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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 15 No 6 (2019)" : 5 Documents clear

Pengaruh Ekstrak Daun Sirih dan Metode Ekstraksinya Dalam Menghambat Penyakit Antraknosa pada Cabai Pascapanen Desi Trisnawati; Lilik Pujantoro Eko Nugroho; Efi Toding Tondok
Jurnal Fitopatologi Indonesia Vol 15 No 6 (2019)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Extract of Piper betle as An Inhibitor of Anthracnose Postharvest Disease on Chili Pepper Chili is a horticultural commodity that mostly needed by consumers in the fresh condition. However, there is an interval of time needed to deliver it from producers (farmers) to consumers. During the supply chain, deterioration of the quality of chilli fruit can occur by the presence of anthracnose disease caused by Colletotrichum spp. The use of syntetic fungicides to control anthracnose disease is not recommended because it will leave residues that are harmful to consumers. The alternative that can be done is to use botanical pesticides as fungicides. The aim of this research is to study the potential of Piper betle leaves extract (PLE) in inhibiting the development of the antracnose disease caused by Colletotrichum acutatum on the chili during storage. The sequences of this research were strarted with production of PLE by boiling method which was preceded by blanching, chopping, and without treatment of betel leaves, then bioassay of betel extract by measuring the diameter of fungus growth on PDA+ PLE. The third test was application of PLE on fresh chili fruits by spraying and soaking, continued by observed the antracnoseinsidence on chili during storage time (21 days). The results showed that the chopping method was the best betel leaf extraction method among other treatments, the use of 10% PLE concentration was the most effective concentration in inhibiting the growth of C. acutatum in vitro, spraying treatment using 10% EDS was the most effective in inhibited the insidence of anthracnose disease.

Faktor Lingkungan dan Teknik Budi daya terhadap Epidemi Penyakit Mati Meranggas pada Pohon Pala di Aceh Selatan Susanna Susanna
Jurnal Fitopatologi Indonesia Vol 15 No 6 (2019)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Environmental factors and cultivation techniques are important in the development of plant diseases. These factors become the bases in determining disease control strategies. Therefore, an analysis of these factors is required especially for new reported diseases. This study aimed to identify environmental factors and cultivation techniques for the epidemic of dieback disease of nutmeg in South Aceh. Field observation to assess disease incidence were carried out in 36 plantations in 6 sub districts in South Aceh as nutmeg central production areas, i.e. Labuhan Haji, Meukek, Sawang, Samadua, Tapak Tuan, and Raja Raja. In addition, data collection was carried out on crop management and field condition. Environmental data related to weather conditions were obtained from the local meteorology and climatology agency. Based on field observation, the highest disease incidence was observed on old trees (above 50 years), with a monoculture planting system and without weed control practices. Environmental factors that triggered dieback disease in South Aceh involved decreasing rain fall and rainy days, and topography variation.

Potensi Kolonisasi Mikoriza Arbuskular dan Cendawan Endofit dan Kemampuannya dalam Pengendalian Layu Fusarium pada Bawang Merah Mei Lita Fitriani; Suryo Wiyono; Meity Suradji Sinaga
Jurnal Fitopatologi Indonesia Vol 15 No 6 (2019)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Layu Fusarium merupakan penyakit penting pada bawang merah (Allium cepa var. aggregatum) yang disebabkan oleh Fusarium oxysporum f.sp. cepae. Pada penelitian ini, isolat biokontrol potensial cendawan endofit dan mikoriza diuji kemampuan kolonisasinya secara tunggal dan kombinasi untuk menekan perkembangan penyakit layu Fusarium. Percobaan dilakukan menggunakan rancangan acak lengkap dengan 8 perlakuan dan 5 ulangan. Kemampuan menekan patogen diamati dari persentase kolonisasi agens biokontrol, periode laten penyakit, insidensi penyakit, laju infeksi, dan area under the disease progress curve (AUDPC). Agens biokontrol yang diujikan berhasil bersimbiosis dengan akar tanaman bawang merah. Aplikasi tunggal mikoriza arbuskular paling baik dalam memengaruhi pertumbuhan tanaman dan menekan perkembangan penyakit layu fusarium pada bawang merah dengan periode laten penyakit terpanjang 21 hari dan menurunkan insidensi penyakit hingga 40%.

Infeksi Alami Pepper Yellow Leaf Curl Virus dan Sweet potato virus C Pada Ubi Jalar di Malang, Jawa Timur Tri Asmira Damayanti; Anastasya Hondo; Yusmani Prayogo
Jurnal Fitopatologi Indonesia Vol 15 No 6 (2019)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Virus-like infection with vein yellowing and leaf malformation symptoms were observed on sweet potato IR Melati at Kendalpayak, Malang, East Java. Amplification of DNA/cDNA was carried out using universal primer of Begomovirus, Potyvirus and Cucumovirus showed successfully amplified by universal primer of Begomovirus and Potyvirus, while negatively to universal primer of Cucumovirus. Based on nucleotide sequences, the vein yellowing and leaf malformation symptoms on sweet potato caused by double infection of Pepper yellow leaf curl virus (PYLCV) and Sweet potato virus C (SPVC). DNA identity analysis using BioEdit software showed highest homology up to 98.5% to one of PYLCV isolates from Bali, and up to 98.0% to sweet potato isolate of SPVC from Japan and USA. This is a new finding of natural infection of PYLCV and SPVC on sweet potato in Indonesia.

Bakteri Endofit dari Tumbuhan Paku-pakuan sebagai Agens Hayati Rhizoctonia solani dan Pemacu Pertumbuhan Tanaman Padi Prayogo Probo Asmoro; abdul munif
Jurnal Fitopatologi Indonesia Vol 15 No 6 (2019)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Rhizoctonia solani merupakan salah satu patogen penting penyebab penyakit hawar seludang pada tanaman padi. Patogen ini termasuk yang sulit dikendalikan karena bersifat kosmopolit, mampu bertahan di dalam tanah, dan memiliki kisaran inang yang banyak. Pengendalian secara biologi dengan bakteri endofit merupakan salah satu alternatif yang potensial karena kemampuannya hidup di dalam jaringan tanaman tanpa menimbulkan gejala penyakit dan dapat meningkatkan pertumbuhan serta ketahanan tanaman. Tujuan penelitian ini ialah mengeksplorasi bakteri endofit dari bagian batang akar dari tiga jenis tumbuhan paku yang berbeda, yaitu Salvinia molesta (paku air), Pteris ensiformis (paku terestrial), dan Drymoglossum pilosolloides (paku epifit) dan mengevaluasi potensinya sebagai agens hayati R. solani dan pemacu pertumbuhan tanaman. Isolasi bakteri dilakukan pada medium tripsic soy agar (TSA) dan nutrient agar (NA). Isolat bakteri dimurnikan dan diuji keamanan hayati dengan uji hipersensitifitas dan hemolisis. Hasil penelitian diperoleh 178 isolat bakteri endofit dan sebanyak 88 isolat menunjukkan reaksi negatif pada uji hipersensitisfitas dan uji hemolisis. Selanjutnya, isolat tersebut diuji dual test secara in vitro terhadap R. solani dan didapatkan 4 isolat bakteri endofit (APE15, APE22, APE33, dan APE35) dengan daya hambat dari 27–76% pada medium TSA, agar-agar dekstrosa kentang (ADK), dan TSA + ADK. Hasil uji pertumbuhan empat isolat terhadap benih padi varietas Situ Bagendit menunjukkan bahwa bakteri endofit mampu meningkatkan persentase perkecambahan padi 4.9% – 48.8%, meningkat panjang akar padi 68.3%–95.4%, panjang pucuk 53.2%–87.3%, bobot segar 49.07%–90.65%, dan bobot kering 48.1%–87.3%. Hasil ini menunjukkan bahwa tumbuhan paku mengandung beberapa bakteri endofit yang dapat dikulturkan dan memiliki senyawa antimikrob yang efektif, serta dapat digunakan sebagai sumber agens hayati terhadap patogen R. solani dan pemacu pertumbuhan tanaman.

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Journal Mail Official
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Jawa barat

INDONESIA