TABLE 4.
Qualitative solubilization of potassium by manganese solubilizing bacterial strains isolated from maize rhizosphere.
| Strains | KSD (mm) | BGD (mm) | KSI | KSE (%) |
| ASH4 | 25.00 ± 1.41a | 5.00 ± 0.70b | 6.13 ± 0.37ab | 512.50 ± 44.19ab |
| ASH6 | ND | ND | ND | ND |
| ASH7 | ND | ND | ND | ND |
| ASH8 | ND | ND | ND | ND |
| ASH9 | ND | ND | ND | ND |
| ASH10 | 23.50 ± 1.06a | 5.00 ± 0.70b | 5.96 ± 0.84ab | 495.83 ± 91.33ab |
| ASH11 | ND | ND | ND | ND |
| ASH12 | 24.00 ± 0.70a | 3.50 ± 0.35b | 8.04 ± 0.87a | 704.17 ± 91.33a |
| ASH17 | 22.00 ± 1.41a | 8.00 ± 0.70a | 3.76 ± 0.02bc | 276.19 ± 6.73bc |
| ASH19 | ND | ND | ND | ND |
| ASH20 | 8.00 ± 0.01b | 4.50 ± 0.35b | 2.80 ± 0.10c | 180.00 ± 14.14c |
| ASH22 | 25.50 ± 1.76a | 3.50 ± 0.35b | 8.33 ± 0.20a | 733.33 ± 23.57a |
| ASH24 | ND | ND | ND | ND |
| LSD | 2.42 | 1.12 | 1.14 | 113.84 |
Manganese solubilizing bacterial strains (MSB); the MSB strains were screened for qualitative solubilization of potassium (K) by spot inoculating bacterial biomass on mica-amended Aleksandrov agar media for 7 days and K solubilization diameter (KSD) and bacterial growth diameter (BGD) were recorded; the K solubilization index (KSI) and K solubilization efficiency (KSE) were calculated through using KSD and BGD; data presented here are the mean of three replications ± standard error and least significant difference (LSD) test was performed at 5% (p ≤ 0.05) probability level; the means in a vertical line for each attributes sharing common letters were considered statistically similar to each other; ND, not detected.