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. 2020 Feb 25;11:150. doi: 10.3389/fpls.2020.00150

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Copyright © 2020 Perich, Hund, Anderegg, Roth, Boer, Walter, Liebisch and Aasen

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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Diurnal variation of H2 values on the 2018-06-16 and the 2018-06-20 (top) for all genotypes (black) and for “stay green” genotypes (red). Data were gathered using the blending mode set to “average.” Axis times in hours:minutes, local time. Diurnal variation of the temperature, the photosynthetically active radiation (PAR in μmol m⁻²s⁻¹) and the vapor pressure deficit (VPD) on the 2018-06-16 and the 2018-06-20 (bottom). The vertical lines correspond to the start time of the unmanned aerial vehicles (UAV) flights.