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. 2015 Jun 3;66(18):5493–5505. doi: 10.1093/jxb/erv241

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© The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 3. — Scatter plots and linear regressions are shown for the relationship of the total number of nodes in a root crown with the total number of nodal roots in a root crown in both South Africa (SA, A) and the USA (B). Points are the mean of four replicates for each genotype. Data from high nitrogen (HN) are depicted with filled circles and in low nitrogen (LN) with filled triangles. Solid lines indicate the linear model of best fit for HN (y=6.09x+0.92; P=0.0066) and LN (y=4.82x+4.49; P=0.00266) in SA. Solid lines indicate the linear model of best fit for HN (y=8.44x–19.83; P=0.0177) and LN (y=3.07x+11.26; P=0.0082) in the USA. (This figure is available in colour at JXB online.)