Main Article Content
Antagonistics microorganisms, such as actinomycetes, are potential biological control agents for plant diseases. Mass culture of actinomycetes to provide enough inoculum for field application is sometimes costly. Therefore alternative medium with simple preparation and relatively less costly is required for mass culture of actinomycetes. This research was conducted to evaluate the ability of 4 actinomycetes isolates, i.e. APS 7, APS 9, APS 12, and ATS 5, in suppressing growth of Sclerotium rolfsii in vitro and to assess the growth of actinomycetes in alternatif medium containing organic wastes, i.e sawdust and bran. Among 4 tested isolates of actinomycetes only APS 7 showed its potency as biocontrol agents for S. rolfsii with growth suppression rate of 91.73% after 3 weeks incubation. In general, both sawdust and bran has the potency as culture medium for APS 7. After 8 weeks incubation period the average population of actinomycetes grew in culture medium containing sawdust and bran was 335 x 106 cfu/g and 331 x 106 cfu/g, respectively.
Key words: biocontrol agents, bran, organic waste
Authors who publish in Jurnal Fitopatologi Indonesia agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (CC BY-SA) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.