| 中国稗草病原真菌对稗草及水稻的致病性 |
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| 引用本文： | 陈勇,倪汉文.中国稗草病原真菌对稗草及水稻的致病性[J].中国生物防治,1999,15(2):73-76. |
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| 作者姓名： | 陈勇 倪汉文 |
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| 作者单位： | 中国农业大学农学系杂草室,北京,100094 |
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| 基金项目： | 农业部“九五”高新技术与基础研究重点科研项目 |
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| 摘 要： | 从稗草病叶上分离到８种病原真菌，它们是：链格孢、棒弯孢、月弯孢、画眉草弯孢、橙黄树座霉、紫附球菌、Ｂｉｐｏｌａｒｉｓｓｃｈｏｅｍａｋｅｒ和尖角突脐孢。前４种病原菌对水稻有致病作用。在对水稻无致病作用的４种病原菌中，橙黄树座霉、紫附球菌和Ｂ．ｓｃｈｏｅｍａｋｅｒ对稗草的致病力弱，而尖角突脐孢对４．５叶期以下的稗草有极强的致病作用。寄主范围测定表明尖角突脐孢除了轻度侵染玉米幼苗，对其它主要作物如水稻、小麦、大豆、棉花、谷子、豌豆、芸豆、向日葵、芝麻、大麻无致病作用。本研究结果表明尖角突脐孢在我国可作为微生物除稗剂的候选菌
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| 关 键 词： | 尖角突脐孢 微生物除稗剂 稗草 水稻 |
Pathogenicity of Indigenous Fungi to Echinochloa crusgalli and Rice |
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| CHEN Yong,NI Han-wen.Pathogenicity of Indigenous Fungi to Echinochloa crusgalli and Rice[J].Chinese Journal of Biological Control,1999,15(2):73-76. |
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| Authors: | CHEN Yong NI Han-wen |
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| Abstract: | pathogenic fungi were isolated from naturally infected Echinochloa crusgalli var mitis (Pursh) Peterm in China They were identified as Curvularia lunata, Cclavata, Ceragrosticlis, Altarnaria alternata, Exserohilum monoceras, Epicoccum purpurascens, Dendrodochium aurantiacum, and Bipolaris schoemaker. Among them,Clunata, Cclavata, Ceragrosticlis, and Aalternata infected rice and the others did not Under the condition of 48h dew period, Bschoemaker, Daurantiacum and Epurpurascens did not cause death of Ecrusgalli seedlings at the 2-3 leaf stage but Emonoceras provided good control of the weed at the 1-45 leaf stage Initial host range testing was done with Emonoceras The pathogen did not infect rice, wheat, cotton, soybean, sunflower, sesame, hemp, peanut, millet, kidney bean, sheathed monochoria, and hairy crabgrass, but slightly infected corn E monoceras is a potential agent as a mycoherbicide to control barnyardgrass in rice in China |
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| Keywords: | Exserohilum monoceras bioherbicide Echinochloa crusgalli rice |
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