| 西藏秋播燕麦苗期褐斑病病原鉴定及生物学特性研究 |
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| 引用本文： | 何苏琴,荆卓琼,丁文娇,赵桂琴,金涛.西藏秋播燕麦苗期褐斑病病原鉴定及生物学特性研究[J].草原与草坪,2011(5):30-33. |
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| 作者姓名： | 何苏琴 荆卓琼 丁文娇 赵桂琴 金涛 |
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| 作者单位： | 甘肃省农业科学院植物保护研究所;甘肃省农业科学院畜草与绿色农业研究所;甘肃农业大学草业学院;西藏自治区农牧科学院农业研究所 |
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| 基金项目： | 现代农业产业技术体系建设专项(nycytx-14)资助 |
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| 摘 要： | 通过病原菌的分离、回接及病原菌形态学鉴定,将西藏秋播燕麦褐斑病的病原鉴定为麦根腐平脐蠕孢（Bipolaris sorokiniana）。病菌菌丝在5～35℃均可生长,最适生长温度30℃;在10～30℃均可产孢,20℃时的产孢量最大。培养温度不同,孢子大小亦不同,20℃时孢子最大;15℃时孢子隔膜数最多。分生孢子在10%...
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| 关 键 词： | 燕麦 褐斑病 麦根腐平脐蠕孢 生物学特性 寄主范围 |
Identification and biological characteristics of pathogen of oat brown leaf spot in Tibetan |
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| HE Su-qin,JING Zhuo-qiong,Ding Wen-jiao,ZHAO Gui-qin,JIN Tao.Identification and biological characteristics of pathogen of oat brown leaf spot in Tibetan[J].Grassland and Turf,2011(5):30-33. |
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| Authors: | HE Su-qin JING Zhuo-qiong Ding Wen-jiao ZHAO Gui-qin JIN Tao |
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| Institution: | 1.Institute of Plant Protection,Gansu Academy of Agricultural Sciences,Lanzhou 730070,China; 2.Animal Husbandry,Pasture and Green Agriculture Institute,Gansu Academy of Agricultural Sciences, Lanzhou 730070,China;3.College of Prataculture,Gansu Agricultural University,Lanzhou 730070,China; 4.Agricultural Research Institutions,Tibet Academy of Agricultural and Animal Husbandry Sciences,Lhasa,850032,China) |
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| Abstract: | Pathogen(strain YMZD-2),isolated from brown leaf spot of autumn sowing oat in Tibetan Shannan Region,was identificated based on Koch’s rule and morphology and and its Biological Characteristics was tested as well.The results showed that the pathogen(strain YMZD-2) belongs to Bipolaris sorokiniana.And mycelial growing temperature ranged from 5 ℃ to 35 ℃,(optimum 30 ℃).The highest condia yield was at 20 ℃.The morphology of conidia was variable with cultural temperatures,the biggest conidia was at 20 ℃,the most distoseptate numbers were at 15 ℃.Conidia germinated at 5~35 ℃,germination percentage higher than 90% at 15~35 ℃,and 95% at 20~30 ℃which were both under treatments in 5 hours in 5 hours in 10% oat leaf juice.The pathogen showed there were aggressive virulence to oat,corn,sorghum,hulless barley,wheat and pea under artificial inoculation condition. |
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| Keywords: | oat brown leaf spot Bipolaris sorokiniana biological characteristic host range |
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