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. 2020 Jul 29;11:1166. doi: 10.3389/fpls.2020.01166

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Copyright © 2020 Yu, Cui, Chen and Li

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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Photosynthesis and chlorophyll fluorescence parameters determined on the first expanded leaves of Aegilops tauschii Coss at DAP11, DAP13, and DAP15. (A) Net photosynthesis rate, A; (B) the transpiration rate, E; (C) the maximum PSII photochemical efficiency, Fv/Fm; (D) the actual PSII photochemical efficiency, (Y(II)); (E) the photochemical quenching coefficient, qL; (F) the nonphotochemical quenching, NPQ; (G) the PSII electron transport efficiency, ETR. Means and their SDs from three biological replicates are shown. *P < 0.05; **P < 0.01.