Gansu Nematode Trophic Group Structure in the Rhizosphere of Flowers

ACTA HORTICULTURAE SINICA ›› 2008, Vol. 35 ›› Issue (10): 1521-1526.

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Gansu Nematode Trophic Group Structure in the Rhizosphere of Flowers

LIU Qi-zhi^1*;WANG Jian-kui¹;WEN Chao-Hui²;BIAN Yong¹;and YUN Hui-Ling³

(¹ Insect and Nematology Laboratory, College of Agriculture and Biotechnology, China Agricultural University, Beijing 100193, China; ² Gansu Entry-exit Inspection and Quarntine Bureau, Lanzhou 730020, China; ³ Horticulture Station of Qingshui County, Tianshui, Gansu 741400, China)

Received:2008-05-19 Revised:2008-08-25 Online:2008-10-25 Published:2008-10-25
Contact: LIU Qi-zhi

Abstract

Abstract: During 2006-2007, nematode surveys from the regions of Jiuquan, Dingxi to Tianshui of Gansu province in the rhizosphere of 56 species of flowers, such as tropaeolum, gladiolus, maidenhair, marigold, calliopsis, dahlia, were carried out in 9 flower bases of seed propagation, demonstration and production. The 111076 nematode individuls were classified into 43 genera and 4 trophic groups. Among them, 32 genera of nematodes belong to beneficial un-plant parasitic (bacterivorous, fungivorous, omnivorous/predatory) nematodes and 11 genera of nematodes belong to baneful phytophagous nematodes which accounted for 1/4 of nematode collectivity, especially the nematodes in the genus of Tylenchus and Filenchus, involved 51 (91%) and 42 (75%) species of flowers, repectively. The data provided in this study was expected to help nematode potential risk analysis and to help trade negotiation and determination if there are some dissension caused by nematodes.

Key words: flower, nematode, trophic groups, risk analysis, import and export trade

CLC Number:

S 68
S 432

LIU Qi-zhi;WANG Jian-kui;WEN Chao-Hui;BIAN Yong;and YUN Hui-Ling. Gansu Nematode Trophic Group Structure in the Rhizosphere of Flowers [J]. ACTA HORTICULTURAE SINICA, 2008, 35(10): 1521-1526.

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Gansu Nematode Trophic Group Structure in the Rhizosphere of Flowers

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