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玉米茎腐病是一种发生普遍的世界性病害。近年来已成为我国玉米产区的主要病害之一,尤其是杂交玉米更为感病。据统计山东省每年发病面积约500万亩,春玉米病株率为10～20%,严重时可达50%以上;夏玉米病株率一般为20—30%,严重时可达60%以上。此病是由几种真菌和细菌复合侵染引起的,其病原菌国內外相继报道有十几种。防治此病是目前玉米病害中一件棘手的事情。尽管如此,利用玉米品种的抗病性是行之有效的途径。玉米品种对茎腐病是由多基因控制的,
Corn stalk rot is a common worldwide disease. In recent years, it has become one of the main diseases of maize producing areas in our country, especially the hybrid maize is more susceptible. According to statistics, the annual incidence of disease in Shandong Province is about 5 million mu. The rate of diseased corn is 10-20% in severe cases and more than 50% in severe cases. The rate of diseased plants in summer maize is generally 20-30% and severe in up to 60% . The disease is caused by several fungal and bacterial infections, the pathogens have been reported at home and abroad a dozen. Prevention and treatment of the disease is a thorny matter in corn diseases. Nevertheless, the use of maize varieties of disease resistance is an effective way. Maize variety stalk rot is controlled by multiple genes,