Acta Agrestia Sinica

›› 2006, Vol. 14 ›› Issue (2): 152-155.DOI: 10.11733/j.issn.1007-0435.2006.02.012

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Effect of Acidic Soil on Arbuscular Mycorrhizal Symbiosis of Anthoxanthum Odoratum L.

WU En1, XIN Guo-rong2, SUGAWARA Kazuo3, YUN Jin-feng 1   

  1. 1. College of Ecology and Environmental Science, Inner Mongolia Agriculture University, Huhhot, Inner Mongolia Autonomous Region 010018, China;
    2. College of Life Science, Sun Yatsen University, Guangzhou, Guangdong Province 510275, China;
    3. Graduate School of Agricultural Science, Tohoku University, Sendai 981-0914 Japan
  • Received:2005-03-10 Revised:2006-04-20 Online:2006-05-15 Published:2006-05-15

酸性土壤对黄花茅菌根共生性的影响

乌恩1, 辛国荣2, 菅原和夫3, 云锦凤1   

  1. 1. 内蒙古农业大学生态环境学院, 中国, 呼和浩特, 010018;
    2. 中山大学生命科学学院, 中国, 广州, 510275;
    3. 东北大学大学院农学研究科, 日本, 仙台, 981-0914
  • 作者简介:乌恩(1961- ),男,蒙古族,内蒙古人,农学博士,副教授,主要从事草地菌根、草地生态和牧草营养学研究,E-mail:wuen2004@163.com

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Abstract: An investigation was conducted on the arbuscular mycorrhizal symbiosis of the invading weed plant Anthoxanthum Odoratum L.in the acidic cultivated pasture,as well as on the effect of soil pH to the arbuscular mycorrhizal colonization of A.odoratum.It was found that the occurrence frequency of A.odoratum in the acid penetrated pasture was much higher than the growth of seeded herbages. Mycorrhizal colonization of A.odoratum significantly correlated with the coverage,but not affected by the soil pH.It was the arbuscular mycorrhizal symbiosis of A.odoratum,which the seeded herbages lacked,that ensured the invading weed to develop and overgrow in the severely acidic soil of the cultivated pasture.

Key words: Acidic soil, Anthoxanthum Odoratum L., Arbuscular mycorrhiza, Symbiosis

摘要： 研究酸化放牧人工草地主要入侵杂草黄花茅(Anthoxanthum odoratum L.)菌根共生性和土壤酸度对菌根侵染率的影响。结果表明:黄花茅在严重酸化草地的出现频率远高于播种牧草,其菌根侵染率与盖度呈显著正相关。酸性土壤对黄花茅的菌根形成没有显著影响,与播种牧草不同的菌根共生特点是黄花茅在酸化严重的人工草地上侵入和扩大的一个重要原因。

关键词: 酸性土壤, 黄花茅, 菌根, 共生

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