小麦黄矮病是世界性病害,凡种植小麦、大麦和燕麦的国家与地区均受其害。自6O年代以分,我国已先后发生7次中度至中度以上大流行,严重影响小麦生产。本病病毒是由麦蚜以持久性方式传播,治蚜防病很难达到预期效果,因而筛选鉴定麦类种质资源,选育抗病品种是防治小麦黄矮病经济有效途径。据国外报导,大麦具抗性基因,而小麦没有。因此试图把大麦抗性基因转移到小麦上,但至今尚未成功。我们自1983年以来,用堆测法在田间筛选鉴定了15000多份麦类资 Wheat yellow dwarf is a worldwide disease that affects all countries and regions that grow wheat, barley and oats. Since the 1960s, China has successively occurred seven moderate to moderate severe pandemics, seriously affecting the wheat production. The virus is transmitted by the wheat aphid in a persistent manner, so it is hard to achieve the desired effect by controlling aphids. Therefore, the screening and identification of wheat germplasm resources and breeding of resistant varieties are effective and economical ways to prevent and cure wheat yellow dwarf disease. According to foreign reports, barley resistant genes, but wheat did not. So trying to transfer barley resistance genes to wheat, but so far has not been successful. We have identified more than 15,000 wheat resources in the field using the heap test since 1983