EFEKTIVITAS JAMUR Rhizoctonia binukleat TERHADAP PENERKEMBANGAN PATOGEN BUSUK BATANG VANILI (Fusarium oxysporum f.sp. vanillae) SECARA IN VITRO

Fusarium oxysporum f.sp. vanillae is a pathogenic fungus for vanilla plants. The fungi have a chitin cell wall that can be degraded by chitinase from the chitinolytic  Rhizoctonia binucleate of fungi. The aim of this research was to determine how the interaction between the  F. oxysporum f.sp. vanillae and Rhizoctonia binucleate were isolated from the plant rhizosphere. The chitinolytic activity was measured based on the clear zone around the colony in the chitin medium. The interaction of fungi was determined by an antagonistic test. This research showed that Rhizoctonia binucleate is chitinolytic, antagonist, and alternative of bio fungicide to F.oxysporum f.sp. vanillaeFusarium oxysporum f.sp. vanillae is a pathogenic fungi for vanili plants. The fungi have chitincell wall that can be degraded by chitinase from chitinolytic Rhizoctonia binucleate of fungi.Aim of this research was determine how the interaction between the F. oxysporum f.sp. vanillaeand Rhizoctonia binucleate were isolated from plant rizosfere. Chitinolytic activity weremeasured based on the clear zone around the colony in chitin medium. Interaction of fungi weredetermined by an antagonistic test. This research showed that Rhizoctonia binucleate ischitinolytic, antagonist and alternative of biofungiside to F.oxysporum f.sp. vanillae