Abbreviations: B − blue light supplementation; Car − carotenoids; Chl − chlorophyll; Ci − intercellular CO2 concentration; DEPS − de-epoxidation state of xanthophyll cycle pigments; ETR − electron transport rate; flav − flavonoids; FM − fresh mass; Fv/Fm − maximum quantum yield of PSII; G − green light supplementation; gm − mesophyll conductance; gs − stomatal conductance; J1300 − electron transport obtained at saturating light; LED − light emitting diode; NBI − nitrogen balance index; NS − control; PN -net photosynthetic rate; PNmax − light-saturated net photosynthetic rate; qN − nonphotochemical quenching coefficient; qP − photochemical quenching coefficient; R − red light supplementation; RL − mitochondrial respiration in the light; ROS − reactive oxygen species; SE − standard error; T1/T17 − 1/17 d of light supplementation; TPU − triose phosphate-utilization rate; VAZ − total amount of xanthophyll cycle components; Vcmax − maximum rate of carboxylation of Rubisco; W − white (R:G:B; 1:1:1) light supplementation; XTT − 3'-(1-[phenylaminocarbonyl]-3,4-tetrazolium)-bis(4-methoxy-6-nitro) benzene-sulfonic acid hydrate; α-toc − α-tocopherol; Γ* − CO2 compensation point in absence of respiration; ΦNPQ − quantum yield of nonphotochemical quenching; ΦPSII − operational quantum yield of PSII photochemistry. Acknowledgments: This study was performed in the framework of the PRA 2020-2021 project 'Fragoal' financed by the University of Pisa.
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