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. 2016 Dec 23;9(1):plw090. doi: 10.1093/aobpla/plw090

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© The Authors 2016. Published by Oxford University Press on behalf of the Annals of Botany Company.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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(A) Leaf photosynthesis under saturating light (A_sat), (B) stomatal conductance (g_s), (C) transpiration (E), (D) instantaneous water use efficiency (WUEi), (E) the estimated maximum carboxylation capacity (V_cmax), (F) SPAD value and (G) leaf water potential (Ψ_l) of Solanum lycopersicum seedlings throughout the experiment. Values are means ± SE (n = 4–6). The grey area represents the period during which a 7-day 42 °C heat wave was applied. The vertical line represents the day when droughted seedlings were rehydrated. Treatments: AW–Ambient temperature plus well watered; AD– Ambient temperature plus drought; HW–Heat wave plus well watered; HD–Heat wave plus drought.