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Abstrait
ANTAGONISM COMPETENCE OF Trichoderma spp. ISOLATES AGAINST Rhizoctonia solani KUHN
Suciatmih & Maman Rahmansyah
Antagonism test in-vitro of Trichoderma spp. against Rhizoctonia solani Kuhn had been carried out. This study was aimed to clarify the discrepancy antagonistic function inside species biodiversity. Enzyme activities of Trichoderma spp. such as cellulase, chitinase, ligninase, lipase, and protease were observed, while the IAA (indole acetic acid) hormone and phosphate (Ca-phosphate) dissolving capability examined, too. All isolates inhibited R. solani growth with restraint rate between 20.0 to 82.1%. The isolates produced cellulase activity but they did not have any ligninase at all. Forty six isolates produced lipase, 38 isolates of protease, and one isolate of chitinase. Twenty nine isolates released IAA between 0.0958 to 9.2575 ppm and one isolate dissolved phosphate minerals. Every single potential of uniqueness antagonism behavior at each isolate had a chance to future application in agriculture work, particularly to impede population of Rhizoctonia solani as soil born pathogen in the horticulture activity.