Species Identification of Root-knot Nematode on Vegetables and Its Distribution in Gansu Province(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:

2012年20期

Page:

127-130

Research Field:

Publishing date:

Info

Title:

Species Identification of Root-knot Nematode on Vegetables and Its Distribution in Gansu Province

Author(s):

DU Hui¹; CHEN Ming¹; LV He-ping¹; CAO Su-fang²; CHEN Shu-long³; QI Yong-hong¹

1.Institute of Plant Protection，Gansu Academy of Agricultural Sciences，Lanzhou，Gansu 730070；

2.Institute of Fruit Tree and Flower，Gansu Academy of Agricultural Sciences，Lanzhou，Gansu 730070;

3.Institute of Plant Protection，Hebei Academy of Agricultural and Forestry Sciences，Baoding，Hebei 071000

Keywords:

root-knot nematode; species; distribution; vegetables; Gansu province

PACS:

S 436.3

DOI:

-

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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