The Spatial Variability Patterns of Maize Growth and Root Colonization by Arbuscular Mycorrhizal Fungi in a Small Field
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概要
- 論文の詳細を見る
Maize growth, root colonization by arbuscular mycorrhizal fungi (AM fungi) and by non-AM fungi, and soil properties were studied on a field of Humic Andosol in 1998. The field had been tilled with different intensities since November 1997. A plot was minimum-tilled with a rotary tiller (MT) and the other plot was tilled with a moldboard plow and disc-harrowed (T). The least-squares fit of cubic or quadratic surfaces to the data collected from 9-100 locations in each plot clarified that the dry weight of maize shoot and root colonization by fungi showed a clear spatial variability in the area of 17.5 m × 25 m. Inverse spatial variability patterns between AM fungi and non-AM fungi in both MT and T indicated that there was an apparent competition between them in colonizing maize roots. Maize growth showed a spatial variability pattern similar to that of AM fungal organs, in particular in T. This suggested that the spatial variability pattern of maize in T was more affected by the relationship between AM fungi and non-AM fungi. Site-specific control of AM fungal infection for improving maize growth in small fields was discussed.
- 日本作物学会の論文
著者
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Oyaizu Hiroshi
Department Of Applied Biological Chemistry Division Of Agriculture And Life Sciences The University
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Oyaizu Hiroshi
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
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Oyaizu Hiroshi
Biotechnology Research Center University Of Tokyo
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Oyaizu Hiroshi
Department Of Global Agricultural Science Graduate School Of Agricultural And Life Sciences The Univ
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NAKAMOTO Tomomi
Graduate School of Agriculture and Life Sciences, University of Tokyo
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Yamagishi Junko
Graduate School of Agricultural and Life Sciences, The University of Tokyo
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Funahashi Tomoya
Graduate School of Agricultural and Life Sciences, The University of Tokyo
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Frossard Emmanuel
Institute of Plant Sciences, Swiss Federal Institute of Technology
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Mozafar Ahmad
Institute of Plant Sciences, Swiss Federal Institute of Technology
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Yamagishi J
Univ. Tokyo Tokyo Jpn
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Yamagishi Junko
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
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Mozafar Ahmad
Institute Of Plant Sciences Swiss Federal Institute Of Technology
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Frossard Emmanuel
Institute Of Plant Sciences Swiss Federal Institute Of Technology
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Oyaizu H
Biotechnology Research Center University Of Tokyo
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Nakamoto T
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
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Nakamoto Tomomi
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
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Funahashi Tomoya
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
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