玉米矮花叶病,是我省当前玉米生产上常年流行为害的病毒病。据有关研究资料阐明,防治此病的根本途径,在于选育和推广抗病品种,而且不同玉米品系的抗性有明显的差异,亲本的抗病性又对杂交种后代影响很大。据此,为给抗病育种工作提供依据和筛选出抗病品种直接利用于生产,从1978年开始,并着重于1980和1981年进行了玉米品种资源的抗病性鉴定。 Corn dwarf mosaic disease is the current perennial epidemic of maize epidemic virus disease in our province. According to the relevant research data, the fundamental way to prevent and treat this disease lies in breeding and popularizing disease-resistant varieties, and there are obvious differences in the resistance of different maize lines. The disease resistance of the parents has a great influence on the offspring of hybrids. Accordingly, in order to provide the basis for the disease-resistant breeding work and to screen out the resistant varieties for direct utilization in the production, from 1978 onwards, the identification of disease resistance of maize varieties resources was emphasized in 1980 and 1981.