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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 8 No 6 (2012)" : 5 Documents clear

Lima Ekstrak Tumbuhan untuk Menekan Infeksi Bean common mosaic virus pada Tanaman Kacang Panjang Lulu Kurnianingsih; Tri Asmira Damayanti
Jurnal Fitopatologi Indonesia Vol 8 No 6 (2012)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Bean common mosaic virus (BCMV) is one of major virus infecting legumes and is difficult to manage. Utilization of plant extracts as systemic resistance inducer against virus is needed to study. The aim of the research is to evaluate the potency of five leaf extracts, i.e. from pagoda flower, spiny amaranth, four o’clock flower, Chenopodium amaranticolor, and herba andrographitis against BCMV. The effectiveness of leaf extracts were tested by spraying yard long bean leaves. Plants treated by spine spinach shown varied symptoms, while other treatments showed mild mosaic up to symptomless. The highest to lowest of disease incidence was showed by crude leaf extract of spine spinach (70%), four o’clock (10%), herba andrographitis (10%), while C. amaranticolor and pagoda are still uninfected. These results had positive correlation to disease severity and virus inhibition. Four of five tested leaf extracts, except spine spinach, showed their potency as systemic resistance inducer against BCMV. Key words: BCMV, plant extract, yard long bean

Pemanfaatan Mulsa Jerami dan Plant Growth Promoting Rhizobacteria untuk Menekan Penyakit Pustul Bakteri pada Tanaman Kedelai Tita Widjayanti; Abdjad Asih Nawangsih; Kikin Hamzah Mutaqin
Jurnal Fitopatologi Indonesia Vol 8 No 6 (2012)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Bacterial pustule caused by Xanthomonas axonopodis pv. glycines is one of important bacterial diseases of soybean in Indonesia. The development of alternative control of the disease is required to support integrated diseases management for sustainable agriculture. This research was conducted to observe the effect of straw mulch and plant growth promoting Rhizobacteria (PGPR) on the incidence of bacterial pustule disease on two soybean varieties in the farmer field at Cigombong, Sukabumi, West Java. The result of this research showed that all of the factors as combinations did not significantly affect the value of total area under disease progress curve (AUDPC) of bacterial pustule. Factor that significantly affected the values of AUDPC was soybean varieties. Gepak Kuning variety has lowest AUDPC value compared to Anjasmoro variety. In addition, combination of Gepak Kuning variety and straw mulch showed significantly different effect on AUDPC value. Therefore, this treatment combination should be recommended for the farmers.Key word: PGPR, soybean variety, straw mulch, Xanthomonas axonopodis pv. glycines

Keagresifan Beberapa Isolat Fusarium oxysporum f. sp. zingiberi Asal Temanggung dan Boyolali Setelah Penyimpanan dalam Tanah Steril Henky Setyawan Norandika Wahyu; Loekas Soesanto; Kustantinah Kustantinah
Jurnal Fitopatologi Indonesia Vol 8 No 6 (2012)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Preservation of fungi isolates is needed for further research but usually the preservation treatment is only concerned on life span and growth of the fungi. This research aimed at knowing life span and aggressivity of Fusarium oxysporum f. sp. zingiberi isolates from ginger cv. Gajah after preserving for three years in sterile soil. Completely Randomized Design and Randomized Block Design were used for in vitro and in planta test, respectively, with 10 isolates of F. oxysporum f. sp. zingiberi from Temanggung, 8 isolates of F. oxysporum f. sp. zingiberi from Boyolali, and 1 control, each repeated three times. Variables observed were incubation period, infected area, disease intensity, rhizome wet weight, number of leaves, and crop height. Result of the research showed that all isolates of F. oxysporum f. sp. zingiberi could still grew well. Based on origin of the isolates, the highest aggressivity on ginger rhizome was TKO3 from Temanggung and BAO6 from Boyolali with infected area of 67.67 mm2 and 56.67 mm2, respectively. On ginger crop, the highest aggressivity was BAO1 from Boyolali and TPO2 from Temanggung with disease intensity of 68.09% and 38.13%, respectively. All isolates of F. oxysporum f. sp. zingiberi did not cause significantly different effect on incubation period, disease intensity, crop height, leaves total, and rhizome wet weight but they caused significantly different effect on infected area. Key word: aggressivity, Fusarium oxysporum, ginger, preservation, steril soil

Etil Format sebagai Perlakuan Alternatif terhadap Colletotrichum gloeosporioides pada Stroberi Ade Syahputra; Nurul Dwi Handayani; Indriani Kusumawati Daud Malvini
Jurnal Fitopatologi Indonesia Vol 8 No 6 (2012)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Ethyl formate (EtF) is alternative fumigant to substitute methyl bromide. The objective of the current study was to obtain an effective dose and exposure time of Etf treatment against Colletotrichum gloeosporioides in strawberry. In vitro test was conducted on colonies of C. gloeosporioides grew on PDA in petri dishes. The fungus was fumigated with Etf at various dose (0, 140, 190, 240, and 290 g m-3) and at various exposure time (1, 2, 3, and 4 hours), in 5 L plastic bags. On in vivo test, agar plugs of C. gloeosporioides (diameter 0,3 mm) were inoculated on to wounded strawberries, and the inoculated strawberries were then fumigated with Etf at similar dose and exposure time treatments. Each test was conducted in four replicates. Fumigation with Etf at 190 g m-3 significantly reduced the growth of C. gloeosporioides on agar, but did not reduce the colonization of the pathogen on strawberries. Ethyl formate did not affect visual quality of strawberries, but damaged the calyx at 190 g m-3. Other fungi, namely Colletotrichum sp. and Botrytis sp., were found on fumigated and nonfumigated strawberries. Key words: Colletotrichum gloeosporioides, ethyl formate, strawberries

Infeksi Papaya ringspot virus pada Tanaman Pepaya di Provinsi Nanggroe Aceh Darussalam Sri Hendrastuti Hidayat; Sari Nurulita; Suryo Wiyono
Jurnal Fitopatologi Indonesia Vol 8 No 6 (2012)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Severe mosaic symptoms was observed on papaya plants in Meusa village, Kutablang sub district, Bireun district and Lambaro Teunom village, Lembah Seulawah sub district, Aceh Besar district. Systemic mosaic was found in leaves, stem, twig, and fruit. Reverse transcription-polymerase chain reaction (RT-PCR) was conducted to detect the virus causing mosaic symptoms using universal primer for Potyvirus. Amplification of 320 bp DNA fragment was successfully obtained from leaves and fruits bearing severe mosaic symptoms. Nucleotide sequencing was proceeded using the DNA amplicon as the template. Further sequence analysis indicated that Potyvirus isolates from papaya in Aceh show the highest homology (92.7% to 94.7%) with Papaya ringspot virus (PRSV) from Philippines, Thailand, and Indonesia. This is the first report on PRSV infection on papaya in Nanggroe Aceh Darussalam province. Key words: Potyvirus, RT-PCR, sequencing

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