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从田间采集的标样中,首次分离到对具抗病基因(Yr3b、4b)的小麦品种Hybrid4b有稳定毒力的条锈菌菌系。该菌系毒性基因谱宽于条中29号,其致病范围比当前流行小种更广泛,对我国的重要生产品种和主要抗源有较强的苗期和成株期致病性。建议加强对毒性新菌系流行预测研究。
From the field samples collected for the first time isolated against the disease-resistant genes (Yr3b, 4b) wheat hybrid4b strains have stable virulence strains of rust. The strains of virulence gene spectrum broader than Article 29, its pathogenic range than the current epidemic races more extensively, the important production varieties and the main source of resistance in our country have strong seedling and adult pathogenicity. Proposed to strengthen the epidemic of new strains of virulence prediction study.