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. 2021 Jan 20;10(2):200. doi: 10.3390/cells10020200

Figure 2.

Figure 2

Chlorophyll a fluorescence parameters measured in 4-week-old wild-type and mutant plants. (A) Fv/Fm, maximum quantum efficiency of PSII; (B) ΦPSII, quantum yield of PSII; (C) qP, photochemical quenching; (D) NPQ, non-photochemical quenching. Values are means (±SD) of 24 plants per genotype from at least two independent experiments (n = 24). Asterisks indicate significant differences from the wild type, according to the Tukey’s HSD multiple comparison test at the level of p < 0.05 (*), p < 0.005 (**), or p < 0.001 (***).