侯珲;朱建兰;周红平;徐红霞;

• 1:中国农业科学院郑州果树研究所
• 2:甘肃农业大学植物保护系
• 3:中国农业科学院郑州果树研究所
• 4:甘肃农业大学植物保护系 郑州 450009 甘肃农业大学植物保护系

摘要(Abstract)：

研究了BTH和水杨酸(SA)作为诱导剂在不同浓度,不同时期对甜瓜抗白粉病的诱导作用。采用盆栽甜瓜植株,喷施诱导剂,然后接种甜瓜白粉菌的方法测定这2种诱导剂对甜瓜的诱导效果。结果表明2种诱导剂均对甜瓜有明显的诱导作用。BTH最佳诱导浓度为50μg／mL,SA为25μg/mL,平均诱导效果分别为86,6％和83．7％。在最佳诱导浓度下,2种诱导剂诱抗的持效期至少可达17 d。在2—8叶期,BTH和SA处理均有良好的诱导效果,且差异不显著。诱导剂本身对甜瓜白粉病菌分生孢子萌发及菌丝生长无明显影响。

关键词(KeyWords)： 甜瓜;白粉病;诱导抗病性;诱导效果

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 侯珲;朱建兰;周红平;徐红霞;

Email:

DOI: 10.13925/j.cnki.gsxb.2006.05.020

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