Abstract
This study aims to determine the control power of two isolates of Trichoderma obtained from the forest floor soil to the activity of Fusarium oxysporum pathogen causing stem rotation of red chili plant in vitro. The experiment was arranged in complete randomized design using 3 kinds of treatment of Trichoderma sp., T. harzianum isolate and control (without Trichoderma fungi isolate) tested for its antagonistic ability against pathogen; each treatment was repeated 4 times. The observed variable is pathogen inhibition (%). The observational data were analyzed by using variance followed by 5% HSD test to know the difference between treatments. The results showed that T. harzianum (Tc-Jjr-02 isolate) and Trichoderma sp. (Tc-Pjn-01 isolate) were able to inhibit F. oxysporum pathogens respectively 76.9% and 77.1% at 108 hours after inoculation. Both of these Trichoderma fungal isolates can be developed into biocontrol agents for F. oxysporum.
Published Version
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