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INDONESIA
Jurnal Fitopatologi Indonesia
Published by Institut Pertanian Bogor
ISSN : 02157950     EISSN : 23392479     DOI : -
Core Subject : Health,
Medicine & Pharmacology
Jurnal Fitopatologi Indonesia (JFI) is an official publication owned by the Indonesian Phytopathology Society (Perhimpunan Fitopatologi Indonesia). In 2010, JFI management was given to PFI Komda Bogor. Since then, JFI has been published 6 times (January, March, May, July, September, and November).
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol. 16 No. 3 (2020)" : 5 Documents clear
Potency of Endophytic Bacteria from Brotowali (Tinospora crispa) as Biocontrol of Sclerotium rolfsii and Plant Growth Promoting Abdul Munif; Kholil Ma’ruf
Jurnal Fitopatologi Indonesia Vol. 16 No. 3 (2020)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.16.3.95-104

Abstract

Sclerotium rolfsii merupakan salah satu patogen penting pada kacang tanah yang dapat menyebabkan penyakit busuk pangkal batang. S. rolfsii dapat bertahan hidup di dalam tanah dan membentuk struktur dorman. Penelitian ini bertujuan mengevaluasi bakteri endofit dari tanaman brotowali yang berpotensi sebagai agens hayati yang efektif untuk mengendalikan S. rolfsii dan mengetahui pengaruhnya pada pertumbuhan tanaman kacang tanah. Bakteri endofit diisolasi dari akar dan batang tanaman brotowali dengan metode sterilisasi permukaan. Bakteri endofit yang berhasil diisolasi dari tanaman brotowali ialah 415 isolat dan 153 isolat lolos uji keamanan hayati. Sebanyak 7 isolat bakteri endofit, yaitu BBT25, BBT90, BBT102, BBT106, BBT110, BBT130, dan BSK18 berpotensi menekan S. rolfsii. Isolat BBT106 mampu menekan pertumbuhan S. rolfsii sebesar 73% secara in vitro. Isolat BBT110 dan BSK18 mampu menekan kejadian penyakit busuk pangkal batang sebesar 58% dan 67% pada penelitian di rumah kaca. Ketujuh isolat bakteri endofit brotowali mampu meningkatkan pertumbuhan tanaman kacang tanah pada percobaan di rumah kaca.
Wakatobi Native Bacteria Inhibit The Colony Growth of Alternaria porri and Fusarium oxyporum of Shallots in in Vitro Study Gusti Ayu Kade Sutariati; Andi Khaeruni; Abdul Madiki
Jurnal Fitopatologi Indonesia Vol. 16 No. 3 (2020)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.16.3.105-111

Abstract

Wakatobi Native Bacteria Inhibit The Colony Growth of Alternaria porri and Fusarium oxyporum of Shallots in in Vitro Study Biological control of plant diseases based on the usage of microbes is important to reduce the use of chemical pesticides. The aim of this study was to determine the inhibitory and inhibitory mechanism in vitro of native endophytic bacterial isolates from Wakatobi as biological control of fusarium wilt and purple spots on shallot plants. The research was carried out at the Agronomy Unit of Agrotechnology Laboratory, Agriculture Faculty, Halu Oleo University Kendari. The research was aranged in a Completely Randomized Design (RAL), consisting of 9 treatments of endophytic bacterial isolates, namely Be03, Be02, Ke03, Ke05, Te01, Te05, Re05, Re05, and Wae05. The experiment was repeated 3 times wih 27 treatment units in total. The inhibitory test of endophytic bacteria on the tested pathogens was carried out in 2 steps, namely (1) against Alternaria porri and (2) Fusarium oxysporum. In addition to observing the inhibition mechanisme may involve. The ability of the endophytic bacteria isolates in producing HCN compounds was also tested. The results showed that endophytic bacteria had the ability to inhibit the growth of pathogenic fungi A. porri and F. oxysporum. Among the 9 isolates tested, there were 2 endophytic bacterial isolates which had the best ability to inhibit the growth of pathogenic A. porri and F.oxysporum fungi namely Te05 and Be03. Be03 isolates also have a high ability in producing HCN compounds, but no for Te05. Further research is needed to assay the effectiveness of those 2 isolates as biological control for diseases of shallot in a larger scale in the field.
Pengendalian Burkholderia glumae pada Benih Padi dengan Perlakuan Panas Kering dan Minyak Cengkeh Kresnamurti Kurniasih; Giyanto Giyanto; Meity Suradji Sinaga; Kikin Hamzah Mutaqin; Eny Widajati
Jurnal Fitopatologi Indonesia Vol. 16 No. 3 (2020)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.16.3.123-134

Abstract

Control of Burkholderia glumae in Rice Seed by Dry Heat and Clove Oil Treatments Burkholderia glumae is a seed-borne pathogen that causes bacterial grain rot (BGR) ​disease in rice. This study aims to obtain ​disease in rice. This study aims to obtain B. glumae control techniques in rice seeds using a combination of dry heat and clove oil treatment without reducing the quality of rice seeds. This research consisted of several stages, namely: 1) preparation of healthy and infected seeds of B. glumae, 2) determination of the temperature and duration range of treatment that effectively reduced of the B. glumae population without reducing the viability of healthy seeds, 3) the effect of dry heat treatment on population B. glumae and seed viability of infected seed, 4) determination concentration of clove oil that decreases B. glumae population without decreasing seed viability of healthy seed, 5) the effect of clove oil treatment on B. glumae population and seed viability of infected seed and 6) combination of dry heat and clove oil treatment to control B. glumae in infected seed. The study showed that B. glumae population in rice seeds reduced as much as 97.68%, 98.00% dan 99.38% by dry heat treatment at 55 °C for 3, 4, and 5 hours without decreasing seed germination (seeds germination respectively 92%, 94% dan 93%). Application of clove oil 0.5% and 0.75% were able to reduce the bacterial population of 86.61% and 98.26% with the seed germination of 90.25% and 90.00%. The combination of 0.75% clove oil treatment followed by dry heat treatment at 55 °C for 5 hours eliminated all B. glumae in rice seeds without reducing the seed germination
Evaluation of Plant-based Pesticide containing Neem Extract (Azadirachta sp.) to Control Anthracnose Growth in Chili Fruits Yashanti Berlinda Paradisa; Wahyuni; Enung Sri Mulyaningsih; Ambar Yuswi Perdani; Arief Heru Prianto
Jurnal Fitopatologi Indonesia Vol. 16 No. 3 (2020)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.16.3.112-122

Abstract

Cabai merupakan salah satu produk hortikultura yang banyak dikonsumsi di Indonesia. Antraknosa merupakan salah satu penyakit utama dalam budi daya cabai. Kehilangan hasil akibat antraknosa mencapai 35%. Penelitian ini bertujuan untuk menentukan efektivitas pestisida nabati dengan bahan utama ekstrak mimba dalam mengendalikan antraknosa pada cabai. Penelitian ini dilakukan di Pusat Penelitian Bioteknologi, LIPI. Pengujian in vitro dilakukan menggunakan rancangan acak kelompok faktorial yang diulang 4 kali dengan faktor pertama ialah cendawan Colletotrichum acutatum dan Colletotrichum gloeosporioides; faktor kedua ialah pestisida nabati dengan bahan aktif mimba (Agr I dan Agr II); serta faktor ketiga berupa 6 taraf perlakuan konsentrasi pestisida (0%, 0.5%, 1%, 2%. 3%, 4%, dan 5%). Pada pengujian in vivo dilakukan menggunakan rancangan acak kelompok faktorial dengan 4 ulangan. Faktor pertama ialah cabai besar dan cabai keriting; faktor kedua ialah C. acutatum dan C. gloeosporioides; dan faktor ketiga ialah 4 taraf konsentrasi pestisida Agr I (0%, 5%, 10, dan 15%). Berdasarkan hasil pengujian diketahui bahwa pestisida nabati Agr I dan Agr II dapat menghambat pertumbuhan cendawan secara in vitro dan Agr I lebih potensial untuk mengendalikan Colletotrichum spp. Namun pestisida nabati Agr I tidak mampu mengendalikan patogen yang telah berada di dalam jaringan tanaman.
Potensi Ekstrak Lengkuas sebagai Fungisida Nabati untuk Mengendalikan Penyakit Karat Daun Anggur (Phakopsora euvitis) Ani Widiastuti; Reza Fredo Simarmata; Christanti Sumardiyono
Jurnal Fitopatologi Indonesia Vol. 16 No. 3 (2020)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.16.3.135-143

Abstract

Potency of Galangal Extract as Botanical Fungicide to Control Grape Leave Rust Disease (Phakopsora euvitis) Grape leaf rust caused by Phakopsora eutivitis is an important disease on grape plants. Botanical pesticide is important to be developed as its application may reduce the usage of synthetic chemical pesticides. This study aimed to determine potency of galangal extract as botanical fungicide against P. euvitis, compared with mancozeb. The methods were galangal extract preparation in evaporated methanol, in vitro toxicity test of galangal extract for LC50 determination, and in planta test using grape seedlings in polybags. LC50 was determined by using SAS JMP Statistical Discovery Program. In planta test was carried out by spraying urediniospore suspension with density of 1 x 106 spores.mL-1, followed by galangal extract or mancozeb spraying at LC90 concentration three days after inoculation. The result showed that galangal extract inhibited spore germination of P. euvitis. LC50 of the galangal extract was 18.33 ppm; LC90 was 53.72 ppm; while mancozeb LC50 was 65.52 ppm and LC90 was 190.71 ppm. In planta experiment showed that galangal extract of 53.72 ppm (LC90) reduced the disease intensity of leaf rust by 16% on the 18th day, while mancozeb of 190.71 ppm (LC90) reduced the disease intensity by 26.4% compared to positive control or untreated-inoculated plants. This study showed that galangal extract is potential to be developed as botanical fungicide to control grape leaf rust disease

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