Fig. 5
Effect of different concentrations of TiO2 QDs foliar spray on growth of Hibiscus plants in terms of a plant height (cm), b total fresh wt. (g), c leaves number and d total dry wt. (g). Data are the mean of three replicates ± standard error (error bars, n = 3). Different letters above bars indicate a significant difference between treatments using ANOVA followed by Duncan’s multiple range test (p < 0.05)