Figure 6.

(A) Bacterial community composition at genus level detected in and on the root tissue of PGPR-inoculated and non-inoculated plants at P0, P1, and P2, and (B) their correlation with plant growth parameters. The correlation between bacterial community composition and plant growth was performed with principal coordinates analysis (PCoA) using Bray–Curtis distance units. The correlations are significant at p = 0.009, p = 0.003, p = 0.001, and p = 0.001 for plant height, root biomass, shoot biomass, and root-to-shoot ratio, respectively. The analysis was based on four biological replications (n = 4), except for P2 + PGPR with n = 2 and P1-PGPR with n = 3 due to insufficient sample material.