Table 3.
Plant growth–promoting abilities of the 42 native strains.
| Strains | Ammonia production | IAA (mm) |
P solubilization(mm) | K solubilization (mm) | Siderophore production (mm) | HCN |
|---|---|---|---|---|---|---|
| SD1 | – | 0.00 | 0.00 | 0.00 | 0.00 | + |
| SD2 | + | 7.36ab ±0.03 | 7.00def ±0.00 | 0.00 | 0.00 | + |
| SD3 | + | 3.10defgh ±0.04 | 7.00def ±0.00 | 0.00 | 4.667efgh ±1.15 | + |
| SD4 | – | 0.00 | 0.00 | 0.00 | 0.00 | + |
| SD5 | ++ | 2.51defgh ±0.12 | 8.83b ±0.29 | 0.00 | 1.67ghij ±0.58 | + |
| SD6 | + | 0.00 | 0.00 | 0.00 | 2.00ghij ±1.00 | + |
| SD7 | ++++ | 4.25cde ±0.42 | 7.00def ±0.00 | 25.00ab ±0.57 | 9.00bc ±2.00 | + |
| SD8 | + | 1.96fgh ±0.51 | 7.33cdef ±0.59 | 22.50cd ±0.5 | 0.00 | + |
| SD9 | – | 0.00 | 0.00 | 0.00 | 5.00defg ±2.00 | + |
| SD10 | + | 2.34efgh ±0.13 | 7.67cd ±1.15 | 24.00abcd ±0.00 | 2.33fghij ±0.58 | + |
| SD11 | + | 4.12cdefg ±0.18 | 7.50cde ±0.50 | 24.00abcd ±0.00 | 2.67fghij ±2.98 | – |
| SW1 | + | 3.07defgh ±0.23 | 7.00def ±0.00 | 23.00bcd ±0.57 | 4.00fghij ±1.00 | + |
| SW2 | ++ | 5.63bc ±0.03 | 7.00def ±0.00 | 22.00d ±0.57 | 9.00bc ±1.00 | – |
| SW3 | +++ | 3.61cdefgh ±0.13 | 9.00b ±0.00 | 0.00 | 12.67a ±3.06 | + |
| SW4 | +++ | 1.90cdefgh ±0.64 | 8.67b ±0.58 | 23.00bcd ±0.57 | 9.33ab ±0.58 | + |
| SW5 | – | 0.00 | 0.00 | 0.00 | 1.33hij ±0.58 | – |
| SW6 | – | 0.00 | 0.00 | 0.00 | 2.67fghij ±1.15 | + |
| SW7 | ++ | 3.60cdefgh ±0.44 | 8.00c ±0.00 | 23.00bcd ±0.57 | 0.00 | – |
| SW8 | – | 0.00 | 0.00 | 0.00 | 4.33efghi ±1.15 | – |
| SW9 | + | 0.00 | 0.00 | 0.00 | 1.67ghij ±0.58 | + |
| SW10 | +++ | 0.00 | 0.00 | 0.00 | 3.67fghij ±2.08 | + |
| SW11 | – | 0.00 | 0.00 | 0.00 | 3.67fghij ±1.15 | – |
| SW12 | ++ | 3.34defgh ±0.26 | 7.00def ±0.00 | 0.00 | 8.33bcd ±1.15 | – |
| SW13 | ++ | 2.83defgh ±0.41 | 7.33cdef ± 0.58 | 0.00 | 0.00 | + |
| SW14 | ++ | 8.55a ±0.57 | 8.83d ±0.29 | 26.00a ±0.57 | 7.67bcde ±2.31 | + |
| SW15 | ++ | 1.51h ±0.16 | 7.00def ±1.00 | 24.50abc ±0.00 | 0.00 | + |
| SW16 | + | 4.14cdef ±0.00 | 6.67f ±1.15 | 0.00 | 0.00 | + |
| SW17 | ++ | 0.00 | 0.00 | 0.00 | 1.67ghij ±0.58 | + |
| SW18 | + | 0.00 | 0.00 | 0.00 | 0.00 | + |
| SW19 | +++ | 1.79h ±0.02 | 7.17def ±0.29 | 24.00abcd ±0.5 | 1.67ghij ±0.58 | + |
| SW20 | ++ | 0.00 | 0.00 | 0.00 | 5.00defg ±1.00 | + |
| SW21 | + | 0.00 | 0.00 | 0.00 | 1.00ij ±0.00 | + |
| SW22 | ++ | 2.99defgh ±0.07 | 10.00a ±0.00 | 23.00bcd ±0.57 | 0.667j ±1.15 | – |
| SW23 | ++ | 2.28efgh ±0.29 | 5.83g ±0.29 | 0.00 | 3.67fghij ±1.53 | + |
| SW24 | +++ | 0.00 | 0.00 | 0.00 | 9.00bc ±0.00 | + |
| E1 | +++ | 6.68cd ±0.11 | 7.00def ±0.00 | 25.00ab ±0.57 | 4.33efghi ±0.35 | – |
| E2 | ++ | 0.00 | 0.00 | 0.00 | 3.33fghij ±1.53 | + |
| E3 | +++ | 1.87h ±0.12 | 7.17 def ± 0.29 | 23.00bcd ±0.57 | 5.67cdef ±0.58 | + |
| R1 | + | 0.00 | 0.00 | 0.00 | 10.33ab ±-.58 | + |
| R2 | +++ | 2.38efgh ±0.34 | 8.67b ±0.58 | 22.50cd ±0.00 | 0.00 | + |
| R3 | ++ | 2.00fgh ±0.07 | 6.83ef ±0.29 | 0.00 | 4.00fghij ±1.00 | + |
Values are the mean of three separate experiments in triplicates: ammonia production (based on the intensity of color): absent (-), weak (+), moderate (++), strong (+++), and highly strong (++++). Each value is the mean of three replicates. Different letters indicate significant differences according to the LSD test.