷胱甘肽(GSH)含量和乙酰乳酸合成酶(ALS)活性分别是对照的109.76%和113.33%。The protective effect and mechanism of AD-67 in reducing the phytotoxicity of monosulfuron to maize were studied by bioassay. The results showed that the growth indexes of maize were inhibited greatly when the concentration of monosulfuron was 0. 025-- 0. 050 mg/kg. The growth indexes were restored to different extents by using AD-67 with 0.5--10 mg/kg. The root length and plant height of maize were 107.3% and 100.82% of the control, respectively, with 0.025 mg/kg monosulfuron in soils and seeds soaked in 1 mg/kg AD-67. The content of GSH and the activity of ALS also increased to 109.76% and 113.33%, respectively.

关 键 词：AD-67 单嘧磺隆 GSH ALS 

分 类 号：S482.4[农业科学—农药学]