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(一) 80年代,农业部科技司设立柑桔黄龙病防治研究协作项目,由中国农业科学院柑桔研究所和华南农业大学牵头组织柑桔黄龙病与其他病毒类病害防治研究协作组。协作组先后于1984、1986、1988年召开3次会议交流情况和经验。虽然该协作项目业已
(I) In the 1980s, the Department of Science and Technology of the Ministry of Agriculture set up a collaborative research project on the prevention and control of citrus Huanglongbing disease. The Citrus Institute of Chinese Academy of Agricultural Sciences and the South China Agricultural University led the collaborative research group on the prevention and treatment of citrus Huanglongbing and other virus diseases. The cooperation group held three meetings in 1984, 1986 and 1988 to exchange information and experiences. Although the collaboration project has been