Fluorescence parameters derived from the extracted data

M₀ = 4(F_300μs – F₀)/(F_M – F₀)

Approximated initial slope (in m∙s⁻¹) of the fluorescence transient V = f(t)

Yields or flux ratios

j_Po = TR₀/ABS = [1 – F₀/F_M]

Maximum quantum yield of primary photochemistry at t = 0

j_Eo = ET₀/ABS = [1 – (F_J/F_M)]

Quantum yield for electron transport at t = 0

j_Ro = RE₀/ABS = j_Poy_Eod_Ro =1 – (F_I/F_M)

Quantum yield for the reduction of end acceptors of PSI per photon absorbed

j_Do = 1 − j_Po = F₀/F_M

Quantum yield (at t = 0) of energy dissipation

y_Eo = ET₀/TR₀ = (1 – V_J)

Probability (at t = 0) that a trapped exciton moves an electron into the electron transport chain beyond

d_Ro = RE₀/ET₀ = (1 – V_I)/(1 – V_J)

Efficiency with which an electron can move from the reduced intersystem electron acceptors to the PS I end electron acceptors of PS I

RE₀/TR₀ = y_Eod_Ro

Efficiency with which a trapped exciton move an electron into the electron transport chain from to the PS I end electron acceptors

Specific fluxes or activities per reaction center (RC)

ABS/RC = M₀(1/V_J)(1/j_Po)

Absorption per RC

TR₀/RC = M₀/V_J

Trapped energy flux per RC (at t = 0)

ET₀/RC = M₀(1/V_J) y_Eo

Electron transport flux per RC (at t = 0)

RE₀/RC = (RE₀/ET₀)(ET₀/RC)

Reduction of end acceptors at PSI electron acceptor side per RC at t = 0

Performance index

Performance index on absorption basis

Total PI, measuring the performance up to the PS I end electron acceptors