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玉米矮化叶病(MDM)的发生流行与品种的抗病性有密切关系,生产上大而积种植不抗病或抗性差的品种是导致MDM流行的重要诱因,自交系比杂交种更易感病是制种田病重的原因所在。玉米不同自交系及其杂交种对MDM的抗性有显著差异,利用抗病品种是防治该病最经济有效的措施。
The prevalence of maize dwarf leaf disease (MDM) is closely related to the disease resistance of cultivars, and the production of large and plotted cultivars with no disease resistance or poor resistance is an important inducement for the prevalence of MDM. Inbred lines are more easily than hybrids Sickness is the cause of sick farming. The resistance of maize inbred lines and their hybrids to MDM is significantly different. It is the most economical and effective measure to control the disease by using resistant varieties.