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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).

Arjuna Subject : -

Articles 5 Documents

Search results for , issue "Vol 12 No 2 (2016)" : 5 Documents clear

Ketahanan Sepuluh Genotipe Kedelai terhadap Penyakit Karat Sumartini Sumartini; Apri Sulistyo
Jurnal Fitopatologi Indonesia Vol 12 No 2 (2016)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Rust disease caused by Phakopsora pachyrhizi can reduce soybean yields up to 75%. One solution to overcome the rust disease is by planting resistant varieties. The aim of this study was to evaluate the resistance of 10 soybean genotypes to rust disease. The research was conducted in the greenhouse. The experiment was arranged in a randomized completely block design with three replications. Inoculation of rust pathogen on 3 weeks-old plants was done by spraying urediniospore suspension (density 104 mL-1) to the surface of the leaves on the 10 soybean genotypes (MLGG 0005, MLGG 0253, MLGG 0465, MLGG 0470, var. Argomulyo, var. Tanggamus, var. Wilis, var. Burangrang, var. Grobogan, dan var. Dering 1). The results showed that all soybean genotypes were classified as moderately resistant to rust diseases based on the method of IWGSR. Although the plants were infected by rust disease, var. Wilis and Dering 1 produced the highest seed yield per plant (7.15 and 5.21 g, respectively), due to the good appearance of the plants, and the high number of branches, reproductive nodes, and number of filled pods. Therefore, these genotypes might be used as a good germplasm accession.

Keefektifan Formula Pseudomonas fluorescens Untuk Mengendalikan Penyakit Layu Bakteri dan Meningkatkan Pertumbuhan Tanaman Nilam Nasrun Nasrun; Nurmansyah Nurmansyah
Jurnal Fitopatologi Indonesia Vol 12 No 2 (2016)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Bacterial wilt disease (Rasltonia solanacearum) is an important constraint for patchouli plant. Formulated Pseudomonas fluorescens Pf19 could induce patchouli plant resistance against R. solanacearum. The aims of the present study were to find the optimal dose and application interval of formulated P. fluorescens Pf19 in order to control R. solanacearum effectively and efficiently, as well as promoting the growth and productivity of the patchouli plant. The results of effectivity test of doses (75 g L-1 and 100 g L-1) and application time intervals (every 30; 60; 90 and 120 days) showed that formulation of P. fluorescens Pf19 controlled bacterial wilt disease and increased patchouli plant growth and production on patchouli plant in field. Doses of 100 g L-1 and application time of every 30 and 60 days had highest activity and effectivity to control bacterial wilt diseases and increase plant growth and production of patchouli plant. Incubation period was 88.0–93.5 days after planting, and disease intensity was 16.50–24.12%. The same treatments may increase the growth of patchouli plant, i.e. plant height were 59.0–68.5 cm, total number of leaves were 417.5–510.0 leaves per plant, wet weight of leaves were 234.55–263.45 g per plot and dry weight of leaves were 25.32–29.28 g per plot.

Metabolit Cendawan Endofit Tanaman Padi sebagai Alternatif Pengendalian Cendawan Patogen Terbawa Benih Padi Arifda Ayu Swastini Waruwu; Bonny Poernomo Wahyu Soekarno; Abdul Munif
Jurnal Fitopatologi Indonesia Vol 12 No 2 (2016)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Infection of seed-borne fungi on rice (Oryza sativa) may affect rice production and becomes an important problem in Indonesia recently. This study aimed to evaluate the potential of fungal endophyte metabolites isolated from rice (Oryza sativa L.) to control seed-borne pathogenic fungi. Research activities involved isolation of endophytic fungi from rice, isolation of seed-borne fungi, and inhibition test of isolated endophytic fungal metabolites on seed-borne pathogenic fungi. The results showed that 3 isolates of endophytic fungi, i.e. LA6, LA11, and LA14 were potential producing antifungal metabolite. The metabolites of LA11 and LA14 isolates was able to reduce the growth of seed-borne pathogenic fungi between 18.33 and 47.28%.

Potensi Ochrobactrum intermedium - C939A31, Klebsiella oxytoca - C939A32, Bacillus subtilis- I308A32 Asal Tanaman Kopi untuk Mengendalikan Nematoda Luka Akar Pratylenchus coffeae Dwi Halimah; Abdul Munif; Giyanto Giyanto
Jurnal Fitopatologi Indonesia Vol 12 No 2 (2016)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Infection of root lession nematode, Pratylenchus coffeae, becomes an important factor causing yield loss in coffee production in Indonesia. Biological control of P. coffeae needs to be developed to meet the requirement of environmentally save crop production. The research was conducted to evaluate 3 selected endophytic bacteria isolates, Ochrobactrum intermedium DSQ5, Klebsiella oxytoca NGB-FR 50, and Bacillus subtilis AIMST 10.T18.1, from coffee in controlling P. coffeae. Research methods involved pathogenicity test based on hypersensitive reaction and haemolysis test, and evaluation of their ability to suppress P. coffeae in vitro and in planta. The hypersensitive and haemolysis reactions indicated that these 3 isolates showed negative result both to plant and human. In vitro assays showed that two isolates, K. oxytoca - C939A32 and O. intermedium - C939A3, could suppress P. coffeae populations by 66.7% and 100%. Those results correlated positively with in planta assay’s result.

Identifikasi Molekuler Tobacco mosaic virus pada Anggrek di Sleman, Yogyakarta Soesamto Somowiyarjo; Sedyo Hartono; Sri Sulandari; Sekar Utami Putri
Jurnal Fitopatologi Indonesia Vol 12 No 2 (2016)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Tobamovirus is a group of virus with a wide host range, including orchid plant which considered as an economically important plant. This research aimed to identify Tobamovirus infecting orchids. Virus isolates were collected from orchid nursery in Sleman, Yogyakarta. Plant extract from orchid showing necrotic flex symptom was inoculated to indicator plants Chenopodium amaranticolor. Chlorotic local lesion symptoms occurred within 3 days after inoculation. RNA total from symptomatic C. amaranticolor was extracted by using a commercial kit. cDNA was synthesized using oligo d(T) primer. Amplification of cDNA using partial movement protein specific primers TMV-1F and TMV-2R was successfully amplified the amplicon with size ± 422 bp. The nucleotide sequences of this amplicon showed highest DNA homology (98%) with Tobacco mosaic virus Yongren-2 isolat from China.

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Jawa barat

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