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Photosynthesis parameters of LL- and HL-grown plants. A, Fv/Fm. Data are the means ± se (n = 6). B, Maximum oxygen evolution rate (Pmax). Oxygen evolution was measured at a saturating PFD of 1,790 μmol photons m-2 s-1 for HL-grown plants and 1,380 μmol photons m-2 s-1 for LL-grown plants. Data are the means ± sd (n = 4-6).
