EXPLORATION OF ANTAGONISTIC FUNGI AGAINST Ganoderma sp. AS CAUSAL AGENT OF BASAL STEM ROT DISEASE IN OIL PALM

Mariana Mariana, Ismed Setya Budi

Abstract


One of the obstacles to increased production of oil palm is the basal stem rot disease. Control measures that have good prospects and are more environmentally friendly biological control antagonists by utilizing existing in the plant (endophyte) and around the roots (rhizosphere), however this will be a very effective control when the pathogen population in the field is low. The study aims to explore the rhizosphere and endophytic antagonists, as well as studying the mechanism of antagonist. Exploration conducted at six centers of oil palm plantations in South Kalimantan . Isolated from fruiting bodies of Ganoderma taken from the field. Antagonist test was conducted using direct opposition. Antagonistic mechanism analysis performed by dual culture technique on glass objects, exploration results found 52 isolates of endophytic and rhizosphere. The best results are exploration isolates of Trichoderma spp., Mucor sp., and Acremonium sp. Observations mechanism occurs in space competition antagonist Trichoderma and Mucor sp. Mycoparasitism of Trichoderma spp. and Acremonium sp on Ganoderma occurs by means of hyphae wrapped by hyphae of Trichoderma.

Keywords


Ganoderma, Rhizosphere and Endophytic antagonist, Oil palm

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