Table 1 Dose-effect and M. incognita inoculum level of P. lilacinum PLSAU-1 on plant growth parameters, gall index, number of egg masses per root, final nematode population, reproduction factor, % egg mass colonized by P. lilacinum PLSAU-1, and soil colonization by P. lilacinum PLSAU-1 (CFU/g soil) in brinjal
Dose | Shoot length (cm) | Shoot fresh weight (g) | Root length (cm) | Root fresh weight (g) | Gall index | Number of egg mass/root | Final nematode population (105) | Reproduction factor Pf/Pi | % Egg mass colonized by P. lilacinum PLSAU-1 | Soil colonization by P. lilacinum PLSAU-1 (CFU/g soil) |
|---|---|---|---|---|---|---|---|---|---|---|
Untreated inoculated control | 20.89c | 10.87b | 10.18c | 6.12b | 6.73a | 65.03a | 4.61a | 54.86a | 0b | 0d |
1 × 105 CFU/g soil | 25.12a | 12.78a | 12.38b | 6.03b | 4.38b | 34.40b | 4.06b | 12.64b | 29.38a | 3855.00a |
5× 105 CFU/g soil | 23.39ab | 11.53b | 12.52b | 5.49b | 3.88b | 19.30c | 3.97b | 11.65b | 34.17a | 4363.50b |
1 × 106 CFU/g soil | 22.19bc | 10.97b | 15.24a | 7.74a | 2.55c | 16.95c | 3.90b | 9.50b | 45.88b | 5275.35c |
Inoculum level (eggs per 100 cm3 soil) | ||||||||||
Uninoculated control | 27.33a | 13.81a | 14.89a | 6.53a | 0.00d | 0.00c | 0.00c | 0.00b | 0c | 0d |
400 | 24.45b | 12.75ab | 13.12b | 6.09b | 4.00c | 27.03b | 4.77b | 31.71a | 37.59a | 4100.00b |
800 | 22.95b | 11.92bc | 12.69c | 5.50c | 5.31b | 44.88a | 5.02b | 26.78a | 36.31a | 4550.00a |
1600 | 20.78c | 10.5cd | 12.00c | 5.50c | 5.78b | 48.51a | 5.32a | 25.27a | 41.41a | 3617.00c |
3200 | 18.98c | 8.711d | 10.29d | 5.00d | 6.81a | 48. 94a | 5.57a | 24.16a | 34.31b | 2940.00d |