Fig. 3

Evolution of the chlorophyll content in corn plantlets according to -TMA-IONPs concentration (Chl a—chlorophyll a, Chl b—chlorophyll b, TC—total chlorophylls) (left axis) and the chlorophyll a/b ratio (Chl a/Chl b) (right secondary axis). Data are presented as mean ± standard deviation. * Statistically significant differences (p < 0.01), ** statistically significant differences (p < 0.05) compared to the control.