Table II. Definitions of chlorophyll fluorescence parameters
ParameterEquationSimilar ParameterReference
FV/FM(FMF0)/FMvan Kooten and Snel (1990)
NPQd(FMFM′)/FMNPQBilger and Bjorkman (1990)
NPQs(FMt0FM)/FMqZNilkens et al. (2010)
NPQtNPQd + NPQs