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Impact of biochar (BC) or absorber (AB) amendments on ETR/Anet ratio of Chenopodium quinoa Willd. (variety ICBA-5) plants with light saturation (1200 PPFD) after culture without additional NaCl (control), or for 27 days at 300 mM NaCl. Values represent mean ± SE (n = 5), and the different letters a to c indicate significant differences between the treatments. Control (0), 300 mM NaCl (300), biochar (Bc), absorber (Ab).
