DU Hui,CHEN Ming,LV He-ping,et al.Species Identification of Root-knot Nematode on Vegetables and Its Distribution in Gansu Province[J].Northern Horticulture,2012,36(20):127-130.
甘肃省蔬菜根结线虫发生种类与分布
- Title:
- Species Identification of Root-knot Nematode on Vegetables and Its Distribution in Gansu Province
- 文章编号:
- 1001-0009(2012)20-0127-04
- Keywords:
- root-knot nematode; species; distribution; vegetables; Gansu province
- 分类号:
- S 436.3
- 文献标志码:
- A
- 摘要:
- 2008～2011年对甘肃省蔬菜根结线虫的发生种类和分布及种群密度进行了调查。结果表明：依据根结线虫2龄幼虫、雌虫、雄虫及卵的形态学特征，明确了甘肃省蔬菜根结线虫种类为南方根结线虫（M.incognita）；根结线虫在甘肃省的保护地蔬菜上普遍发生，几乎遍及全省的各个地区，发生严重，受害的蔬菜种类达20多种，其中番茄、黄瓜及苦瓜受害严重，土壤中的线虫群体密度最高达到1 196条/100g。此外，调查还发现，保护地内的一些杂草，如藜、马齿苋、田旋花和龙葵等上也有根结线虫发生。
- Abstract:
- The species and distribution as well as population densities of root-knot nematodes(Meloidogyne spp.) were investigated in Gansu province from 2008 to 2011.The results showed that the species occurred on protected-field vegetables was Meloidogyne incognita basing on the morphological characters of males，females，the second-stage juveniles and eggs in Gansu province.This nematode was widely spread in Gansu and caused a serious damage to more than 20 kinds of vegetables，it mainly caused damage to tomato，cucumber and bitter melon.The highest density of the nematode in soil reached to 1 196 second stage juveniles per 100 gram soil.Meanwhile，this nematode was also found on weeds in the protected fields，such as Chenopodium lbum，Portulaca oleracea L.，Convolvulus arvensis L.and Solanum nigrum L.
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备注/Memo
第一作者简介：杜蕙（1970-），女，甘肃临洮人，硕士，副研究员，现主要从事农作物病害及其防治技术研究工作。E-mail:dh0928@163.com.