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本文报道了大豆花叶病毒株系鉴定和划分的方法以及东北3省各株系的分布比例,为大豆抗花叶病毒育种工作提供了基础。采用当前生产上有相当面积的栽培品种作为株系鉴别品种,将毒株分为3个株系群。1号株系群能使感病品种合丰23、九农9和吉林18发病产生系统症状;2号株系群除对上述品种外,还能使中抗品种齐黄1号和铁丰18也发病;3号株系群则对7个鉴别品种包括高抗品种诱变30及科系8号均能发病。自1982～84年3年共鉴定了采自东北3省29个市县的毒株391个,3个株系都占有相当的比例,其中吉林省3号株系偏少。
This paper reports the method of identifying and dividing soybean mosaic virus strains and the distribution ratio of each strain in the three northeastern provinces, and provides the basis for the breeding of soybean anti-mosaic virus. The current production of a considerable area of cultivars as strains identification varieties, the strains are divided into three strains. No. 1 strain could induce systemic symptoms of susceptible cultivars Hefeng 23, Jiu Nong 9 and Jilin 18. In addition to the above varieties, strain 2 could also make mid-resistant varieties Qihuang 1 and Tiefeng 18 Also the incidence of disease; 3 strains of the group of seven identification varieties, including high resistance varieties mutagenesis 30 and Department of the Department of 8 can attack. A total of 391 strains were collected from 29 cities and counties in three provinces of Northeast China from 1982 to 1984, and all three strains accounted for a considerable proportion, of which, No. 3 strain in Jilin Province was less than normal.