Figure 4.

Impact of biochar or absorber amendments on the energy distribution of incident light in leaves of Chenopodium quinoa Willd. (ICBA-5 variety) after culture without any NaCl addition or 27 days of salt treatment. (A) Electron transport rate (ETR); (B) quantum yield of photosystem II (Y(II)); (C) non-photochemical quenching (Y(NPQ)) and (D) fraction of energy that is passively dissipated in the form of heat and fluorescence (Y(NO)). Control (0), 300 mM NaCl (300), biochar (Bc), absorber (Ab).