| Data extracted from the recorded fluorescence of chlorophyll a | ||||
| Fluorescence at 50 μs | F0 | |||
| Maximal fluorescence, when all Photosystem II reaction centers are closed | Fm | |||
| Variable fluorescence | Fv | |||
| Maximum quantum yield of primary photochemistry | Fv/Fm | |||
| The especific fluxes expressed per reaction centre (RC) | ||||
| Absorption per RC | ABS/RC | =[(TR0/RC)/(TR0/ABS)] | ||
| Trapping at time zero, per RC | TR0/RC | = (MO/VJ) | ||
| Dissipation at time zero, per RC | DI0/RC | =[(ABS/RC) − (TR0/RC)] | ||
| Electron transport at time zero, per RC | ET0/RC | =[(TR0/RC) (ET0/TR0)] | ||
| The yields | ||||
| Maximum quantum yield of primary photochemistry | φPo (TR0/ABS) | =Fv/Fm = 1 − ( F50μs/Fm) | ||
| Maximum quantum yield of non photochemical deexcitation | φDo (DI0/ABS) | =DIO/ABS = 1 – φP0 = (F50μs/Fm) | ||
| Probability that a trapped exciton moves an electron further than QA− | Ψo (ET0/TR0) | = 1 − VJ | ||
| Vitality indexes | ||||
| Performance Index | PIABS | =(RC/ABS)[φP0/(1 − φP0)][Ψ0/(1 – Ψ0) | ||