Table 1 Chlorophyll fluorescence parameters used in this study [25 – Supplemental Data 1].
From: Comparative study of the photosynthetic efficiency and leaf structure of four Cotoneaster species
Parameter | Name | Formula |
|---|---|---|
F0 | Minimal fluorescence in the dark-adapted state | Measured |
Fm | Maximal fluorescence in the dark-adapted state | Measured |
F0’ (F0_Lss) | Steady-state minimum fluorescence in light | Measured |
Fm’ (Fm_Lss) | Steady-state maximum fluorescence in light | Measured |
Ft | Steady-state fluorescence in light | Measured |
Fp | Peak fluorescence during the initial phase of the Kautsky effect | Measured |
Fv/Fm | Maximum PSII quantum yield in dark-adapted state | (Fm – F0)/Fm |
qP | Coefficient of photochemical quenching in steady-state | (Fm′ − Ft)/(Fm′ − F0′) |
qN | Coefficient of non-photochemical quenching in steady-state | 1 – (Fm’ – F0’) / (Fm – F0) |
Rfd | Chlorophyll fluorescence decrease from maximum to steady state fluorescence | (Fp – Ft)/Ft |
QY | Steady-state PSII quantum yield | (Fm′ − Ft)/Fm′ |
