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. 2017 Aug 30;9(5):plx045. doi: 10.1093/aobpla/plx045

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© The Author 2017. Published by Oxford University Press on behalf of the Annals of Botany Company.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — Mean %¹³C for each compound (see Methods for calculation of each compound) for (A) α-pinene, (B) β-pinene, (C) Δ³-carene, (D) 1,8-cineole, (E) limonene, (F) myrcene and (G) p-cymene of all trees before (Day 2, 1200 h), during the ¹³C labelling (grey band, Day 2, 1300 h until 1800 h) and after labelling (Days 3 to 7, 1200 h). Error bars represent the standard error. Small letters show the result of a paired Wilcoxon signed-rank test by comparing Day 2 at 1200 h (non-labelled) with the 1700 h (Day 2, labelled) and the post-labelling 1200 h samples (Days 3 to 7). Letter ‘b’ indicates significant group differences for each comparison (P < 0.05), while letter ‘a’ corresponds to non-significant differences, thus pre-labelling fractions.