大黄提取液防治黄瓜白粉病的初步研究
DOI:
作者:
作者单位:

作者简介:

通讯作者:

基金项目:

河北省科技攻关项目;0122017317;


Control Effect of the Extracts from Rheum palmatum on Powdery Mildew of Cucumber
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    对中草药大黄提取液防治黄瓜白粉病的保护活性、稳定性、持效期及押菌谱等作了初步研究。结果表明,大黄提取液的100倍液防效迭90%以上,优于粉锈宁(15%WP)1000倍液的防效(73.41%);其酸碱稳定性与热稳定性都非常强;保护作用的持效期至少可达6d;押菌谱测试结果表明,它对供试的小麦根腐病菌Cochliobolus sativus等20种真菌都表现出一定的抑制作用。

    Abstract:

    In this paper, the extract from Rheum palmatum was tested for prevention effect on powdery mildew of cucumber,stability,duration of the efficacy and restraint spectrums of fungi.The results demonstrated that 100-fold Rheum palmatum extraction was effective to control the disease and its efficacy was superior to 15% WP Triadimefon 1000-fold,which was up to 90.14%. The efficacy was stable in different temperatures and pH values.The duration of the preventive efficacy of Rheum palmatum extraction to S.fuliginea could last over 6 days,and also significantly to restrain many other fungi such as Cochliobolus sativus,Exserohilum turcicum ,et al.

    参考文献
    相似文献
    引证文献
引用本文
分享
文章指标
  • 点击次数:
  • 下载次数:
历史
  • 收稿日期:
  • 最后修改日期:2002-10-31
  • 录用日期:
  • 在线发布日期: