Effects of Arbuscular Mycorrhizal Fungi on Grass and Weed in Acidic Andosol

Effects of Arbuscular Mycorrhizal Fungi on Grass and Weed in Acidic Andosol
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酸性安多土壤中丛枝菌根真菌对草和杂草的影响

DOI:
10.4028/www.scientific.net/amm.281.664
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发表时间:
2013-01
期刊:
Applied Mechanics and Materials
影响因子:
--
通讯作者:
Sugawara Kazuo
Sugawara Kazuo
中科院分区:
其他
文献类型:
--
作者:
Wu En;Xin Guorong;Sugawara Kazuo

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随着火山灰和土壤酸化的加剧,人工牧草鸭茅(Dactylis glomerata L.)逐渐退化,被杂草植物Anthoxanthum odoratum L.取代,但其机制尚不清楚。为了揭示其作用机理,本研究以土壤为基质,探讨了丛枝菌根真菌对D. glomerata和A.通过温室试验,研究了酸性土壤中不同pH梯度对香榧生长的影响。结果表明,D. glomerata受土壤pH的影响较大,而A.但odoratum还没有。菌根共生对D. glomerata和A.芳香剂考虑到A.酸性草地中的臭草是酸性土壤中丛枝菌根共生专一性的来源。团伞花
With the aggravation of volcanic ash Andosol acidification, artificial forage grass Dactylis glomerata L. gradual degradation, replaced by weed plant Anthoxanthum odoratum L., but the mechanism is unclear. In order to reveal the mechanism, this study used Andosol soil as matrix, explored the effects of arbuscular mycorrhizal fungi on D. glomerata and A. odoratum at different pH gradients in acidic Andosol by glasshouse experiment. The results show that the mycorrhizal colonization of D. glomerata strongly affected by soil pH, but the A. odoratum was not yet. The mycorrhizal symbiosis led to a positive effect on growth and P uptake of D. glomerata and A. odoratum. Consider to invasion and expansion of A. odoratum in severity acidic pasture is origin of this specificity on arbuscular mycorrhizal symbiosis in acidic soil other than D. glomerata.
DOI: --
发表时间: 2010
期刊: --
影响因子: --
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