Potential antifungal effects of silver nanoparticles (AgNPs) of different sizes against phytopathogenic Fusarium oxysporum f. sp. radicis-lycopersici (FORL) strains

Abstract Fusarium species are the primary fungal pathogen affecting agricultural foodstuffs both in crop yield and economic loss. Due to these problems, control of phytopathogenic fungi has become one critical problems around World. Nanotechnology is a new technology with potential many fields, including agriculture. This study focused on determining effects silver nanoparticles (AgNPs) different nanosizes (3, 5, 8 10 nm) at concentrations (12.5–100 ppm) against oxysporum f. sp. radicis-lycopersici (FORL) strains. The maximum antifungal activity was achieved by decreasing nanosize increasing concentration AgNPs. Mycelium growth abilities were decreased about 50%, 75% 90% AgNPs treatment 3 nm sizes 25 ppm, 37.5 ppm 50 concentrations, respectively. productivity biomass liquid media found be too limited 25–37.5 all sizes. In addition, septation number dimensions micro- macroconidia gradually application nanoparticles. work showed that low could used as agents applied for phytopathogens.