【摘要】 通过调查、介体接种传毒试验和电镜观察，明确陕西省目前玉米病毒病主要种类有玉米粗缩病（ＭＲＤＶ） 、玉米矮花叶病（ＭＤＭＶ） 和玉米红叶病（ＭＲＬＶ）３ 种。其中以玉米矮花叶病分布最广，几乎遍布全省所有玉米产区，玉米粗缩病次之，主要发生在渭南、西安、咸阳等关中东部灌区，玉米红叶病则仅在渭北及关中小麦黄矮病重发区常见更多还原

【Abstract】 Throught field investigation, vector inoculation and electron microscope observation in Shaanxi province, authors sured that the major viruses in maize were maize rough dwarf virus (MRDV),maize dwarf mosaic virus (MDMV) and maize red leaf virus (MRLV). Further studies indicates that MDMV is distributed in the all maize growing area, MRDV in irrigated Weinan,Xi′an and Xianyang et al. MRLV is distributed in the area of Weibei and Guanzhong where theBYDV was always occurred severely.更多还原