| 浙中沿海稻区稻瘟病菌生理小种的种群消长和分布研究 |
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| 引用本文： | 林凌伟,董国.浙中沿海稻区稻瘟病菌生理小种的种群消长和分布研究[J].江西植保,2000(4). |
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| 作者姓名： | 林凌伟 董国 |
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| 作者单位： | 浙江省临海市农科所!临海317000(林凌伟)，浙江省台州市农科所!临海317000(董国) |
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| 基金项目： | 浙江省台州市科委重点课题 !( 952 0 4 ) |
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| 摘 要： | 1996年至 1 998年 ,对分离来自浙中沿海台州各市县所获得的 1 76个单孢菌株 ,用全国统一鉴别品种共鉴定出 7群 2 2个稻瘟病生理小种。其中中 B和中 D群是台州稻区 2个主要的优势小种群 ,总的出现频率分别为 53.98%和 2 3.86% ,它们中的中 D1、中 B1 3、中 B1 5和中 B1这四个小种在我地分布范围广 ,出现频率分别高达 2 0 .4 5%、1 4 .2 0 %、1 4 .2 0 %和 1 0 .80 % ,且对多数栽种水稻致病 ,为优势小种
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| 关 键 词： | 水稻 稻瘟病 生理小种 |
STUDIES ON THE POPULATION FLUCTUATION AND THE DISTRIBUTION OF PHYSIOLOGICAL RACES OF RICE BLAST FUNGUS PYRICULARIA ORYZAE IN ZHEZHONG COASTAL AREAS |
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| Lin Lingwei,\ Dong Guokun.STUDIES ON THE POPULATION FLUCTUATION AND THE DISTRIBUTION OF PHYSIOLOGICAL RACES OF RICE BLAST FUNGUS PYRICULARIA ORYZAE IN ZHEZHONG COASTAL AREAS[J].Jiangxi Plant Protection,2000(4). |
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| Authors: | Lin Lingwei \ Dong Guokun |
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| Institution: | Lin Lingwei 1\ Dong Guokun 2 |
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| Abstract: | groups with 22 physiological races of rice blast fungus pyricularia oyzae were identified from 176 isolates obtained from farmer's field using Chinese differential varieties in rice croppings regions of Zhejiang Taizhou 1996-1998. Among them Zhong B group and Zhong D group were the dominant groups with the frequency of 53.98% and 23.86% in geneneral. and race ZD1(20.45%),ZB13(14.20%),ZB15(14.20%) and ZD1(10.80%) were the dominant races in Taizhou rice area. |
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| Keywords: | rice rice blast physiological rh |
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