甘肃花卉根际线虫的营养类群结构  

Gansu Nematode Trophic Group Structure in the Rhizosphere of Flowers

作　　者：刘奇志[1] 王建魁[1] 文朝慧 边勇[1] 贠惠玲 

机构地区：[1]中国农业大学农学与生物技术学院,昆虫与线虫学实验室 [2]甘肃出入境检验检疫局,兰州730020 [3]清水县园艺站,甘肃天水741400

出　　处：《园艺学报》2008年第10期1521-1526,共6页Acta Horticulturae Sinica

基　　金：国家‘863’计划项目(2006AA06Z354)

摘　　要：2006—2007年,对甘肃省酒泉、定西、天水等9个花卉制种和生产基地种植的旱金莲、唐菖蒲、孔雀草、万寿菊、波斯菊、大丽花等56种花卉根际线虫类群进行了研究。经鉴定111076条线虫分属43个属,4个营养类群(食细菌、食真菌、杂食/捕食和植物寄生线虫),其中有益的非植物线虫属32个,有害的植物线虫属11个,占总调查属数量的1/4,相对比例较大,特别是垫刃属(Tylenchus)和丝尾垫刃属(Filenchus)的线虫出现的频率较高,分别涉及51种和42种花卉,占调查花卉总数的91%和75%。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 111 076 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.

关 键 词：花卉 线虫 营养类群 风险分析 进出口贸易 

分 类 号：S68[农业科学—观赏园艺] S432[农业科学—园艺学]