Pemanfaatan Mikroorganisme Antagonis untuk Mengendalikan Penyakit Hawar Bakteri (Xanthomonas campestris pv. malvacearum) pada Kapas
Abstract
Bacterial blight of cotton caused by Xanthomonas campestris pv. malvacearum is one
of the important cotton diseases. The pathogen infects all of part of the plant from seedling to fully
develop plant. In South Sulawesi, bacterial blight caused severe damage to the plant resulting yield
lost up to 50 %. Biological control is now a popular control method for plant diseases.This study
aimed to explore bacterial antagonists of bacterial blight. Exploration was conducted in Asembagus,
Singosari and Karangploso. Bacteria were isolated from soil and cotton plant parts (root, sleaf, and
stem). Six of 140 isolates were able to inhibit the growth of X. campestris pv. malvacearum in vitro.
However, only 2 isolates (Asb-D-3 and Asb-D-5) have capability of reducing the disease severity on
48,48% and 45,64% respectively.
of the important cotton diseases. The pathogen infects all of part of the plant from seedling to fully
develop plant. In South Sulawesi, bacterial blight caused severe damage to the plant resulting yield
lost up to 50 %. Biological control is now a popular control method for plant diseases.This study
aimed to explore bacterial antagonists of bacterial blight. Exploration was conducted in Asembagus,
Singosari and Karangploso. Bacteria were isolated from soil and cotton plant parts (root, sleaf, and
stem). Six of 140 isolates were able to inhibit the growth of X. campestris pv. malvacearum in vitro.
However, only 2 isolates (Asb-D-3 and Asb-D-5) have capability of reducing the disease severity on
48,48% and 45,64% respectively.
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Published
2008-03-04
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