Table 1 Efficacy of different microbial formulations against root-knot nematode (average initial nematode population = 309.1 J2s per 200 cc soil) in bottle gourd (Pooled for 2018–2019)
Treatment | Final M. incognita J2 population | Root gall index | Yield (t/ha) | % Increase in yield over control | |
|---|---|---|---|---|---|
200 cc soil | 5 g root | ||||
T1—Neem cake@1 t/ha | 215.0 (14.60)a | 34.2(5.82) | 2.83 | 14.39 | 3.61 |
T2—P. putida@10 g/kg of seed | 198.3 (13.62) | 25.0(5.00) | 2.41 | 15.23 | 8.93 |
T3—B. megaterium@10 g/kg of seed | 157.3 (12.54) | 24.8(4.98) | 2.31 | 16.12 | 13.96 |
T4—B. amyloliquefaciens@10 g/kg of seed | 195.0 (13.95) | 27.2(5.20) | 2.53 | 15.50 | 10.51 |
T5—P. fluorescens@10 g/kg of seed | 148.2 (12.14) | 21.8(4.65) | 1.98 | 16.05 | 13.58 |
T6—Neem cake@1 t/ha + P. putida@10 g/kg of seed | 130.0 (11.73) | 21.0 (4.56) | 1.83 | 17.33 | 19.97 |
T7—Neem cake@1 t/ha + B. megaterium@10 g/kg of seed | 148.8 (12.15) | 21.8(4.66) | 2.03 | 17.56 | 21.01 |
T8—Neem cake@1 t/ha + B. amyloliquefaciens@10 g/kg of seed | 158.7 (12.47) | 22.3 (4.73) | 2.24 | 16.51 | 15.99 |
T9—Neem cake@1 t/ha + P. fluorescens@10 g/kg of seed | 124.5(11.14) | 18.7(4.31) | 1.68 | 17.66 | 21.46 |
T10—Carbofuran@1.0 kg a.i./ha | 177.0(13.29) | 27.3(5.23) | 2.30 | 17.08 | 18.79 |
T11—control (untreated check) | 332.5 (17.87) | 41.2 (6.41) | 3.42 | 13.87 | – |
CD (P = 0.05) | 3.59 | 0.70 | 0.76 | 2.61 | – |