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对１９ 个烟草品种对南方根结线虫１ 号小种（Ｍｅｌｏｉｄｏｇｙｎｅ ｉｎｃｏｇｎｉｔａ ｒａｃｅ １）、花生根结线虫２ 号小种（ Ｍ． ａｒｅｎａｒｉａｒａｃｅ ２）和爪哇根结线虫（Ｍ． ｊａｖａｎｉｃａ） 的抗性进行了鉴定。通过聚类分析和方差分析，结果表明：ＮＣ９５、Ｋ３２６（Ｕ）、Ｇ２８、Ｖ２、３０２７、黔所２ 号、３１７、Ｋ３２６（Ｙ）、３０４０、４０７２ 对南方根结线虫１ 号小种抗病，中烟１４、温格尔、ＳＣ５８、红大、Ｃｏｋｅｒ４８、４０４８、３０７４、ＮＣ８２、８７１ 则感病；供试的１９ 个品种均对花生根结线虫２ 号小种、爪哇根结线虫感病，其中８７１对花生根结线虫２ 号小种、３１７ 对爪哇根结线虫具有一定的耐病性。在抗性鉴定的基础上提出了烟草品种抗根结线虫鉴定方法规范化的建议。
The resistance of 19 tobacco cultivars to Meloidogyne incognita race 1, M. arenariarace 2 and M. javanica was tested Identification. By cluster analysis and analysis of variance, the results showed that the resistance to root-knot nematode race 1 in NC95, K326 (U), G28, V2,3027, Guizhou No. 2, 317, K326 (Y) , Zhongyan 14, Wenger, SC58, Hongda, Coker48, 4048, 3074 and NC82, 871 were susceptible. All the 19 tested cultivars were susceptible to root-knot nematode race 2, Among them, 871 pairs of peanut root-knot nematode race 2, 317 pairs of root-knot nematodes have a certain degree of disease resistance. On the basis of resistance identification, the paper proposed the standardization suggestion of tobacco root-knot nematode identification method.