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玉米丝黑穗病是春玉米地区的重要病害。1976—1978年,我们进行了综合防治试验示范工作,取得一定结果。综合防治的内容可概括为种、药、拔、管四个字。一、种选用抗病自交系,种植抗病杂交种。一般双亲抗病,杂种一代也抗病,双亲感病,杂种一代也感病。多数材料杂种一代抗病性介于双亲之间,抗病性遗传表现为不完全显性,但也有表现完全显性或超亲遗传的现象。所以在抗病育种工作中,应选择优良抗病自交系作亲本,以获得抗病的后代。据鉴定,抗病的自交系有Mo17、7091、单624等,抗病的杂交种有
Corn smut is an important disease in spring corn. From 1976 to 1978, we conducted a comprehensive experiment in prevention and control and achieved some results. The content of comprehensive prevention and treatment can be summarized as species, medicine, pull, tube four words. First, the selection of disease-resistant inbred lines, planting disease-resistant hybrids. Generally parents fight disease, hybrid generation disease resistance, parents susceptible, hybrid generation also susceptible. Most of the material hybrid generation disease resistance between parents, the disease-resistant genetic performance is not completely dominant, but also showed complete dominant or super-progeny phenomenon. Therefore, in breeding disease-resistant work, we should choose good disease-resistant inbred lines as parents to get disease-resistant offspring. It has been identified, resistant inbred lines have Mo17,7091, a single 624, etc., disease-resistant hybrids are