Table 2 Biocontrol potential of native Bacillus thuringiensis against root knot nematode Meloidogyne incognita in tomato
Treatments | No. of egg masses/5 g root | %decrease | No. of eggs/egg mass | %decrease | No. of adult females/5 g root | % decrease | Final nematode population/kilogram soil | % decrease | Root gall index | % reduction |
|---|---|---|---|---|---|---|---|---|---|---|
Isolate BD | 7.33 ± 2.15 | 76.09 ± 9.85 | 140.00 ± 11.25 | 48.40 ± 5.42 | 13.00 ± 2.53 | 64.53 ± 15.28 | 143.00 ± 12.36 | 73.15 ± 8.56 | 1.66 ± 0.25 | 61.66 ± 13.25 |
Isolate BC | 6.33 ± 1.78 | 79.35 ± 12.36 | 135.66 ± 13.25 | 50.00 ± 6.25 | 11.66 ± 1.78 | 68.14 ± 16.56 | 149.33 ± 13.68 | 71.96 ± 13.36 | 1.66 ± 0.25 | 61.66 ± 12.36 |
Reference strain 4 M1 | 10.22 ± 3.38 | 66.66 ± 17.36 | 152.33 ± 15.66 | 43.85 ± 6.32 | 17.33 ± 3.52 | 52.72 ± 11.56 | 165.33 ± 16.68 | 68.96 ± 15.23 | 3.00 ± 0.35 | 30.71 ± 4.85 |
Soil application of Carbofuran at 1 kg a.i/ha | 21.00 ± 5.20 | 31.50 ± 4.32 | 218.33 ± 20.63 | 19.53 ± 3.25 | 27.33 ± 4.56 | 25.45 ± 6.85 | 314.67 ± 25.63 | 40.92 ± 23.56 | 3.00 ± 0.35 | 30.71 ± 4.85 |
Control | 30.66 ± 6.82 | 0 | 271.33 ± 25.65 | 0 | 36.66 ± 6.25 | 0 | 532.66 ± 35.68 | 0 | 4.33 ± 0.56 | 0 |