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1993年我国小麦秆锈病发生较轻,从8个省18个区县中的47个品种上采集到的95个标样中分离到菌株336个,鉴定出21C3CKR、21C3CKH、21C3CTR、21C3CTH、21C3CFR、21C3CFH、34C1MKR、34C1MKH和34C2MKR等9个致病类型;21C3CKR的出现频率为65.2％,居于首位,21C3CKH为14.5％,21C3CTR为10.7％,21C3CFR为4.2％,21C3CTH为1.2％,其余各致病类型均在0.9％以下。首次发现对Sr11有毒力的菌株,利用336个菌株对41个Sr单抗基因的毒力频率测定中,毒力频率在19.8％以下的有Sr5、10、11、15、26、31、33、35、37和38,其中对Sr11的毒力频率为14.6％;毒力频率在40％—58.2％之间的Sr单基因系是Sr24、32、GT和SrWld-1;全部菌株对Sr9e、21和30没有毒力,其余Sr单基因系的毒力频率均在67％以上。
In 1993, wheat stem rust occurred less in our country. A total of 336 strains were isolated from 95 samples collected from 47 cultivars in 18 districts of 8 provinces. 21C3CKR, 21C3CKH, 21C3CTR, 21C3CTH, 21C3CFR, 21C3CFH, 34C1MKR, 34C1MKH and 34C2MKR. The frequency of occurrence of 21C3CKR was 65.2%, which was highest in 21C3CKH, 14.5% in 21C3CKH, 10.7% in 21C3CTR, 4.2% in 21C3CFR and 1.2% in 21C3CTH. All below 0.9%. For the first time, it was found that virulence strains of Sr11 were detected in virulence frequencies of 41 Sr monoclonal antibodies using 336 strains. The frequency of virulence in Sr5, Src, 35, 37 and 38, among which the virulence frequency to Sr11 was 14.6%; the Sr single gene lines with virulence frequency between 40% -58.2% were Sr24,32, GT and SrWld-1; And 30 were not virulent, the virulence frequencies of other Sr single gene lines were above 67%.