| 中国东北小麦白粉菌（Blumeria graminis Dc．speer）毒力频率分析 |
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| 引用本文： | 杨家书,曹远银,王志民,于泉林,杨英慧,杨乃成,齐永志.中国东北小麦白粉菌（Blumeria graminis Dc．speer）毒力频率分析[J].沈阳农业大学学报,1994(3). |
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| 作者姓名： | 杨家书 曹远银 王志民 于泉林 杨英慧 杨乃成 齐永志 |
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| 作者单位： | 沈阳农业大学植物免疫研究室，沈阳市新城子区农业技术推广中心，铁岭市植保站 |
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| 基金项目： | 国家八五重点科技攻关课题 |
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| 摘 要： | 本试验于１９８２，１９８７，１９８８和１９９２年在东北地区的辽宁海城、沈阳、大连和吉林公主岭４个观察圃中系统观测了含有不同抗白粉菌基因的小麦品种和拟等基因系的白粉病病情：Ｐｍ１、Ｐｍ５、Ｐｍ７及Ｐｍ３ａ或Ｐｍ３ｂ和Ｐｍ３ｃ的病情均达２０ＭＳ以上，感病严重．Ｐｍ２＋６，Ｐｍ２或Ｐｍ４抗性较强，病情仅达０～５ＨＲ．采用离体活动圃鉴定法观测表明：１９８７～１９８８年各病圃白粉菌出现频率较高的基因为：Ｖ７（６７．２％～８０．４％，平均７４．０％），Ｖ１（６７．９％～７８．１％，平均７３．１％），Ｖ３ｃ（６１．９％～７１．４％，平均６７．６％），Ｖ５（６２．３％～７３．１平均６７．３％），Ｖ３ｃ（４３．０％～５１．８％，平均４８．７％），Ｖ３ａ（３２．７％～４７．８％，平均３９．５％），Ｖ５（１５．６％～２６．５％，平均２０．２５％）；出现频率较低毒力基因为Ｖ２＋６（０％～１．６％，平均０．５１％），Ｖ２（２．１％～７．６％，平均４．０５％）和Ｖ４（５％～１２．６％，平均８．６％）。
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| 关 键 词： | 小麦白粉病 毒力频率 抗白粉病基因 |
An Analysis of Virulence Frequency of Blumeria graminis Dc. Speer in Northeastem China |
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| Yang Jiashu, Cao Yuanyin, Wang Zhimin,Yu Quanlin.An Analysis of Virulence Frequency of Blumeria graminis Dc. Speer in Northeastem China[J].Journal of Shenyang Agricultural University,1994(3). |
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| Authors: | Yang Jiashu Cao Yuanyin Wang Zhimin Yu Quanlin |
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| Abstract: | This paper reported powdery milew disease levels on differnet resistant varieties and near-isogenic lines, and virulence frequencies of the pathogen in the nurseries in Dalian, Shenyang,and Haicheng of Liaoning province and Gongzhuling of Jilin Province in northeastern China in 1982, 1987, 1988, and 1992.Varieties (Lines)carrying single genes(Pm0, Pm1, Pm5, Pm7, Pm3a, Pm3b, and Pm3c)were succeptible with disease degrees from 20 MS (Moderate Suscetible ) to 80 HS(Highly Suscceptible). Otherwise those carrying Pm2, Pm4 or Pm2+6 highly resistant with disease degrees below 5 HR (Highly Resistant).Correspondingly ,V1, V3a, V3b, V3c, V5 and V8 were found prevalent,V2 V4, V2+6 had very low frequencies,The results were compared with the parellel researth results in other provinces in other provinces in china. |
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| Keywords: | wheat powdery mildew virulence frequency Powdery mildew resistant genes |
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