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All Journal Jurnal Fitopatologi Indonesia El-Hayah : Jurnal Biologi Jurnal Entomologi Indonesia
Triasih, Unun
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology

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Journal : Jurnal Fitopatologi Indonesia

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Characterization of Soil Rhizospheric Fungi on Citrus Plantation and Their Potential to Inhibiting the Growth of Botryodiplodia theobromae and Colletotrichum gloeosporioides Triasih, Unun; Wuryantini, Susi; Agustina, Dina
Jurnal Fitopatologi Indonesia Vol. 18 No. 5 (2022): September 2022
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.18.5.205-212

Abstract

Characterization of Soil Rhizospheric Fungi on Citrus Plantation and Their Potential to Inhibiting the Growth of Botryodiplodia theobromae and Colletotrichum gloeosporioidesThe rhizosphere soil around the roots of citrus plants has microorganisms, one of which is a fungus. The aim of this study was to identify the rhizosphere fungi of Siam Pontianak organic citrus gardens and their potential to inhibit the growth of the pathogenic fungi Botryodiplodia theobromae and Colletotrichum gloeosporioides. The characterization of the fungus was carried out by evaluating its growth at different temperatures, humidity and pH levels, then an antagonist test was performed on C. gloeosporioides and B. theobromae. The fungi obtained from the rhizosphere of Siam Pontianak citrus organic farming were Fusarium sp., Fusidium sp., Penicillium sp., Trichoderma sp. All rhizosphere fungi grow optimally at pH 4.5–5.5, temperature 20–30 ℃ and humidity 60–80%. The fungus Penicillium sp. had the highest ability to inhibit the growth of C. gloeosporioides (83.66%), while Trichoderma sp. able to inhibit the growth of the highest pathogen B. theobromae (92.04%). Further studies are needed before applying the obtained fungal isolates as biocontrol agents for C. gloeosporioides and B. theobromae.
Antifungal and Antibacterial Activity of Essential Oils of Kaffir Citrus Fruit Peel Extract Against Important Pathogens of Citrus Plants Triasih, Unun; Ikarini, Imro’ah; Widyaningsih, Sri; Wicaksono, Rudi Cahyo
Jurnal Fitopatologi Indonesia Vol 19 No 6 (2023): November 2023
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.19.6.246-252

Abstract

Penyakit utama tanaman jeruk yang disebabkan oleh cendawan dan bakteri dapat menghambat pertumbuhan tanaman sehingga berdampak terhadap penurunan produksi tanaman. Pengendalian yang diterapkan selama ini kebanyakan menggunakan pestisida kimia sintetis yang berpotensi memberi dampak negatif pada lingkungan dan kesehatan. Minyak atsiri dari kulit buah jeruk purut (Citrus hystric) mempunyai kandungan senyawa yang berpotensi dalam menghambat pertumbuhan patogen pada tanaman jeruk. Tujuan dari penelitian ini adalah mengetahui aktivitas antifungal dan antibakteri minyak atsiri kulit buah jeruk purut pada lima konsentrasi 0.5%, 1%, 2%, 3%, dan 5% terhadap patogen tanaman jeruk, yaitu Colletotrichum gloeosporioides, Fusarium oxysporum, dan Xanthomonas axonopodis. Hasil penelitian menunjukkan bahwa semua konsentrasi minyak atsiri yang diujikan mempunyai daya hambat kategori rendah terhadap F. oxysporum, dan kategori sedang terhadap C. gloeosporioides. Pengujian terhadap X. axonopodis menunjukkan daya hambat kategori kuat untuk konsentrasi 3% dan 5%. Minyak atsiri kulit buah jeruk purut berpotensi sebagai antifungal dan antibakteri pada tanaman jeruk dan dapat digunakan sebagai teknologi alternatif pengendalian yang ramah lingkungan dan aman.
Co-Authors Dina Agustina, Dina Ikarini, Imro’ah Kurniawan Budiarto Mizu Istianto Mutia Erti DWIASTUTI Otto Endarto Rasiska Tarigan Sri Widyaningsih Susi Wuryantini, Susi wicaksono, rudi cahyo