Although r.ETR max and r.α had a significant trend across wavelengths, they do not provide enough information to understand the spectral dependence of photosynthesis in detail, which is a function of light absorption, given here by Sigma(II) λ ( Schreiber, Klughammer & Kolbowski, 2012 ).
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Underwater light climate and wavelength dependence of microalgae photosynthetic parameters in a temperate sea.
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For the random effects, intercepts of all parameters were highly significant, but their slopes were not, except for ETR max and E k in relative (r) and absolute (II) values ( Table 2 ).
We expected high r.α and especially α(II) under blue wavelengths and thus a decreasing trend from 440–590 nm, with a small increase at 625 nm.