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一、马铃薯病毒病研究工作(一)抗性材料筛选技术筛选抗卷叶病的方法是先在温室内一边种感病材料,繁殖大量带毒蚜虫,一边种植要测定的资源或杂交实生苗,籍蚜虫扩散,自然接种传毒,或取带蚜叶片直接放在每个实生苗顶端,经两星期后,用药剂灭蚜而后移栽大田,调查各组合发病百分率,采用块茎筛选时则先使块茎发芽(2毫米)暴露于蚜虫为害下。目前使用的常规筛选方法不再移栽大
First, the potato virus disease research (A) of resistant material screening technology Screening of anti-curl disease is the first in the greenhouse side of the susceptible materials, breeding a large number of poisonous aphids, while planting resources to be measured or hybrid seedlings, Aphids spread natural vaccination or take aphid leaves directly on the top of each seedling, after two weeks, with aphids off the drug and then transplanting the field to investigate the percentage of incidence of each combination, the use of tuber screening first make Tuber germination (2 mm) exposed to aphids. The conventional screening methods currently used are no longer transplanted large