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全国植保总站与中国农科院果树研究所共同主持的苹果苗木去病毒、快速繁殖技术研究及无病毒栽培示范协作组第三次会议,于1989年3月26～27日在辽宁兴城召开。参加会议的有辽宁、山东、陕西、河北、山西、江苏、甘肃、青海等省的植保站、有关地县的植保站和科研单位的代表共28人。与会代表总结交流了1986～1988年以来的工作经验,并进行了充分讨论。一致认为三年来,苹果病毒研究和无病毒栽培示范已取得可喜进展,起步较早的省份已基本建成有10多个品种的苹果无病毒母本园,生产无病毒苗木近50万株,示范面积达3000
National Plant Protection Headquarters and the Chinese Academy of Agricultural Sciences Institute of fruit trees co-chaired apple seedlings to virus, rapid propagation technology research and demonstration of non-virus cultivation collaboration group third meeting, March 26, 1989 held in Xingcheng, Liaoning Province. A total of 28 representatives from plant protection stations in Liaoning, Shandong, Shaanxi, Hebei, Shanxi, Jiangsu, Gansu, Qinghai and other provinces and plant protection stations and scientific research units in related counties attended the conference. The participants summed up the exchange of work experience from 1986 to 1988, and conducted a full discussion. They all agreed that the research on apple virus and the demonstration of virus-free cultivation have made gratifying progress in the past three years. The provinces that started earlier have basically completed the construction of more than 10 varieties of apple-virus-free mother garden and produced nearly 500,000 virus-free seedlings. The demonstration area Up to 3000