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. 2017 Dec 5;8:1996. doi: 10.3389/fpls.2017.01996

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Copyright © 2017 Zhong, Chai, Xu, Li, Ma and Sun.

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) or licensor 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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Dependence of the C isotope composition of leaf dark-respired CO₂ (δ¹³C_l) on (A,D,G) δ¹³C of leaf soluble sugars (δ¹³C_soluble _sugar), (B,E,H) δ¹³C of leaf starch (δ¹³C_starch) and (C,F,I) δ¹³C of leaf lipids (δ¹³C_lipid) in Chloris virgata (annual C₄), Hemarthria altissima (perennial C₄) and Leymus chinensis (perennial C₃). The P values and R² of the linear relationship are provided.