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Jurnal Fitopatologi Indonesia

jfiti
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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).

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Articles 5 Documents

Search results for , issue "Vol 10 No 2 (2014)" : 5 Documents clear

Aplikasi Formula Campuran Rizobakteri untuk Pengendalian Penyakit Busuk Akar Rhizoctonia dan Peningkatan Hasil Kedelai di Tanah Ultisol Andi Khaeruni; Asniah Asniah; Muhammad Taufik; Gusti Ayu Kade Sutariati Ayu Kade Sutariati
Jurnal Fitopatologi Indonesia Vol 10 No 2 (2014)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Rhizoctonia root rot disease caused by Rhizoctonia solani is one of the most important disease in soybean area, including at ultisol land in Southeast Sulawesi. Rhizobacteria application is one alternative method to control this pathogen. The aim of this experiment was to study of rhizobacteria indigenous formulation to control of Rhizoctonia root rot disease and increase soybean yield in Ultisol soil. A complete randomized design with seven treatments was used in this experiment. The treatments were (A) rhizobacteria formulation for seed treatment, (B) rhizobacteria formulation for seed treatment and repeated at 2 weeks after planting, (C) rhizobacteria formulation for seed treatment, repeated at 2 and 4 weeks after planting, (D) rhizobacteria formulation for seed treatment and fungicide applied at 2 weeks after planting, (E) fungicide seed treatment, and repeated at 2 weeks after planting, (F) fungicide seed treatment, and repeated at 2 and 4 weeks after planting, and control (without rhizobacteria and fungicides). All treatments were inoculated by R. solani and replicated three times. The results showed that rhizobacteria seed treatment and repeated at 2 and 4 weeks after planting was the most effective treatment to control Rhizoctonia root rot disease, and increase plant height and leaf number up to 119% and 170%, respectively, and increased the yield of soybean up to 1870% in ultisol soil compared to plant with control treatment.

Karakteristik Morfologi dan Fisiologi Isolat Pantoea stewartii subsp. stewartii pada Jagung Yulfi Desi; Trimurti Habazar; Agustian Agustian; Ujang Khairul; Syamsuwirman Syamsuwirman; Prima Novia
Jurnal Fitopatologi Indonesia Vol 10 No 2 (2014)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Pantoea stewartii subsp. stewartii is the pathogen causing stewart’s wilt disease in maize. The occurrence of the disease was recently reported in Indonesia with limited information. Research was conducted to characterize several isolates of P. stewartii subsp. stewartii isolated from maize plants collected from 6 districts in West Sumatra. Leaves showing yellow stripes symptoms along the vein was ground and suspeneded then the bacteria was isolated and incubated for 3 × 24 h at room temperature in nutrient glucose agar (NGA). Pure bacterial colonies gained from this medium was used for characterization. Assessment of bacterial characters was conducted based on morphological assay, physiological assay, biological assay (hypersensitivity, and pathogenicity) followed by polymerase chain reaction (PCR)-based identification. Unique characters of the family Enterobacteriaceae was observed on 7 isolates based on morphological and physiological characters, and only 4 isolates (PR1, PP, ST1, LA) gave positive reaction on hypersensitivity and pathogenicity test. Further molecular identification confirmed 3 out of 7 isolates had high homology to Pantoea stewartii, i.e. Pantoea stewartii strain R1-104, R1-132, and ATCC 29923 for isolates LA, PR1, and PR2, respectively.

Analisis Keragaman Genetik Isolat Bakteri Xanthomonas oryzae pv. oryzae dari Jawa Barat dan Jawa Tengah Berdasarkan Analisis ARDRA Gen 16SrRNA Yadi Suryadi; Dwi N. Susilowati; Puji Lestari; Sutoro Sutoro; Ifa Manzila; Trini Suryani Kadir; Sheryn Sunni Albani; I Made Artika
Jurnal Fitopatologi Indonesia Vol 10 No 2 (2014)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Fifteen Xanthomonas oryzae pv. oryzae isolates from several regions in West Java and Central Java have been studied for their genetic diversity using amplified ribosomal DNA restriction analysis (ARDRA) 16SrRNA gene.Total of 13 ARDRA patterns from digestion of DNA with RsaI restriction enzyme was obtained, indicated higher genetic diversity of X. oryzae pv. oryzae. Phylogenetic analysis revealed a close genetic relationships among isolates. Isolates X. oryzae pv. oryzae 1/96pml and 61pml are closely related with isolates 29d, 59pml, and 60pml although they are isolated from different locations. The other closely related isolates were between X. oryzae pv. oryzae 5mgl with 23d, 38d, 10sbg, 8myd; while 6klt was close to 3ind and 2kr. The result of X. oryzae pv. oryzae genetic diversity can be used as a reference for strain or/isolates selection for development ofbacterial leaf blight resistance in Indonesia.

Keefektifan Bakteri Endofit dan Bakteri Perakaran Pemacu Pertumbuhan Tanaman dalam Menekan Penyakit Layu Bakteri pada Tomat Zhenita Vinda Tri Handini; Abdjad Asih Nawangsih
Jurnal Fitopatologi Indonesia Vol 10 No 2 (2014)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Bacterial wilt disease caused by Ralstonia solanacearum is an important disease on tomato. Endophytic bacteria and plant growth promoting rhizobacteria has been reported as potential biocontrol agent for many plant diseases. Research was conducted to determine the effectiveness of some isolates of endophytic bacteria (BC10, Bacillus amyloliquefaciens, dan Staphylococcus epidermidis BC4) and plant growth promoting rhizobacteria (Pseudomonas fluorescence RH4003, Bacillus subtilis AB89) as biocontrol agents for tomato wilt disease. Bacterial isolates was applied as soil drench on tomato seedling in single or combination treatments. Combination of P. fluorescens RH4003 and isolate BC10 (F1*BC10) enhanced the highest plant height, although plant dry mass among treatments was not significantly different. Single application of S. epidermidis BC4 was significantly suppressed disease incidence.

Efektivitas Isolat Bakteri dari Rizosfer dan Bahan Organik Terhadap Ralstonia solanacearum dan Fusarium oxysporum pada Tanaman Kentang Tutik Kuswinanti; Baharuddin Baharuddin; Sri Sukmawati
Jurnal Fitopatologi Indonesia Vol 10 No 2 (2014)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Rhizosphere is an ideal area for growth and development of microbial antagonists, because it is a nutrition rich area. Nutrients that secreted in the rhizosphere are influenced by many environmental factors which in turn effect the diversity and abundance of microbial community. Based on these facts, the research were aimed to isolate bacteria from the rhizosphere and organic materials in Tana Toraja, and determine their role as biological control agents for potato wilt disease. Antagonistic test was conducted in order to determine the ability of each bacterial isolate to inhibit the growth of Ralstonia solanacearum and Fusarium oxysporum. The results showed that from totally 74 bacterial isolates, only 10 and 4 bacterial isolates were able to inhibit the growth of R. solanacearum and F. oxysporum in vitro, respectively.

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