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. 2019 May 23;19:216. doi: 10.1186/s12870-019-1828-5

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Correlations between root and seedling traits in non-stress or osmotic stress conditions. Correlations are displayed as heatmap and as numerical value. Red = negative correlation, blue = positive correlation. The part above the diagonal presents correlations of traits only within non-stress treatment and below the diagonal only within stress treatment. Along the diagonal correlations between the same trait in both treatment are displayed. Correlations values above 0.2 and below −0.2 are significant (P < 0.01)