6%抗坏血酸水剂对刺梨抗白粉病的诱导效应  

Ascorbic Acid 6% AS Inducing Resistance against Sphaerotheca sp. in Rosa roxburghii Tratt

作　　者：严凯[1,2] 罗泽丽 胡芳丽[1] 伍廷辉 田华松[1] 黄荣茂[3] 严金成 

机构地区：[1]六盘水师范学院,贵州六盘水553000 [2]六盘水润泽药业有限公司,贵州六盘水553000 [3]贵州大学绿色农药与农业生物工程教育部重点实验室,贵阳550025

出　　处：《农药》2017年第7期528-530,共3页Agrochemicals

基　　金：贵州省科技合作计划项目(黔科合LH字[2015]7621号)

摘　　要：[目的]研究6%抗坏血酸水剂对刺梨白粉病的诱导抗性。[方法]采用抗坏血酸水剂处理刺梨后接种刺梨白粉病菌(Sphaerotheca sp.),通过调查病情指数,确定诱导最适时间、最适质量浓度以及叶绿素含量,分析抗坏血酸水剂诱导植物产生抗病能力。[结果]质量浓度60 mg/L的抗坏血酸水剂对刺梨植株诱导处理后第3天表现出最佳诱导抗性,诱导效果61.45%,叶绿素含量增长率75.11%。[结论]抗坏血酸水剂能有效诱导刺梨植株对白粉病产生系统抗性,提高植株抗白粉病的能力。[Aims] The paper aims to study the inducing resistance of ascorbic acid 6% AS to Sphaerotheca sp. in Rosa roxburghii Tratt. [Methods] Rosa roxburghii Tratt was inoculated with Sphaerotheca sp. after pretreated with ascorbic acid 6% AS. By investigating the disease index, determining the optimal time, optimal concentration and chlorophyll content, the inducing resistance ability by ascorbic acid 6% AS was analyzed. [Results] The third day after 60 mg/L ascobic acid 6% AS treatment, the inducing effect reached 61.45% and chlorophyll content increasing rate was 75.11%. [Conclusions] Ascorbic acid 6% AS could induce systemic resistance and enhance the ability of resisting Sphaerotheca sp. in Rosa roxburghii Tratt.

关 键 词：6%抗坏血酸水剂 刺梨 白粉病 诱导抗性 病情指数 诱导效果 

分 类 号：S436.619[农业科学—农业昆虫与害虫防治]