| 不同地理种群茶尺蠖对EoNPV的敏感性差异研究 |
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| 引用本文： | 席羽,殷坤山,肖强.不同地理种群茶尺蠖对EoNPV的敏感性差异研究[J].茶叶科学,2011,31(2):100-104. |
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| 作者姓名： | 席羽 殷坤山 肖强 |
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| 作者单位： | 1. 中国农业科学院茶叶研究所,浙江 杭州 310008; 2. 中国农业科学院研究生院,北京 100081 |
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| 基金项目： | 科技基础性工作专项(2008FY210500); 公益性行业(农业)科研专项(nyhyzx07-021) |
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| 摘 要： | 采集来自浙江、湖南、湖北和江苏省的7个不同地理种群茶尺蠖,用茶尺蠖核型多角体病毒（EoNPV）进行室内生物测定,结果表明不同地理种群茶尺蠖对EoNPV敏感性存在明显差异。浙江杭州种群和江苏宜兴种群对EoNPV的敏感性较高,饲毒后11d幼虫全部死亡,致死中浓度（LC50）分别为8.32×104PIB/mL和8.61×104PIB/mL;其他5个地理种群茶尺蠖对EoNPV的敏感性较低,饲毒后11d的死亡率均在30%以下,致死中浓度LC50在1.35×107~6.03×107PIB/mL之间;其中敏感性最低的浙江衢州种群和敏感性最高的江苏宜兴种群毒力差异达724.5倍。
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| 关 键 词： | 茶尺蠖 地理种群 EoNPV 生物测定 敏感性差异 |
| 收稿时间： | 2010-09-20 |
The Susceptibility Difference against EoNPV in Different Geographic Populations of Tea Geometrid (Ectropis oblique Prout) |
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| XI Yu,YIN Kun-shan,XIAO Qiang.The Susceptibility Difference against EoNPV in Different Geographic Populations of Tea Geometrid (Ectropis oblique Prout)[J].Journal of Tea Science,2011,31(2):100-104. |
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| Authors: | XI Yu YIN Kun-shan XIAO Qiang |
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| Institution: | 1. Tea Research Institute of Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; 2. Graduate school of Chinese Academy of Agricultural Sciences, Beijing 100081, China |
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| Abstract: | The experiment of bioassay among 7 different geographic populations of tea geometrid was conducted to investigate the susceptibility difference against EoNPV.The results indicated that,there was a significant susceptibility difference against EoNPV in different geographic populations.Hangzhou population(HZ) and Yixing population(YX) have higher degree of susceptibility than that of others,and all larvae died in the 11th day after fed with EoNPV,with the median lethal concentration values were 8.32×104 PIB/mL and 8.61×104 PIB/mL respectively.The other 5 populations showed lower susceptibilities,and the mortality rates were under the 30% after 11-day EoNPV feeding,the median lethal concentration values were between 1.35×107 PIB/mL and 6.03×107 PIB/mL.Compared with the susceptible population(YX),the virulence ratio of EoNPV on the resistant population(Quzhou population,QZ) reached up to 724.5 fold. |
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| Keywords: | Ectropis oblique Prout geographic population EoNPV bioassay susceptibility difference |
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