运用形态学方法对采自江西省的74个根结线虫地理种群进行初步鉴定,结果表明:南方根结线虫有49个种群,花生根结线虫有12个种群,爪哇根结线虫有8个种群;并有5个为混合种群,其中3个为南方根结线虫和爪哇根结线虫的混合种群,2个为南方根结线虫和花生根结线虫的混合种群。调查表明,南方根结线虫在江西分布广泛,为优势种群。 Morphological methods were used to identify 74 root knot nematode populations from Jiangxi Province. The results showed that there were 49 populations of Meloidogyne incognita, 12 populations of Meloidogyne incognita, 8 populations of Meloidogyne javanica Five were mixed populations, of which three were mixed populations of Meloidogyne incognita and Meloidogyne javanica, and two were mixed populations of Meloidogyne incognita and Meloidogyne perenne. Survey shows that southern root-knot nematodes widely distributed in Jiangxi Province, as the dominant population.