Table 2. Root and shoot biomass (%) of four cultivars of sorghum (SRN-39, SQR, BRS330 and BRS509) inoculated with five bacterial isolates.
| Cultivars | Bacterial isolate | Root biomass (%) | Shoot biomass (%) |
|---|---|---|---|
| SRN-39 | Control | 18.10 ± 1.19c | 22.20 ± 0.73c |
| IAC/BECa 99 | 21.52 ± 0.75b,c | 23.66 ± 0.50b,c | |
| IAC/BECa 128 | 24.83 ± 3.03a,b,c | 25.22 ± 0.98b | |
| IAC/BECa 135 | 27.48 ± 3.20a,b | 23.82 ± 0.37b,c | |
| IAC/BECa 141 | 21.46 ± 2.06b,c | 23.94 ± 0.68b,c | |
| IAC/BECa 152 | 31.47 ± 1.74a | 28.51 ± 1.34a | |
| SQR | Control | 29.52 ± 2.84a | 22.21 ± 0.88a |
| IAC/BECa 99 | 24.50 ± 2.25a | 19.62 ± 1.15a | |
| IAC/BECa 128 | 25.67 ± 1.90a | 19.56 ± 0.97a | |
| IAC/BECa 135 | 31.15 ± 3.24a | 19.69 ± 0.64a | |
| IAC/BECa 141 | 29.26 ± 3.56a | 20.31 ± 0.87a | |
| IAC/BECa 152 | 33.64 ± 1.59a | 20.94 ± 0.37a | |
| BRS330 | Control | 13.19 ± 0.69b,c | 20.75 ± 0.35a |
| IAC/BECa 99 | 12.58 ± 0.48b,c | 19.92 ± 0.54ab | |
| IAC/BECa 128 | 11.77 ± 0.69c | 19.82 ± 0.32b | |
| IAC/BECa 135 | 19.17 ± 2.30a | 21.24 ± 0.33a | |
| IAC/BECa 141 | 16.14 ± 1.02a,b | 19.91 ± 0.48a,b | |
| IAC/BECa 152 | 18.43 ± 0.98a | 20.50 ± 0.30a,b | |
| BRS509 | Control | 24.13 ± 2.00a,b | 25.38 ± 1.46a |
| IAC/BECa 99 | 20.79 ± 2.60b | 23.56 ± 0.23a | |
| IAC/BECa 128 | 24.57 ± 0.88a,b | 22.73 ± 0.65a | |
| IAC/BECa 135 | 28.29 ± 2.38a | 22.48 ± 0.44a | |
| IAC/BECa 141 | 20.68 ± 1.62b | 22.97 ± 0.48a | |
| IAC/BECa 152 | 24.04 ± 1.70a,b | 23.44 ± 1.50a |
Notes:
Root and shoot biomass (%) of four cultivars of sorghum (SRN-39, SQR, BRS330 and BRS509) inoculated with five bacterial isolates IAC/BECa 99 (Kosakonia radicincitans), IAC/BECa 128 (Enterobacter asburiae), IAC/BECa 135 (Burkholderia tropica), IAC/BECa 141 (Pseudomonas fluorescens), and IAC/BECa 152 (Herbaspirillum frisingense).
The values are means of replicates (n = 6) ± (SE). For each parameter, letters compare (on column) the means between the bacterial inoculums treatments within the same cultivar. Means followed by the same letter are not statistically different by Duncan test (P < 0.05).