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The utilization of cellulolytic fungi, specifically Trichoderma sp, as decomposers represents an effort to accelerate the bioconversion process and enhance the quality of organic fertilizers. In addition to their decomposing abilities, Trichoderma sp also possess the capability to inhibit pathogen growth. This study aims to identify Trichoderma fungi associated with patchouli soil, roots and stems. Analyzing the ability of Trichoderma isolates patchouli as bioconversion of organic waste for quality compost and able to increase disease plant resistance. The Trichoderma identification methods included soil, root, and stem sampling of patchouli plants in Ranto Sabon Village, Aceh Jaya, for isolation, purification, and identification. Five isolates of Trichoderma fungi were molecularly identified as longibrachiatum (2 isolates) and T. yunnanense (3 isolates). Composting of six types of organic waste, including patchouli waste, coffee grounds, rain tree leaves, water hyacinth, rice straw, and sawdust, was conducted with three treatments: control, addition of T. harzianum, and addition of T. yunnanense. The addition of T. harzianum or T. yunnanense in composting organic materials resulted in physical and physicochemical characteristics that met the Indonesian National Standard (INS): 19-7030-2004, except for treatments with sawdust. Compost from organic materials such as patchouli waste, rain tree leaves, and coffee grounds with the addition of T. harzianum or T. yunnanense showed the best patchouli seedling growth rate performance. In contrast, T. yunnanense performs better than T. harzianum as an organic compost bioconversion in improving patchouli seed resistance by increasing the peroxidase activity value of pathogen-inoculated patchouli seeds. |
