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. 2020 May 8;11:550. doi: 10.3389/fpls.2020.00550

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Copyright © 2020 Mei, Liu, Fang, Zhou, Ye, Li, Shi, Du, Berninger and Hölscher.

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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(A) Daily accumulated photosynthetic photon flux density (PPFD) and (B) daily averaged soil moisture over five phenological stages (incubation, culm-elongation, branch-development, leafing, established stages of newly sprouted culm). The presented daily averaged soil moisture are averaged values from 3 sensors in the plot, and the standard deviation of daily averaged soil moisture is presented with error bars. Daily PPFD was obtained from one sensor from a micrometeorological station, so there is no variance presented here due to lack of replicates.