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. 2023 Jul 6;14:1204512. doi: 10.3389/fmicb.2023.1204512

Figure 9.

Figure 9

Visible effect of different treatments on shoot and root of maize (A) and concentration-dependent effect of different treatments on root length (B), root length density (C), root volume (D), average diameter (E), root biomass (F), shoot biomass (G), root–shoot ratio (H), germination percentage (I), and vigor index (J) exposed to EO-grafted CuNPs and grown in a pot. Data (mean ± standard errors) on the y-axis with different letters are significantly different in each graph (Tukey HSD, p ≤ 0.05). Data documented 35 DAS. Treatment used for 1st, 2nd, 3rd, 4th, 5th, and 6th pots are ST (EGC) @250 mg L−1, ST (EGC) @500 mg L−1, ST (EGC)@ 1,000 mg L−1, ST (CuNPs)@ 1,000 mg L−1, and ST (EO) @ 1,000 mg L−1, respectively. ST, seed treatment; EGC, essential oil-grafted CuNPs; CuNPs, copper nanoparticles; EO, essential (clove oil).