Morphological characteristics of osvit2 plants grown at different Fe concentrations. a–c: Shoot length. d–f: Root length. g–i: SPAD value. a, d, and g: –Fe (0 μM Fe-EDTA). b, e, and h: +Fe (100 μM Fe-EDTA). c, f, and i: ++Fe (500 μM Fe-EDTA). Vertical bars followed by an asterisk indicate a significant difference from the WT according to the Tukey–Kramer test (p < 0.05; n = 4).