Osman H A, Dickson D W, Smart G C
J Nematol. 1985 Jul;17(3):279-85.
Morphometric comparisons of two populations each of Races 1 and 2 of Meloidogyne arenaria from tobacco, peanut, and soybean in different localities in Florida showed no significant differences in any characters measured by light microscopy. Thirteen morphometric characters of females, 22 of males, and 21 of infective second-stage juveniles were measured for each population. The stylet length in each population and in each life stage was the least variable character. Proposed character additions to supplement the description of M. arenaria and more precisely define the species include the following: female - metacorpus length and width, metacorpus valve length and width, vulva-anus distance; male - length of stylet shaft and knobs, stylet base to head end; infective juvenile - length of stylet shaft and knobs, head end to metacorpus valve, excretory pore to head end, metacorpus valve length and width, and d-ratio.
对采自佛罗里达州不同地点烟草、花生和大豆上的南方根结线虫1号小种和2号小种的两个群体进行形态测量比较，结果表明，通过光学显微镜测量的任何性状均无显著差异。对每个群体的雌虫13个形态测量性状、雄虫22个形态测量性状以及侵染性二龄幼虫21个形态测量性状进行了测量。每个群体以及每个生活阶段的口针长度是变异最小的性状。提议增加一些性状以补充南方根结线虫的描述并更精确地定义该物种，这些性状包括：雌虫——中食道球长度和宽度、中食道球阀长度和宽度、阴门到肛门的距离；雄虫——口针杆和基部球的长度、口针基部到头部末端的距离；侵染性幼虫——口针杆和基部球的长度、头部末端到中食道球阀的距离、排泄孔到头部末端的距离、中食道球阀长度和宽度以及d值比。
