Table 3 The fluorescence parameters

V_t = (F_t − F_o)/(F_m − F_o)

Relative variable fluorescence at time t

W_OJ = (F_t − F_o)/(F_J − F_o)

Ratio of variable fluorescence F_t − F_O to the amplitude F_J − F_O

W_OK = (F_t − F_o)/(F_K − F_o)

Ratio of variable fluorescence F_t − F_O to the amplitude F_K − F_O

PI_total

Performance index for the conservation of energy from photons absorbed by the PS II antenna to the reduction of PSI acceptors

φ_Eo

Quantum yield of the electron transport flux from Q_A to Q_B

F_v/F_m

Maximum quantum yield of primary photochemistry

φ_Ro

Quantum yield of the electron transport flux until the PSI electron acceptors

δ_Ro

Efficiency with which an electron from Q_B is transferred until PSI acceptors

ψ_Ro

Electron transport efficiency except Q_A

ψ_Eo

Electron transport efficiency from Q_A⁻ to the PSI electron end acceptors

OEC activity

oxygen-evolving complex activity;

OEC centers = [1 − (V_K/V_J)] _treatment / [1 − (V_K/V_J)] _control