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. 2019 May 24;9:7813. doi: 10.1038/s41598-019-44251-x

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Asymptotic DSSAT response to elevated CO₂. Wheat uses an asymptotic look-up multiplier on RUE for the relative response to elevated CO₂ to produce biomass. The asymptotic look-up multiplier for modeled effects of elevated CO₂ on RUE is given in the WHCER045.spe file. Regression equation was fitted to show the response of CO₂ factor, photosynthesis with CO₂ reference and validated by coefficient of determination (R²).