小麦黄矮病是由大麦黄矮病毒 ( BYDV)引起的一种小麦病害 ,主要由蚜虫带毒传播 ,自 1 960年以来曾多次在甘肃省河西地区大发生 ,在甘肃省的河东地区、陕西省以及我国北方的大部分麦区都时有发生 ,给小麦生产造成了巨大损失。因此 ,我国有关部门及广大科研工作者对小麦抗黄矮病 Wheat yellow dwarf is a wheat disease caused by the barley yellow dwarf virus (BYDV), which is mainly transmitted by aphids. Since 1960, it has occurred many times in the Hexi area of ​​Gansu Province. In the eastern part of Gansu Province, Most of the wheat areas in Shaanxi Province and northern China have occurred from time to time, causing huge losses to wheat production. Therefore, the relevant departments of our country and the majority of scientific workers against wheat yellow dwarf disease