对采自黑龙江省25个市(县)的25份大豆胞囊线虫样品测定了胞囊密度,并在国际统一的鉴别寄主上进行了生理小种鉴定。结果表明:胞囊密度最高为40.7(孙吴县),胞囊密度最低为1.0(海伦,哈尔滨万宝镇),大多数地区胞囊密度介于20~30之间;3号生理小种仍为黑龙江省的优势生理小种,但在安达地区所采的土样中鉴定出4号和14号生理小种。 A total of 25 soybean cyst nematode samples collected from 25 cities (counties) in Heilongjiang Province were used to determine the density of the cytoplasm. Physiological identification was carried out on the internationally recognized host. The results showed that the highest density of cyst was 40.7 (Sunwu County), the lowest density of cyst was 1.0 (Helan, Harbin, Wanbao Town), and the majority of cyst densities were between 20 and 30. Physiological race 3 was still Heilongjiang Provincial races of Physiological Races, but Physiological Race 4 and 14 were identified in the soil samples collected in the Anda region.