Table 3 Effect of the different concentrations of the cyanobacterium-based Ag-NP, ACE, AgNO3 solutions and vydate nematicide on the number of galls developed on faba bean roots and J2 population of Meloidogyne javanica in soil under greenhouse conditions during 2018 and 2019 seasons
Treatments | Concentrations (ml/kg soil) | Season 2018 | Season 2019 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Gall index (GI) | Galls/root system | J2/250 cm3 of soil | Gall index (GI) | Galls/root system | J2/250 cm3 of soil | ||||||
No. | Reduction% | No. | Reduction% | No. | Reduction% | No. | Reduction% | ||||
Cyanobacterium-based Ag-NPs | 1 | 7.7abc | 80.00cd | 39.62 | 203.33cd | 32.22 | 8.0a | 83.33b | 21.87 | 120.00def | 40.00 |
2 | 7.0c | 63.25de | 52.26 | 151.66e | 49.44 | 6.3bc | 53.33c | 50.00 | 93.33f | 53.33 | |
3 | 5.0d | 28.25f | 78.67 | 40.00f | 86.66 | 4.0e | 23.33d | 78.12 | 38.00g | 81.00 | |
Aqueous extract of Nostoc sp. (ACE) | 1 | 9.0a | 123.33a | 6.92 | 266.66ab | 11.11 | 8.0a | 96.66ab | 9.37 | 180.00ab | 10.00 |
2 | 8.2 abc | 112.50ab | 15.09 | 230.00bc | 23.33 | 8.0a | 90.00ab | 15.62 | 153.33bcd | 23.33 | |
3 | 8.5ab | 103.75abc | 21.69 | 186.66de | 37.78 | 7.6ab | 80.00b | 24.99 | 136.66cde | 31.67 | |
AgNO3 | 1 | 7.5abc | 82.50bcd | 37.73 | 216.66cd | 27.78 | 7.8ab | 86.66b | 18.75 | 160.00bc | 20.00 |
2 | 7.2bc | 77.50cd | 41.50 | 153.33e | 48.89 | 6.2cd | 56.66c | 46.87 | 100.00ef | 50.00 | |
3 | 5.3d | 31.25ef | 76.41 | 48.33f | 83.89 | 4.6de | 26.66d | 75.00 | 50.00g | 75.00 | |
Vydate 24% SL. | Â | 3.3e | 11.50f | 91.32 | 20.00f | 93.33 | 3.4e | 11.00d | 89.68 | 32.00g | 84.00 |
Nematode-infected soil (control1) |  | 8.7a | 132.50a | – | 300.00a | – | 8.3a | 106.66a | – | 200.00a | – |