水源11小麦自六十年代初引入我省,近20年对条锈病菌已知小种均表现免疫。因此不少单位都把水源11当作抗源,杂交育种,其前途如何是育种者极为关注的问题之一。作者在进行水源11抗锈遗传研究中,1982年秋在青海农科院试验地发现有染锈现象,反应型4级、严重度5-25-40、普遍率高达30％。为了查明水源11是否真正丧失抗锈性,对致病菌种进行了鉴定。结果简报如下: Water source 11 wheat was introduced into our province since the early 1960s, nearly 20 years of the known races of stripe rust germplasm are immune. Therefore, many units regard water source 11 as a source of resistance and crossbred breeding. Its future is one of the issues that breeders are extremely concerned about. In the study of rust resistance of water source 11, the authors found that there was a rust phenomenon in the trial of Qinghai Academy of Agricultural Sciences in the autumn of 1982. The reaction type was grade 4, the severity was 5-25-40, and the universality rate was as high as 30%. In order to find out whether water source 11 really lost its rust resistance, the pathogen was identified. The briefing results are as follows: