Fig. 6From: Physiological and agronomical traits effects of titanium dioxide nanoparticles in seedlings of Solanum lycopersicum LAmino acid concentrations in leaves of 30-d-old S. lycopersicum plants grown from seeds treated with TiO2 particles. (A) amino acid concentration and (B) amino acids concentration dynamics during day. Different letters indicate significant differences between treatments using the Tukey test (p ≤ 0.05). Means ± SE, n = 5Back to article page