| Fluorescence parameters |
| Fo = F50μs
|
Fluorescence intensity at 50 μs |
| F300μs
|
Fluorescence intensity at 300 μs |
| FJ
|
Fluorescence intensity at 2 ms |
| FI
|
Fluorescence intensity at 30 ms |
| FM
|
Maximal fluorescence intensity |
| Wk
|
The ratio of K phase of J phase. Wk = Fk/FJ
|
| VJ
|
Relative variable fluorescence at 2 ms. VJ = (FJ-Fo)/(FM-Fo) |
| Mo
|
Approximated initial slope of the fluorescence transient. Mo = 4(F300μs–Fo) /(FM-Fo) |
| Ψo
|
Probability that a trapped exciton moves an electron into the electron transport chain beyond QA-. ψo = ETo/TR = 1-VJ
|
| Quantum efficiency/flux ratios |
| φEo
|
Quantum yield for electron transport. ETo /ABS = (1-Fo /FM)·ψo
|
| φDo
|
Expresses the probability that the energy of an absorbed photon is dissipated as heat. φDo = 1-φPo = Fo /FM
|
| φPo
|
Maximum quantum yield for primary photochemistry. TRo /ABS = 1-Fo /FM
|
| Phenomenological energy fluxes [per excited cross-section (CS)] |
| ABS/CSm
|
Absorption flux per CS. ABS/CSm≈ FM
|
| TRo/CSm
|
Trapped energy flux per CS. TRo /CSm = φPo·(ABS/CSm) |
| ETo/CSm
|
Electron transport flux per CS. ETo/CSm = φEo·(ABS/CSm) |
| DIo/CSm
|
Dissipated energy flux per CS. DIo/CSm = (ABS/CSm)-(TRo/CSm) |
| RC/CSm
|
Relative number of active PS II reaction centers per excited cross-section. RC/CSm = φPo·(VJ/Mo)·(ABS/CSm) |
| Specific energy fluxes [per Q A-reducing PSII reaction center (RC)] |
| ABS/RC |
Absorption flux per RC. ABS/RC = Mo·(1/VJ) ·(1/φPo) |
| TRo/ RC |
Trapped energy flux per RC. TRo/RC = Mo·(1/VJ) |
| ETo/ RC |
Electron transport flux per RC. ETo/RC = Mo·(1/VJ)·ψo
|
| DIo/ RC |
Dissipated energy flux per RC. DIo/ RC = ABS/RC-TRo/RC |
| Performance Index |
| PIABS
|
Performance Index on absorption basis. RC/ABS·[φPo/(1-φPo)]·[ψo/(1- ψo)] |
| DFABS
|
Proton motive force on absorption basis. DFABS = log(PIABS) |
