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. 2016 Feb 4;7:56. doi: 10.3389/fpls.2016.00056

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Copyright © 2016 Li, Kromdijk, Heuvelink, van Noort, Kaiser and Marcelis.

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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Standard error of fitting non-rectangular hyperbola to instantaneous net leaf photosynthesis rates as a function of incident PPFD (Eq. 2) in summer growing season in the control treatment (n = 3), and in winter growing season in the control as well as in diffuse light treatments (n = 4; as see in Figure 4 which shows one replicate under each specific condition). Data used for curve fitting in this figure were collected on clear days. Error bars show ± SE. Letters within each growing season show statistical significant differences (P < 0.05).