Uji rizobakteri agen biokontrol terhadap Rigidosporus microporus pada Tanaman Pala (Myristica fragrans) secara in vitro
Abstract
Rhizobacterial test of bio control agent toward Rigidosporus microporus on Nutmeg Plants (Myristica fragrans) in vitro
Abstract. This study aims to determine the effect of rhizobacteria types that have potential as bio control agents on the pathogenic inhibitory power of Rigidoporus microporus on nutmeg plants in vitro which was conducted at the Laboratory of Seed Science and Technology, Faculty of Agriculture, Syiah Kuala University, from March to May 2018. The samples used were pathogenic R. microporus causing white root fungus (JAP) on nutmeg plants and rhizobacterial isolates from healthy plants among diseased plants. The results obtained from this study is there were 44 pure rhizobacterial isolates, after testing the inhibitory power, there were 27 isolates of rhizobacteria that could inhibit R. microporus pathogens and after antagonism test there were 18 isolates of rhizobacteria that could suppress the growth of R. microporus pathogenic colonies. Rhizobacterial isolates with the highest inhibition were found on AP 5/7 with 74.44% inhibition which had features of convex, white colony surface shape, with uneven colony edges and AP 8/2 with 61.11% inhibition which had features of flat colony surface shape, white colour, with uneven edges of colonies.
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DOI: https://doi.org/10.17969/jimfp.v3i4.9381
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