Fig. 6
Growth of H. syriacus seedlings at different time periods after foliar application with ZnSO4 (50 mg/L) and ZnO NPs (30, 50 and 90 nm at 10, 50 and 100 mg/L), (A) leaf length, (B) leaf width, (C) seedling height. Data are shown as mean ± standard deviation of three replications. Significant differences (p < 0.05) are indicated by column lines labelled with different letters according to Duncan’s test.
