Johanis Panggeso
Agrotechnology Study Program at the Faculty of Agriculture, Tadulako University

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CURRENT STATUS ON CACAO DISEASE INCIDENCE IN CENTRAL SULAWESI Nur Edy; Margaret Angelia; Irwan Lakani; Johanis Panggeso
AGROLAND The Agricultural Sciences Journal (e-Journal) Vol 6 No 1 (2019): June
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/agroland.v6i1.93

Abstract

Central Sulawesi is the largest cocoa bean producer in Indonesia. However, cocoa production constrained by important diseases. Currently, data about cocoa beandamage due to pathogen infection have not been updated. This study observed the incidence of major diseases in cacao plantations, included pod rot, canker, and vascular-streak dieback (VSD). The study located at the largest cacao plantation in Palolo, Central Sulawesi. The observation pronounced that the cacao trees in the study sites were infected by the pathogens of pod rot, canker, and VSD with different incidence levels. VSD was a disease with the highest incidence and distribution in the cacao plantations. Besides, this study also described the symptom of the disease.
INDIGENOUS TRICHODERMA SPP. COLLECTED FROM SHALLOT FIELDS SUPPRESS FUSARIUM ROT DISEASE Mohammad Yunus; Nur Edy; Vinsensia Pato; Moh. Hibban Toana; Johanis Panggeso; Flora Pasaru; Asrul Asrul
AGROLAND The Agricultural Sciences Journal (e-Journal) Vol 6 No 2 (2019): December
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/agroland.v6i2.179

Abstract

Antagonist fungi have enormous potential to be a biological agent to control Fusarium basal rot (FBR) disease in shallot. This study aims to explore, isolated, and tested the antagonistic of Trichoderma sp. indigenous isolated from shallot fields against FBR disease. Exploration of isolates was carried out at the shallot planting center in Sigi Regency. The isolation characterization and inhibition tests were carried out at the Laboratory of Plant Pathology Tadulako University. The inhibition test was using two culture methods. The results showed that there were Trichoderma sp. obtained from shallot fields in the village of Sidera. In vitro test results showed Trichoderma sp., which was found to be able to inhibit the growth of the fungus F. oxysforum. The highest inhibition reached 69.18% within six days. As a comparison of inhibition of Trichoderma harzianum, a laboratory collection, within 6 days only reached 61.06%. Trichoderma sp. the origin of shallot fields was more effectively used as a biological agent in controlling FBR disease.