玉米矮花叶病及其防治

• 机 构: 甘肃省农科院植保所病毒组,
• 出 处: 甘肃农业科技
• 发表日期: 1980年03期
• 关键词: 玉米矮花叶病 条纹花叶病 高粱 枯心 传毒 玉米品种 潜育期 大斑病 约翰逊草 自交系

玉米矮花叶病又叫条纹花叶病,简称“花条病”,是我省各地近年来广为流行的一种严重病害。1977年在全省范围流行,据调查,张掖等地平均发病率50%左右;天水等地平均发病率40％以上。经测定病株减产为17—76％,平均30％左右。该病还侵染高粱、谷、糜等作物,其中以高粱受害最重,发病率可达30—50％,某些感病品种,因枯心缺苗可达20%以上。

Maize dwarf mosaic disease, also known as striped mosaic disease, referred to as “striped disease”, is widespread in recent years in our province a serious disease. In 1977 the epidemic in the province, according to the survey, Zhangye and other places the average incidence of about 50%; Tianshui and other places the average incidence of 40% or more. The measured strain output reduced to 17-76%, an average of about 30%. The disease also infects sorghum, rice, mili and other crops, of which sorghum most affected victims, the incidence of up to 30-50%, some susceptible varieties, due to lack of withered seedling up to 20%.