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dc.contributor.authorNakashima, Hiroshien
dc.contributor.authorFujita, Yasuhitoen
dc.contributor.authorTanaka, Hiroakien
dc.contributor.authorMiyasaka, Juroen
dc.contributor.alternative中嶋, 洋en
dc.contributor.alternative藤田, 穏人en
dc.contributor.alternative田中, 宏明en
dc.contributor.alternative宮坂, 寿郎en
dc.identifier.citationHiroshi Nakashima, Yasuhito Fujita, Hiroaki Tanaka and Juro Miyasaka 2008. A model of root elongation by dynamic contact interaction . Plant Root 2: 58-66 .en
dc.description.abstractRecent findings on the functions of roots from the chemical and biological standpoints have strengthened the need for research on the mechanisms of root growth by physical and mathematical approaches. This study was aimed at developing a root growth model, based on dynamic interactions between the root and its ambient environment. As a tool for modelling, we employed the discrete element method (DEM) with the assumption that root growth could be expressed in terms of dynamic interactions between growing root elements and soil elements. Using a corresponding time scale, the results of a DEM simulation indicated a sufficiently accurate shape of root elongation, which could be verified by a root growth experiment. Moreover, a comparison of fractal dimensions from DEM results and experimental results showed almost similar values of 1.0, which is the dimension of a line.en
dc.publisherJapanese Society for Root Researchen
dc.rightsCopyright (c) 2008 Japanese Society for Root Researchen
dc.subjectcomputational mechanicsen
dc.subjectdiscrete element methoden
dc.subjectphysics modelen
dc.subjectroot elongationen
dc.subjectroot growthen
dc.subjectroot-soil systemen
dc.titleA model of root elongation by dynamic contact interactionen
dc.type.niitypeJournal Articleen
dc.identifier.jtitlePlant Rooten
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