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. 2011 Nov 14;6(11):e27195. doi: 10.1371/journal.pone.0027195

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Barto et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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(a) Design of Experiment 2 showing root exclusion compartments (REC) as dashed lines, location of Tagetes plant, and in situ extraction tubing in gray. The CMN is indicated by black lines, and rotation of the REC prevents CMN formation inside. (b–d) Results from Experiment 2 (means ± SE). Bars with different letters indicate significant differences at α = 0.05. (b) Levels of α-T in in situ extraction tubing inside RECs (N = 10). (c) Levels of BBT in in situ extraction tubing inside RECs (N = 10). (d) Above ground biomass of bioassay plants in REC soil after initial harvest (N = 11).