TABLE 2.
Combined PGPR traits of rhizospheric and endophytic bacterial isolates.
| Isolate | Phosphate solubilization index | IAA (µg/mL) | HCN | Siderophore | Ammonia | Biofilm | EPS | Catalase |
|---|---|---|---|---|---|---|---|---|
| MC1 | 1.05a | + | – | + | – | – | – | Positive |
| MC3 | 3.30 d | +++ | ++ | ++ | + | + | + | Positive |
| MC4 | 1.35a | +++ | + | + | + | – | + | Positive |
| MC6 | 1.17a | +++ | + | ++ | + | – | – | Positive |
| MC8 | 1.08a | ++ | – | – | – | – | – | Positive |
| MC9 | 1.12a | ++ | – | – | – | – | – | Positive |
| SR2 | 2.25 b | +++ | – | + | ++ | ++ | ++ | Positive |
| SR3 | 3.10 d | + | ++ | + | ++ | + | + | Positive |
| SR4 | 1.25a | + | – | – | – | ++ | ++ | Positive |
| SR7 | 2.50c | +++ | – | + | – | – | – | Positive |
| SR9 | 1.20a | + | – | – | – | – | – | Positive |
| K1III | 2.60c | +++ | + | + | + | + | + | Positive |
| K1IV | 1.90 b | ++ | – | – | – | + | + | Positive |
| K2I | 1.40a | +++ | – | – | – | – | – | Positive |
| K2III | 1.10a | ++ | – | + | + | + | + | Positive |
–=no activity;+= weak activity; ++=moderate activity, +++=strong activity. Means with different lowercase letters in the same column differ significantly atp<0.05 according to Tukey post hoc test.