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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (13): 312-318.

所属专题： 园艺

• 植物保护 农药 • 上一篇    下一篇

河南省苹果轮纹病菌对戊唑醇的敏感性检测

苏平 周增强 朱建兰 王丽 侯珲   

  • 收稿日期:2009-11-19 修回日期:2010-03-09 出版日期:2010-07-05 发布日期:2010-07-05

Sensitivity of Botryosphaeria berengeriana f.sp.piricola to Tebuconazole

  • Received:2009-11-19 Revised:2010-03-09 Online:2010-07-05 Published:2010-07-05

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摘要：

摘要：采用生长速率法测定了采自河南省苹果种植区的40个苹果轮纹病菌菌株（Botryosphaeria berengeriana f.sp.piricola）对戊唑醇的敏感性。结果表明：戊唑醇对40个菌株的EC50值在0.0172～1.6026μg/mL之间，平均值为0.3978±0.1171μg/mL。其中，菌株ZZ1（EC50 1.6026μg/mL）对戊唑醇的敏感性较低，LB1（0.0172μg/mL）对其最敏感，其毒力倍数是ZZ1的93.23倍。研究结果表明，河南地区的苹果轮纹病菌对戊唑醇比较敏感，未产生明显的抗药群体。建立了苹果轮纹病菌对戊唑醇抗药性的敏感基线。

关键词: 节水灌溉, 节水灌溉, 丙二醛, 细胞质膜透性, 渗透调节物质

Abstract:

Abstract: Forty isolates of Apple Ring Rot（Botryosphaeria berengeriana f.sp.piricola） were collected from typical and representative location of Henan Province.The sensitivity of these isolates to tebuconazole was tested by colonial growth-rate.The result showed that the 50% effective concentration values (EC50) to the 47 strains for tebuconazole ranged from 0.0172 to 1.6026 μg/mL, and the mean EC50 values ( ±Se ×t0. 05) were 0.3978±0.1171 μg/mL. Isolate ZZ1 (EC50 1.6026 μg/mL )showed the lowest sensitivity to tebuconazole, strain LB1(0.0172 μg/mL) was the most sensitive strain to tebuconazole, its toxicity ratio was 620.38-fold compared to strain ZZ1. The results suggested that the population of Botryosphaeria berengeriana f.sp.piricola Henan province is sensitive to tebuconazole and populations with significant resistance have not been observed. A sensitivity baseline of Botryosphaeria berengeriana f.sp.piricola isolates in Henan province was set up.