Windham G L, Pederson G A
J Nematol. 1992 Jun;24(2):257-61.
The reproductive potential of Meloidogyne graminicola was compared with that of M. incognita on Trifolium species in greenhouse studies. Twenty-five Trifolium plant introductions, cultivars, or populations representing 23 species were evaluated for nematode reproduction and root galling 45 days after inoculation with 3,000 eggs of M. graminicola or M. incognita. Root galling and egg production by the two root-knot nematode species was similar on most of the Trifolium species. In a separate study, the effect of initial population densities (Pi) of M. graminicola and M. incognita on the growth of white clover (T. repens) was determined. Reproductive and pathogenic capabilities of M. graminicola and M. incognita on Trifolium spp. were similar. Pi levels of both root-knot nematode species as low as 125 eggs per 10-cm-d pots severely galled white clover plants after 90 days. Meloidogyne graminicola has the potential to be a major pest of Trifolium species in the southeastern United States.
在温室研究中，比较了禾本科根结线虫（Meloidogyne graminicola）和南方根结线虫（M. incognita）在三叶草属植物上的繁殖潜力。用3000粒禾本科根结线虫或南方根结线虫的卵接种后45天，对代表23个物种的25份三叶草植物引种材料、品种或群体进行了线虫繁殖和根瘤形成情况的评估。在大多数三叶草物种上，这两种根结线虫的根瘤形成和产卵情况相似。在另一项研究中，测定了禾本科根结线虫和南方根结线虫的初始种群密度（Pi）对白三叶（T. repens）生长的影响。禾本科根结线虫和南方根结线虫在三叶草属植物上的繁殖和致病能力相似。90天后，每10厘米直径花盆中低至125粒卵的两种根结线虫的Pi水平都会严重损害白三叶草植株。禾本科根结线虫有可能成为美国东南部三叶草属植物的主要害虫。
