氨基寡糖素与吡唑醚菌酯混用防治小麦白粉病的减施增效作用  

Effect of reduced application of pesticides during the control of wheat powdery mildew by mixed use of amino-oligosaccharins and pyraclostrobin

作　　者：吴玉星 王亚娇[1] 韩森 栗秋生[1] 孔令晓[1] WU Yu-xing;WANG Ya-jiao;HAN Sen;LI Qiu-sheng;KONG Ling-xiao(Plant Protection Institute,Hebei Academy of Agricultural and Forestry Sciences Integrated pest Management Center of Hebei Province Key Laboratory of Integrated Pest Management on Crop in Northern Region of North China,Ministry of Agriculture,P.R.China,Baoding 071000,Hebei,China)

机构地区：[1]河北省农林科学院植物保护研究所,河北省农业有害生物综合防治工程技术研究中心,农业农村部华北北部作物有害生物综合治理重点实验室,河北保定071000

出　　处：《农药》2022年第6期449-452,464,共5页Agrochemicals

基　　金：国家重点研发计划项目(2017YFD0201707)。

摘　　要：[目的]明确氨基寡糖素与吡唑醚菌酯减施联合应用防治小麦白粉病协同增效作用及初步机制。[方法]温室盆栽法和田间药效试验相结合测定防效,比色法测定植物抗性酶活性等相关生理生化指标。[结果]氨基寡糖素与吡唑醚菌酯推荐剂量减施30%混合使用,可使吡唑醚菌酯防治效果提高36.64%~41.57%,恢复或高于推荐剂量防效,并能提高小麦防御酶活性,降低叶片细胞损伤。[结论]氨基寡糖素与吡唑醚菌酯混用防治小麦白粉病,可降低吡唑醚菌酯用量约30%。[Aims] This study aims to clarify synergistic effect and preliminary mechanism of the mixed use of amino-oligosaccharins and pyraclostrobin during the control of wheat powdery mildew. [Methods] The control efficacy was measured using potted plant test and field efficacy trials by means of spraying method. Also, the physiological and biochemical indicators like protective enzymes were measured via colorimetric method. [Results] The control effect of 30% reduction dosages of pyraclostrobin can increase 36.64-41.57% by mixing of amino-oligosaccharins. This effect level was significantly higher or equated than the recommended dosage. The activities of protective enzymes increased after spraying amino-oligosaccharins on wheat. The damage of the mesophyll cells reduced as well.[Conclusions] Therefore, amino-oligosaccharins can reduce dosage of pyraclostrobin at 30% for control of wheat powdery mildew.

关 键 词：小麦白粉病 氨基寡糖素 吡唑醚菌酯 农药减施 防御酶 

分 类 号：S482.2[农业科学—农药学]