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. 2023 Feb 6;14:1078128. doi: 10.3389/fpls.2023.1078128

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Copyright © 2023 Li, Muneer, Sun, Guo, Wang, Huang, Li and Zheng

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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Correlation analysis of photosynthetic rate with gas exchange parameters in tobacco plants. (A) correlation between intercellular carbon dioxide concentration (Ci) and net photosynthetic rate (Pn); (B) correlation between total chlorophyll contents (Chl-a+b) and net photosynthetic rate (Pn); (C) correlation between starch and net photosynthetic rate (Pn); (D) correlation between stomatal conductance (Gs) and net photosynthetic rate (Pn); (E) correlation between chlorophyll-a contents (Chl-a) and net photosynthetic rate (Pn); (F) correlation between sucrose and net photosynthetic rate (Pn); (G) correlation between transpiration rate (Tr) and net photosynthetic rate (Pn); (H) correlation between chlorophyll-b contents (Chl-b) and net photosynthetic rate (Pn); (I) correlation between reducing sugar and net photosynthetic rate (Pn). The statistically significant mean differences among various treatments were identified by using Duncan’s test at a significance level of P<0.05.