| 烟草黑胫病菌致病性分化和烟草品种的抗病性差异 |
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| 引用本文： | 梁元存,刘延荣,王玉军,王智发,张广民.烟草黑胫病菌致病性分化和烟草品种的抗病性差异[J].植物保护学报,2003,30(2):143-147. |
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| 作者姓名： | 梁元存 刘延荣 王玉军 王智发 张广民 |
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| 作者单位： | 山东农业大学植物保护学院,泰安,271018 |
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| 基金项目： | 国家烟草专卖局资助项目(961023) |
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| 摘 要： | 用游动孢子浸根接种法对我国主产烟区的117个烟草黑胫病菌(Phyto-phythora parasitica var.nicotianae)致病性测定结果表明，黑胫病菌茵株问致病性存在明显差异，病情指数范围4．66—84．30，强、中和弱致病性菌株各占11．1l％、58．97％和29．91％。对国内主要的59个烟草品种经室内和大田的抗病性鉴定表明，目前尚没有抗黑胫病菌的免疫品种，但不同烟草品种抗性差异明显，其中Coker371G、NC82、K346和单育三号等品种有较强的抗病性，且室内鉴定与大田鉴定结果基本一致。
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| 关 键 词： | 烟草黑胫病菌 致病性分化 品种 抗病性 游动孢子浸根接种法 |
| 收稿时间： | 2002/1/17 0:00:00 |
| 修稿时间： | 2002年1月17日 |
Pathogenicity differentiation of Phytophthom parasitica and the disease resistance difference of tobacco against black shank |
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| Liang Yuancun,Liu Yanrong,Wang Yujun,Wang Zhifa and Zhang Guangmin.Pathogenicity differentiation of Phytophthom parasitica and the disease resistance difference of tobacco against black shank[J].Acta Phytophylacica Sinica,2003,30(2):143-147. |
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| Authors: | Liang Yuancun Liu Yanrong Wang Yujun Wang Zhifa and Zhang Guangmin |
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| Institution: | College of Plant Protection, Shandong Agri. Univ., Tai''an 271018, China,College of Plant Protection, Shandong Agri. Univ., Tai''an 271018, China,College of Plant Protection, Shandong Agri. Univ., Tai''an 271018, China,College of Plant Protection, Shandong Agri. Univ., Tai''an 271018, China and College of Plant Protection, Shandong Agri. Univ., Tai''an 271018, China |
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| Abstract: | The pathogenicity of 117 strains of Phytophthora parasitica var. nicotianae collected from 9 provinces in China was tested for the evident differentiation of pathogenicity among different strains by severity of black shank of seedling after inoculation with zoospores. Disease index ranges from 4. 66 to 84.30. 59 tobacco cultivars have a great difference in disease resistance against black shank. Coker 371G, K346, and NC82 are highly resistant but no cultivars is immune. |
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| Keywords: | Phytophthora parasitica pathogenicity differentiation disease resistance |
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