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1986～1990年采用田间自然发病和盆栽接种病土鉴定方法,对1991份大豆品种资源进行了抗大豆孢囊线虫3号小种鉴定,筛选出抗病品种48个,占参鉴品种的2.4%。承德地区的抗病品种较多。
From 1986 to 1990, the natural soybean germplasms in the field and potted inoculation method were used to identify 1991 soybean germplasm resources. The resistant varieties of soybean were identified as 48, accounting for 2.4% . Chengde area more resistant varieties.