小麦黄矮病是我国北方麦区小麦生产中的一个重要病害,近几年来,南方有的省也发生流行。这个病害是借麦蚜传播的病毒病,常伴随干旱的发生而流行。所以,在小麦黄矮病流行的年份和地区,除干旱带来的减产损失外,黄矮病也给小麦生产造成一定的损失。研究小麦黄矮病对小麦生长的影响,科学估计因病害引起小麦产量的损失,从而正确认识这一生物灾害,以加强防治措施。 Wheat yellow dwarf disease is an important disease in wheat production in northern China wheat area. In recent years, some southern provinces have also become epidemic. The disease is a viral disease transmitted by wheat aphids, often with the onset of drought. Therefore, in the years and areas where wheat yellow dwarf virus is endemic, in addition to the loss of yield caused by drought, yellow dwarf disease also caused some losses to the wheat production. To study the effect of wheat yellow dwarf on the growth of wheat, it is estimated that the loss of wheat yield due to the disease is scientifically estimated so as to correctly understand this biological disaster and to strengthen the prevention and control measures.