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玉米在生长过程中易受到多种病虫为害,其中玉米丝黑穗病直接为害产量器官,是玉米生产中的重要病害和主要防治对象。玉米丝黑穗病俗称乌米,是一种重要的土传和种传病害,主要发生在我国春玉米种植地区(冷凉地带),一般年份发病率在2%～8%。丝黑穗病基因属分子性状遗传,其优势性状在品种选育过程中很难与丝黑穗病基因分离,是目前通过育种方式较难解决的一个问题。近年来随着农业种植结构的调整,优质玉米品种的种植面积不断扩大,加之长期
Corn in the growth process susceptible to a variety of pests and diseases, including maize smut directly damage the production of organs, is an important disease in maize production and the main control object. Corn smut, commonly known as Wumei, is an important soil-borne and species-borne disease, which occurs mainly in the spring corn planting areas in our country (cold area), with the incidence of 2% -8% in general years. The head smut gene belongs to the molecular trait, and its dominant trait is hard to separate from the head smut gene during the process of breeding. It is a problem that is difficult to be solved by the current breeding method. In recent years, with the adjustment of agricultural planting structure, high-quality varieties of corn growing area, combined with long-term