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. 2010 Aug 8;61(15):4413–4422. doi: 10.1093/jxb/erq244

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© 2010 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. 2. — NIR/red (a) and NDVI (b) plotted against LAI of soybean measured on the same dates in ambient air (open circles), elevated CO₂ (filled circles), elevated O₃ (open triangles), and combined elevated CO₂ and elevated O₃ (grey circles) treatments, including a linear regression for (a) and an exponential regression for (b) (R²=0.86 and 0.71, respectively).