| 我国小麦秆锈菌种群动态分析 |
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| 引用本文： | 姚平,曹远银,张书绅,杨英慧,王奎荣. 我国小麦秆锈菌种群动态分析[J]. 植物保护, 1998, 24(1): 3-6 |
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| 作者姓名： | 姚平 曹远银 张书绅 杨英慧 王奎荣 |
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| 作者单位： | 沈阳农业大学植物免疫室，辽宁新城子财落农业技术推广站，江苏省徐州地区农科所 |
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| 摘 要： | １９９５～１９９６年间，在我国７省区６２个县点共收集标样２８３份，涉及品种１１７个，分离到菌株４５５份，鉴定出１５个致病类型，其出现类型的发生频率分别是２１Ｃ３ＣＫＲ为１７．５％，２１Ｃ３ＣＦＨ９．６％，２１Ｃ３ＣＫＨ８．８％，２１Ｃ３ＣＦＲ６．０％，２１Ｃ３ＣＴＲ２２．０％，２１Ｃ３ＣＰＲ９．４％，２１Ｃ３ＣＴＨ８．８％，２１Ｃ３ＣＰＨ１１．９％，３４ＭＫＧ１．３％，３４Ｃ２ＭＫＨ０．２％，３４Ｃ２ＭＫＫ０．１％，３４Ｃ２ＭＦＨ３．６％，３４Ｃ２ＭＦＫ０．４％，３４Ｃ１ＭＫＲ和３４Ｃ１ＭＦＲ为０．２％。１９９６年２１Ｃ３ＣＫＲ的出现频率上升为第１位，对Ｓｒ１１有毒力的致病类型出现频率有所下降。
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| 关 键 词： | 小麦秆锈病 致病类型 抗性基因 毒力频率 |
Race dynamics analysis of Puccinia graminis f.sp. tritici in China. |
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| Affiliation: | Plant Immunological Laboratory of Shenyang Agricultural University 110161;Cailuo Station of Agricultural Technology and Extension in Xinchengzi;Liaoning;Xuzhou Institute of Agricultural Sicences,Jiangsu |
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| Abstract: | 455 isolates were isolated from 283 crude samples collected from 117 wheat cultivars in 62 counties of 7 Provinces in 1995-1996. Fifteen pathotypes were identified in the isolates and their frequency were 21C3CKR (17.5%), 21C3CFH (9.6%), 21C3CKH (8.8%), 21C3CFR (6.0%), 21C3CTR (22.0%), 21C3CPR (9.4%), 21C3CTH (8.8%), 21C3CPH (11.9%),34MKG (1.3%), 34C1MKR (0.2%), 34C2MFH (3.6%), 34C2MFK (0.4%), 34C2MKH (0.2%) and 34C2MKK (0.1%), respectively. In 1996, the virulent frequency of Sr11, incuding 21C3CTR and 21C3CTH was dcreased compared with 1995. The virulenct frequency of 43 single Sr gene lines was also tested. |
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| Keywords: | wheat stem rust pathotype resistant gene virulenct frequency |
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