首页 | 本学科首页   官方微博 | 高级检索  
   检索      

氮素增加条件下丛枝菌根真菌对陆稻和无芒稗相互作用的调节
引用本文:朱圣潮,张珊珊,唐建军,蒋琦清,陈欣.氮素增加条件下丛枝菌根真菌对陆稻和无芒稗相互作用的调节[J].应用生态学报,2007,18(10):2337-2342.
作者姓名:朱圣潮  张珊珊  唐建军  蒋琦清  陈欣
作者单位:1. 丽水学院生物系,浙江丽水,323000;浙江大学生命科学学院,杭州310058
2. 浙江大学生命科学学院,杭州,310058
基金项目:国家自然科学基金;浙江省自然科学基金人才资助项目
摘    要:采用盆栽方法研究了增氮条件下丛枝菌根真菌(AMF)对无芒稗(Echinochloa crusgallivar.mitis L.)和陆稻(Oryza sativa L.)相互作用的调节.结果表明:在单种条件下,无芒稗的菌根侵染率增加,陆稻的菌根侵染率降低;无AMF和接种AMF处理陆稻的生物量分别提高13.48%和42.35%,总磷吸收分别提高2.55%和4.07%,总氮吸收分别提高62.09%和30.35%;无芒稗的生物量分别提高15.65%和20.24%,总磷吸收分别提高4.06%和3.88%,总氮吸收分别提高30.35%和15.10%.在混种条件下,无芒稗的菌根侵染率增加,而陆稻无显著变化;无AMF和接种AMF的无芒稗与陆稻的生物量比值降低,总氮吸收比值无显著变化,无AMF处理的总磷吸收比值增加,而接种AMF处理降低.表明增氮条件下AMF提高了无芒稗对陆稻的竞争.

关 键 词:氮素增加  陆稻  稗草  菌根真菌
文章编号:1001-9332(2007)10-2337-06
修稿时间:2007-02-02

Regulation effects of arbuscular mycorrhizal fungi on the interactions between barnyard grass and upland rice under enhanced nitrogen supply
ZHU Sheng-chao,ZHANG Shan-shan,TANG Jian-jun,JIANG Qi-qing,CHEN Xin.Regulation effects of arbuscular mycorrhizal fungi on the interactions between barnyard grass and upland rice under enhanced nitrogen supply[J].Chinese Journal of Applied Ecology,2007,18(10):2337-2342.
Authors:ZHU Sheng-chao  ZHANG Shan-shan  TANG Jian-jun  JIANG Qi-qing  CHEN Xin
Institution:1Department of Biology, Lishui College, Lishui 323000, Zhejiang, China; 2College of Life Sciences, Zhejiang University, Hangzhou 310058, China
Abstract:A pot experiment was conducted to study the regulation effects of arbuscular mycorrhizal fungi (AMF) on the interactions between Echinochloa crus-galli var. mitis L. and Oryza sativa L. under enhanced N supply (4.0 g N x m(-2) x a(-1)). The results showed that under monoculture condition, the AMF colonization on E. crus-galli increased but that on O. sativa decreased. In the treatments with and without AMF inoculation, upland rice biomass and its P and N uptake increased by 42.35% and 13.48%, 4.07% and 2.55%, and 30.35% and 62.09%, respectively, and barnyard grass biomass and its P and N uptake increased by 20.24% and 15.65%, 3.88% and 4.06%, and 15.10% and 30.35%, respectively. Under mixed cropping, the AMF colonization on E. crus-galli increased but that on O. sativa had little change. In the treatments with and without AMF inoculation, the biomass ratio of O. sativa to E. crus-galli decreased, but N uptake ratio changed a little. The P uptake ratio of O. sativa to E. crus-galli increased in treatment without AMF inoculation but decreased in treatment with AMF inoculation. It was suggested that AMF tended to enhance the competition of E. crus-galli to O. sativa under enhanced N supply.
Keywords:enhanced nitrogen supply  Oryza sativa  Echinochloa crus-galli var  mitis  arbuscular mycorrhizal fungi
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《应用生态学报》浏览原始摘要信息
点击此处可从《应用生态学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号