Fig. 7
Rapid Chl-fluorescence induction kinetics of Chlorella cultures measured at midday in cultures of low and optimum biomass density (2.3 versus 6.5 g DW L−1). The curves were double-normalised to F 0 and F m to distinguish differences in the intermediate steps J and I, which represent various reduction states of the PSII electron carriers. Three to five records were averaged to construct each induction curve
