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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 9 No 2 (2013)" : 5 Documents clear

Laju Infeksi Ganoderma pada Empat Kelas Tekstur Tanah Agus Susanto; Agus Eko Prasetyo; Sri Wening
Jurnal Fitopatologi Indonesia Vol 9 No 2 (2013)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Basal stem rot disease caused by Ganoderma is the most destructive disease in oil palm plantation in Indonesia. Development of this disease is faster and heavier in nutrient poor soils, such as sandy soil. The objective of this research is to study and quantitatively measure the infection rate of Ganoderma disease in sandy soil. The treatments consisted of five different mixtures of mineral soil (M) and sand (P) i.e: A (100% M–0% P), B (75% M-25% P), C (50% M-50% P), D (25% M-75% P), and E (0% M-100% P). Physical, chemical, and biological properties of each soil mixture treatment were analyzed. Soil texture can be differentiated into sandy clay loam, sandy loam, loamy sand, sand for treatmen A, B, C, D, E, respectively. Sandy soil medium had less microorganism population (< 1 × 106 cfu g-1soil) than sandy clay loam which microrganism population was 3 × 106 cfu g-1 soil. The infection rate of Ganoderma in sandy soils was 1.77–1.83 palm per month per 100 palms. Infection rate of Ganoderma in sandy soil was faster and higher than those in loamy soilKey words: basal stem rot, oil plam, sandy soil

Deteksi dan Identifikasi Virus pada Umbi Bawang Merah Arif Kurniawan; Gede Suastika
Jurnal Fitopatologi Indonesia Vol 9 No 2 (2013)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Shallot is an important horticultural crop in Indonesia. One of it’s production constraint is viral disease. Dispersal of viruses on shallots may occurre through shallots bulb trading. However, there is not much information regarding viruses infecting shallot bulbs. Laboratory study was conducted to detect and identify viruses associated with shallot. Random sampling was done for several varieties of shallots (Jawa, Biru, Nganjuk, and Brebes varieties) collected from Bantul Districs. Virus detection and identification was based on RT-PCR using specific primer of OYDV, SYSV, SLV, and ShVX followed by sequencing of the nucleotides. RT-PCR was only successfully amplified Shallot yellow stripe virus (SYSV) with size ~749 bp, while other viruses were not detected. Disease incidence of SYSV on Java and Brebes varieties were 60% and 53.3% respectively. Nucleotide sequences of SYSV CP gene showed the highest homology to SYSV from China and South Korea.Key words: RT-PCR, sequencing nucleotides, Shallot yellow stripe virus

Potensi Minyak Atsiri untuk Mengendalikan Potyvirus pada Tanaman Nilam Maya Mariana; Rita Noveriza
Jurnal Fitopatologi Indonesia Vol 9 No 2 (2013)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

One of the problems in the cultivation of patchouli is a mosaic disease caused by viruses. The dominant virus causing mosaic disease on patchouli plant belongs to Potyvirus group. Mosaic disease has spread throughout the central patchouli production in Java and Sumatra which can lower the wet herb, dried herb, oil and patchouli alcohol levels. The active contain of essential oils are reported as anti virus such as β - caryphyllene, thymol, carvacrol, caryophyllene oxide, sabinene, linalool, linaly acetate, carvone and geraniol. The research aims to determine the potential and concentration of essential oils that can suppress Potyvirus. The research used essential oil from clove and citronella. Oil was sprayed onto the leaves surface and left for 24 hr, then sap from Potyvirus infected plant was mechanically inoculated. Citronella oil concentration of 1.2 % have less number of lesions compared to the other treatments on the third day after inoculation. The percentage inhibition of citronella oil to Potyvirus on 1.2 % concentration reached 89.78 %. This showed that citronella oil has potential to suppress the development of Potyvirus in patchouli plant.Key words: antiviral, citronella oil, clove, mosaic disease

Keefektifan Perlakuan Panas Kering dan Iradiasi UV-C untuk Mematikan Cendawan Model Microcyclus ulei Aprida Cristin; Meity Suradji Sinaga; Abdul Muin Adnan
Jurnal Fitopatologi Indonesia Vol 9 No 2 (2013)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

This study was carried out to develop treatment methods and determine the effective dose of dry heat treatment and UV-C irradiation to kill the fungus models of Microcyclus ulei on soybean grains and soybean meals without damaging its nutritional content. The fungus models used in this study were Colletotrichum gloeosporioides, Botryodiplodia theobromae, Fusarium oxysporum f. sp. niveum, and Sclerotium rolfsii. The results showed that UV-C treatment up to 12 and 24 hours exposure time at15 and 30 cm from UV-C light was not effective to kill all fungus models in PDA. Dry heat treatment at 55 °C for 30 and 60 minutes was effective to kill cultures of C. gloeosporioides, B. theobromae, and S. rolfsii in PDA, except for F. oxysporum f. sp. niveum. Further experiments on soybean showed that dry heat treatment at 55 °C for 30 minutes was effective to kill conidia of C. gloeosporioides, B. theobromae, and F. oxysporum f. sp. niveum, without damaging its protein content. However, dry heat treatment at 60 °C for 60 minutes has been proved not effective to kill sclerotia of S. rolfsii. If M. ulei had the similar resistance as S. rolfsii, then it would need a higher temperature and time than used in this study to kill the fungusKey words: Botryodiplodia theobromae, Colletotrichum gloeosporioides, effective doses, Fusarium oxysporum f. sp. niveum, Sclerotium rolfsii, soybean meals

Ketahanan Tiga Varietas Jahe terhadap Fusarium oxysporum f. sp. zingiberi in Vitro dan in Planta Dyah Pancasiwi; Soedarmono Soedarmono; Endang Mugiastuti; Loekas Soesanto
Jurnal Fitopatologi Indonesia Vol 9 No 2 (2013)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Fusarium oxysporum f. sp. zingiberi is the causal agent of dry rot on ginger and could highly effect ginger production. Resistant variety is one of disease control strategy that is recommended. Various ginger varieties are available but their response to F. oxysporum f. sp. zingiberi has not been reported. In this study three ginger varieties were evaluated for their resistence to F. oxysporum f. sp. zingiberi based on in vitro and in planta inoculalation method. Gadjah and Emprit varieties were considered moderately susceptible whereas Merah varieties was moderately resistance to F. oxysporum f. sp. zingiberi. pathogen will be indicated.Key words: dry rot disease, ginger var. Merah, resistant variety, resistance

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