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. 2021 Jun 11;10(6):1198. doi: 10.3390/plants10061198

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Concentrations of total chlorophylls (a + b) (mg g⁻¹ DW) (A) and total carotenoids (mg g⁻¹ DW) (B) in leaves of grapevine Tinto Velasco (TV), Ambrosina (AMB), and Pasera (PAS) grown at (1) ambient (~400 µmol mol⁻¹) CO₂ concentration (AC) and ambient temperature (AT) (ACAT); (2) AC and elevated (T + 4 °C, ET) temperature (ACET); (3) elevated CO₂ (700 µmol mol⁻¹, EC) and AT (ECAT), and (4) EC and ET (ECET). Bars represent means ± S.E. (n = 3–6). Within each graph and grapevine variety, bars topped by same letter indicate that values do not differ significantly (p > 0.05). DW = dry weight.