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在盆栽条件下，强迫大豆孢囊线虫１号生理小种的群体在抗病品种上繁殖１０－１２代，用一套鉴定大豆孢囊线虫生理小种的鉴别品种，重新鉴定经抗病基因选择后的大豆孢囊线虫的生理小种类型，鉴定结果表明：原来为１号生理小种的线虫群体，经在抗病品种Ｐｅｋｉｎｇ和Ｆｒａｎｋｌｉｎ上连续选择１２代之后，变为４号小种；经在小粒黑豆上选择之后变为５号小种；经在铁丰１８上选择之后变为６号小种；经在Ｆａｙｅｔｅ和小粒黑上选择之后变为９号小种。
Under potted conditions, the population of Soybean Cyst Nematode No. 1 was rapped for 10-12 generations on resistant varieties. A set of identification varieties for identification of Soybean cyst nematode physiological races were re-identified for selection by disease resistance genes The results showed that the nematode population which was originally Physiological Race 1 was changed into the fourth race after 12 successive generations of resistant varieties Peking and Franklin. Became raiser 5 after selection on the small black beans; races no 6 after selection on the iron abundance 18; raccoon 9 after selection on Fayete and granule black.