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在玉米高产栽培中影响产量的重要因素是品种的根茎品质。而根茎品质中除了本身的形态特征外最重要的是对茎腐病的抗性。玉米茎腐病是一种致病菌种众多,土壤传染的病害。发病组织表现在茎秆,主要侵染途径则经由根部,故亦有通称为根茎腐病或茎基腐病。国内黄河流域玉米产区乳熟期发病时往往伴随整株突发性失水枯死症状,故又称为青枯病。世界玉米产区茎腐病均有发生,产量损失一般10％左右,最高可达30～50％。
An important factor influencing yield in high yielding cultivation of corn is the quality of the rhizome of the cultivar. In addition to the quality of the root of the morphological characteristics of the most important thing is the resistance to stalk rot. Corn stalk rot is a disease of many pathogenic bacteria, soil infection. Pathogenesis of the organization in the stalk, the main route of infection via the roots, it is also known as the root rot or stem rot. Domestic corn production in the Yellow River during milky mildew incidence is often accompanied by the sudden death of the whole plant symptoms of dehydration, it is also known as bacterial wilt. Corn stalks in the world corn production have occurred, the yield loss is generally about 10%, up to 30 to 50%.