ACRONYMS AND EQUATIONS
CHAPTER 6
6
Acronyms and Equations
6.1
Relative Fluorescence Yields
Typically, five different types of fluorescence yields are acquired by
saturating pulse analyses. Two of these yields need to be established
with the dark-acclimated sample. The three remaining yields are repeat-
edly measured during subsequent sample treatments, for example, expo-
sure to actinic light (see Figure 6.1).
6.1.1
Measurements with Dark-acclimated Samples
F
0
Minimum fluorescence level excited by very low intensity of
measuring light to keep PS II reaction centers open.
F
M
Maximum fluorescence level elicited by a strong light pulse
which closes all PS II reaction centers.
Figure 6.1: Measurements for Saturating Pulse Analysis.
AL, actinic light; D,
dark; SP, saturating pulse; FR, far-red illumination.
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