Figure 1.

Biomass of switchgrass cv Alamo. (A) Root fresh weight, (B) shoot fresh weight, (C) total fresh weight, (D) root dry weight, (E) shoot dry weight, and (F) total dry weight. Control = noninoculated control plant without Cd stress; Cd = noninoculated Cd-control plant with 20 µ mol L⁻¹ CdCl₂ stress; Bc09, So23, E02, Oj24, and Mixed (combination of the four strain) = plant inoculated with endophytic PGPB without Cd stress; and Bc09 + Cd, So23 + Cd, E02 + Cd, Oj24 + Cd, and Mixed + Cd (combination of the four strain) = plant inoculated with endophytic PGPB with 20 µ mol L⁻¹ CdCl₂ stress. The bar represents ±SE (n = 5). Columns not sharing a significance letter are significantly different according to Duncan’s Multiple Range Test at p < 0.05. The dash pattern indicates the biomass of that treatment is significantly different among the treatments.