Table 3. Effect of powder formulation of biocontrol bacterial isolate ETR17 on root-rot disease incidence of tea plants (TS-520) during in vivo study.
| Treatments | Mean disease index | PEDC* | ||||
|---|---|---|---|---|---|---|
| 15 dapi** | 20 dapi | 25 dapi | 30 dapi | 45 dapi | 45 dapi | |
| Control (Sterilized soil) | 26.7±0.9a | 36.7±1.0a | 58.3±0.9a | 70.0±0.9a | 78.3±0.9a | 0 |
| Control (Unsterilized soil) | 28.3±0.4a | 50.0±0.8b | 63.3±0.7b | 73.3±0.5b | 81.7±0.9a | 0 |
| Fungicide (Sterilized soil) | 0 | 3.3±0.3c | 12.5±0.3c | 23.3±0.7ce | 25.0±0.6b | 68.1±0.5b |
| Fungicide (Unsterilized soil) | 0 | 6.7±0.4dc | 20.0±0.7d | 25.0±0.7c | 28.3±0.8b | 65.4±0.5b |
| ETR17 (Sterilized soil) | 0 | 5.0±0.5dc | 13.3±0.6ec | 16.7±0.7d | 15.0±0.9c | 80.8±0.8c |
| ETR17 (Unsterilized soil) | 0 | 8.3±0.6d | 15.0±0.8d | 20.0±0.4ed | 18.3±0.5c | 77.6±0.6d |
| LSD | 1.3 | 2.0 | 2.2 | 2.1 | 2.4 | 1.6 |
*PEDC = Percent efficacy of disease control
**dapi = days after pathogen inoculation
Means ± standard errorfollowed by same superscript letters do not differ significantly at P<0.05