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. 2011 Mar 7;62(10):3489–3499. doi: 10.1093/jxb/err038

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© 2011 The Author(s).

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

This paper is available online free of all access charges (see http://jxb.oxfordjournals.org/open_access.html for further details)

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Fig. 4. — Quantum efficiency of PSII electron transport (as indicated by chlorophyll fluorescence data for the apparent PSII quantum efficiency ΔF/F'_m) as a function of incident irradiance I_inc at ambient air CO₂ with 21% (filled circles) and 2% (open circles) O₂ levels for rice, potato, and maize. Each data point represents the mean of measurements from four replicated plants.