ALELOPATI TANAMAN KUNYIT (Curcuma longa) TERHADAP Ganoderma boninense PENYEBAB PENYAKIT BUSUK PANGKAL BATANG KELAPA SAWIT

KARLINA, LIDYA and Suwandi, Suwandi and Muslim, A. (2024) ALELOPATI TANAMAN KUNYIT (Curcuma longa) TERHADAP Ganoderma boninense PENYEBAB PENYAKIT BUSUK PANGKAL BATANG KELAPA SAWIT. Masters thesis, Sriwijaya University.

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Abstract

Turmeric (C. longa) is known to contain various bioactive compounds that have the potential to inhibit the growth of G. boninense, the causative agent of basal stem rot disease in oil palm. This study aims to identify the metabolomic compounds, understand the mechanisms of action, and evaluate the antifungal activity of turmeric root exudates and rhizome extracts against G. boninense. The research includes three experiments: allelopathy testing of root exudates, metabolomic analysis of root exudates, and antifungal testing of rhizome extracts. The first experiment showed that turmeric root exudates exhibited negative allelopathy, with the ability to inhibit the growth of G. boninense and decolorize tannins in a concentration-dependent manner, as well as being influenced by the plant's ecotype. Root exudates from turmeric plants originating from Palembang exhibited the highest inhibition, with an average of 40%. The second experiment, through metabolomic analysis, identified 13 abundant compounds in the root exudates that have the potential to inhibit G. boninense, including (-)-Menthylacetate, (+/-)9,10-Dihydroxy-12Z-Octadecenoic Acid, and Furmecyclox, which showed prominent antifungal activity. In the third experiment, methanol extracts of turmeric rhizomes exhibited strong antifungal activity, with the highest growth inhibition and tannin decolorization observed in rhizomes from Surabaya and Bandung. Treatment with the rhizome extract also caused hyphal malformation and an increase in EC values, indicating cell membrane leakage. Overall, the findings of this study suggest that turmeric exudates and extracts have great potential to be developed as an environmentally friendly biocontrol agent to combat G. boninense.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Ganoderma boninense, eksudat kunyit, ekstrak rimpang kunyit, antifungi
Subjects:	S Agriculture > S Agriculture (General) > S539.5-542.3 Research. Experimentation
Divisions:	05-Faculty of Agriculture > 54104-Botany (Plant Science) (S2)
Depositing User:	Lidya Karlina
Date Deposited:	03 Jan 2025 02:46
Last Modified:	03 Jan 2025 02:46
URI:	http://repository.unsri.ac.id/id/eprint/162202

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