Table 1.
Biometry and biomass in açaí palm seedlings (5 months old) inoculated with rhizobacteria: UFRA-35, UFRA-38, UFRA-58, UFRA-61, UFRA-92, BRM-32111, and BRM-32113
| Variables/isolatesa | Groups | ||
|---|---|---|---|
| 1 | 2 | 3 | |
| Control | UFRA-35; UFRA-38; UFRA-58; UFRA-61; UFRA-92; BRM-32111 | BRM-32113 | |
| Biometry | |||
| Plant height (cm) | 34.26 B* | 44.88 A | 47.34 A |
| Collar diameter (mm) | 6.36 C | 7.25 B | 7.67 A |
| Leaf number | 3.0 B | 3.0 B | 4.0 A |
| Leaf area (cm2) | 183.46 C | 281.15 B | 388.88 A |
| Root length (cm) | 22.70 B | 30.76 A | 30.08 A |
| Robustness index | 5.16 B | 6.07 A | 6.37 A |
| Biomass | |||
| Root dry mass (g) | 0.72 B* | 1.22 A | 1.20 A |
| Leaf dry mass (g) | 0.78 C | 1.19 B | 1.66 A |
| Shoot dry mass (g) | 1.42 C | 2.33 B | 2.98 A |
| Total dry mass (g) | 2.14 C | 3.54 B | 4.18 A |
| Root/shoot ratio | 0.51 A | 0.52 A | 0.40 B |
Isolates were clustered into class according to Euclidian similarity matrix. *Means with different letters are significantly different at P ≤ 0.05 according to the Student-Newman-Keuls test, using the R software