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. 2020 Mar 6;11:249. doi: 10.3389/fpls.2020.00249

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Copyright © 2020 Harrap, Hempel de Ibarra, Knowles, Whitney and Rands.

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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Flowers and control samples as placed under the robot during sampling. (A) a Vinca herbacea flower. (B) The T control; an empty horticulture tube. (C) The TL control; an empty horticultural tube with the tubes lid on. (D) The TLP control; an empty horticulture tube with a lid and mouldable putty applied. (E) An Eschscholzia californica flower, note the putty used to keep the flower upright. (F) The TW control; a horticultural tube filled to the same level as when flowers were sampled. (G) The TWL control; a water filled horticulture tube with its lid applied. (H) The TWLP control; a water filled tube with the lid and mouldable putty applied.