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. 2018 Dec 21;9:1879. doi: 10.3389/fpls.2018.01879

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Copyright © 2018 Thijs, Witters, Janssen, Ruttens, Weyens, Herzig, Mench, Van Slycken, Meers, Meiresonne and Vangronsveld.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Cadmium and Zn extraction potential (g ha^-1 year^-1) of tobacco clones, sunflower mutants and poplar, willow clones evaluated on the experimental field. In case of tobacco and sunflower, extraction potential of identical clones/mutants were averaged over 2 years. Each clone is shown as a dot, connected with the spider-lines, and the overall average per group is indicated with the thick dot. Groups are colored, based on 90% ellipses. In case of commercial poplar and willow clones, results reflect data from Table 3.