TABLE 1.
Plant growth promotion characteristics of the rice endophytic bradyrhizobial strainsa
| Bacterial strain | mg of IAA · mg of protein−1 | μmol alpha ketobutyrate · h−1 · mg of protein−1 | nmol ARA · h−1 · mg of protein−1 under free-living conditions |
|---|---|---|---|
| SUT-R3 | 1.89 ± 1.25 B | 4.29 ± 0.57 AB | 0 ± 0.00 D |
| SUT-PR9 | 29.44 ± 15.29 A | 5.34 ± 0.26 A | 0.01 ± 0.00 D |
| SUT-PR48 | 5.41 ± 2.20 B | 2.18 ± 0.10 D | 0.11 ± 0.07 CD |
| SUT-R55 | 0.44 ± 0.00 B | 3.29 ± 0.29 BCD | 0.08 ± 0.06 CD |
| SUT-PR64 | 2.76 ± 1.25 B | 3.73 ± 0.52 BC | 0.43 ± 0.12 B |
| SUT-R74 | 10.04 ± 1.38 B | 3.56 ± 0.46 BC | 0.93 ± 0.24 A |
| SUTN9-2 | 0.75 ± 0.36 B | 3.48 ± 0.10 BC | 0.23 ± 0.11 C |
| ORS285 | 4.79 ± 2.60 B | 2.63 ± 0.87 CD | 0 ± 0.00 D |
| PRC008 | 0.52 ± 0.16 B | 2.55 ± 0.62 CD | 0 ± 0.00 D |
a
Different letters in the same column indicate significant differences between treatments (P ≤ 0.05) (n = 3).