Isolasi dan Uji Kemampuan Rizobakteri Indigenous sebagai Agensia Pengendali Hayati Penyakit pada Tanaman Cabai
Abstract
ABSTRACT. Sutariati, G.A.K and A. Wahab. 2010. Isolation and Efficacy Trial of Indigenous Rhizobacteria as Biocontrol Agents of Fungal Diseases of Hot Pepper. A number of fungal pathogens have caused various diseases in hot pepper (Capsicum annuum L.). Since the utilization of chemical fungicides has negative impact to the environment, application of naturally available antagonistic microorganisms has been developed to control fungal pathogens. Rhizobacteria have been used for disease control and plant growth enhancement. The objectives of this experiment were to isolate local rhizobacteria from surrounding hot pepper roots, explored from Southeast Sulawesi especially from Konawe, South Konawe, Kendari, Muna, and Buton Regencies, and to characterize the effectiveness of the isolates to inhibit colony growth of hot pepper fungal pathogens, namely Colletotrichum capsici and Fusarium oxysporum. In this experiment, 20 potential isolates of indigenous rhizobacteria were found, i.e 14 isolates of P. fluorescens, two isolates of Serratia spp., and four isolates of Bacillus spp.. All of the 20 isolates were able to inhibit colony growth of fungal pathogens and potential to be used as biocontrol agents of fungal diseases of hot pepper.
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PDFDOI: http://dx.doi.org/10.21082/jhort.v20n1.2010.p%25p
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