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. 2011 Jan 27;62(6):1857–1869. doi: 10.1093/jxb/erq370

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© 2011 The Author(s).

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

This paper is available online free of all access charges (see http://jxb.oxfordjournals.org/open_access.html for further details)

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Fig. 6. — Grounding resistance-curves (R_g) determined empirically for a Pedunculate oak (rectangles), a metal rod set close to the tree (closed triangles) and modelled values (open circles). Measurements were done close to Wilrijk, Belgium.