| 云南稻瘟菌致病能力分析 |
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| 引用本文： | 陈于敏,何月秋. 云南稻瘟菌致病能力分析[J]. 云南农业大学学报(自然科学版), 2007, 22(1): 41-44 |
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| 作者姓名： | 陈于敏 何月秋 |
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| 作者单位： | [1]云南农业大学教育部生物多样性与病虫害控制重点实验室,云南昆明650201 [2]云南省农业科学院质量标准与测试技术研究所,云南昆明650223 |
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| 基金项目： | 国家“863”项目（2002AA245041）;云南省科技厅配套项目（2003GP06）;云南农科院植物新品种保护与测试项目. |
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| 摘 要： | 33个主要来自云南的稻瘟菌株接种于43个品种上接种的结果表明,它们的致病频率在20.59%~83.72%之间,菌株的致病能力与生境来源存在一定关系,宜良菌株致病力最强, 致病频率达81.40%,澄江、巍山的菌株次之,致病频率分别为64.29%, 62.79%,其它来源的菌株致病频率较低。总体来看,滇东南菌株致病力强且致病类型多,滇中西部菌株致病力弱。
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| 关 键 词： | 稻瘟病 菌株 致病能力 |
| 文章编号： | 1004-390X（2007）01-0041-04 |
| 收稿时间： | 2006-05-31 |
| 修稿时间： | 2006-05-31 |
Pathogenicity Analysis of Magnaporthe grisea Isolates from Yunnan |
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| CHEN Yu-min,HE Yue-qiu. Pathogenicity Analysis of Magnaporthe grisea Isolates from Yunnan[J]. Journal of Yunnan Agricultural University, 2007, 22(1): 41-44 |
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| Authors: | CHEN Yu-min HE Yue-qiu |
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| Affiliation: | 1. Key Laboratory for Agricultural Biodiversity for Pest Management of China Education Ministry, Y A U, Kunming 650201, China; 2. Quality Standard and Testing Technology Institute, Yunnan Academy of Agricultural Sciences, Kunming 650223, China |
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| Abstract: | The pathogenicity of 33 isolates ofMagnaporthe griseamainly from Yunnan Province was an-alyzed by inoculation onto 43 rice varieties.Their pathogenic frequencies(PF) varied greatly,from 20.59% to 83.72%.Their pathogenicity is related to the origins at some extent.V irulence of the iso-lates from Y iliang County was the strongestwith 81.40% PF,the m iddle from Chengjiang andW eishan Counties,with 64.29% and 62.79% PF,respectively,and weaker from other counties.The isolates from Southeastern Yunnan d iversified in pathogenicity with strong virulence.The isolates,however,from the m iddle and western Yunnan have relatively weaker virulence. |
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| Keywords: | Magnaporthe grisea(Hebert)Barr. isolates pathogenicity |
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