Isolation and screening of Pseudomonas fluorescens isolates against Fusarium oxysporum f. sp. radicis-lycopersici and their effects on seedling growth of Paraserianthes falcataria

Abstract. Yusran Y. 2023. Isolation and screening of Pseudomonas fluorescens isolates against Fusarium oxysporum f.sp. radicis-lycopersici their effects on seedling growth Paraserianthes falcataria. Biodiversitas 24: 2294-2301. plays a major role in biological control pathogens plant promotion as well with various mechanisms. The aim the present study was to determine biochemical characteristics several spp. screen them root pathogenic fungus f.sp (FORL) evaluate effect enhancement falcataria (L.) I.C. Nielsen seedlings. About 28 were isolated from rhizosphere plants identified based physiological morphological characters reactions. All tested for ability suppress FORL vitro. inhibited varying inhibition zones. Six P. showed highest zones, namely TMTP4, TMTP5, TMTP6, SCPA1, SCPB3 Proradix. results that eight isolates, SCPB3, SMPB3, TMTA2 Proradix had significantly different compared treatment increasing Based our findings, it confirmed some could be used potential bio-inoculants controlling diseases caused by fertilizer increase growth.