PENGHAMBATAN SERANGAN Sclerotium rolfsii PENYEBAB REBAH KECAMBAH PADA KEDELAI DENGAN BAKTERI KITINOLITIK
Abstract: The inhibition
of Sclerotium rolfsii
as causal agent
of soybean damping
off by using
chitinolytic bacteria were
studied in Laboratory of Observation Pest and Disease UPT-BPTPH 1 and
Laboratory of Microbiology, Department of Biology, Faculty of Mathematics and
Natural Sciences, University of Sumatera Utara, Medan. The aim
of this research
was to investigate
the ability of chitinolytic bacteria
to inhibit the
growth of S. rolfsii. Six isolates of chitinolytic
bacteria were used in this study. The inhibition zone between colony of the bacteria and
the fungus was
measured. The result
showed that the
bacterial isolates has
different ability in inhibiting the growth of S. rolfsii.
Enterobacter sp. BK15 and Bacillus sp. BK13 were the most effective in inhibiting the
growth of S.
rolfsii with inhibition
zone of 3.70
cm and 3.75
cm, respectively. The
less effective was shown by Enterobacter sp. PB17 with inhibition zone
of 0.10 cm, while Enterobacter cloacae LK08 have no ability to inhibit S.
rolfsii. The seeds soaked in bacterial suspension by Bacillus sp. BK13 dan Enterobacter sp. BK15
were able to reduce damping off by 44.4% and 50%, respectively.
Keywords: Bacillus sp.,
damping off, Enterobacter sp., Sclerotium rolfsii, soybean
Penulis: Novi Malinda, Dwi
Suryanto, dan Kiki Nurtjahja
Kode Jurnal: jpbiologidd120019
