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INDONESIA
Jurnal Fitopatologi Indonesia
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 6 Documents
 1 
Search results for , issue "Vol 16 No 4 (2020)" : 6 Documents clear
Meristem Culture Method for Virus Elimination from Shallot Bulb Prabawati Hyunita Putri; Diny Dinarti; Sri Hendrastuti Hidayat
Jurnal Fitopatologi Indonesia Vol 16 No 4 (2020)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.16.4.185-189

Abstract

Meristem Culture Method for Virus Elimination from Shallot Bulb Shallot farmers in Indonesia have commonly grown bulbs from the previous planting season as seed sources for the next season. This may cause the accumulation of viruses in bulbs which in turn lowering plant productivity. A research was conducted to optimize the meristem culture method combined with thermotherapy (30 ºC) to produce virus-free shallot bulbs. Shallot bulbs of cv. Bima Curut that had been confirmed infected by Potyvirus and Carlavirus were used as explant sources. Bulb sterilization was carried out using bactericides, fungicides, and sodium hypochlorite. Meristem shoots of 0.6 to 0.7 mm in size were isolated from bulbs and plant successively in the shoot, root, and bulb induction medium to form mini bulbs. The mini bulbs were then planted in the screen house for 2 to 2.5 months until micro bulbs were formed. Virus detection by reverse transcription-polymerase chain reaction method confirmed that plantlets at the multiplication stage and plants in the screen house were free of Potyvirus and Carlavirus infestations. This study showed that the meristem culture method combined with thermotherapy is a potential approach for producing virus-free shallot bulbs.
Diagnosis of Corm Rot Disease of Taro: Case Study at Maybrat - West Papua Paulus Woyen; Meity Suradji Sinaga; Efi Toding Tondok; Bonny Poernomo Wahyu Soekarno
Jurnal Fitopatologi Indonesia Vol 16 No 4 (2020)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.16.4.177-184

Abstract

Diagnosis of Corm Rot Disease of Taro: Case Study at Maybrat - West Papua Taro (Colocasia esculenta L. Schott) is a herbaceous plant that has been used as food crop in some countries. It is believed that taro has originated from Southeast Asia (Lebot et al. 2010). In Maybrat, West Papua taro was used as a primary important staple food crop for ages by local tribes, and it is called Awiah or Wiah in this area. Until 2013, there is no proper pests and diseases problem reported in this area, but, in the middle of 2013 the local farmers reported an epidemic of corm rot disease on their taro crops. The aim of this study was to identify the causal agent of corm rot disease of taro in Maybrat. For disease diagnosis, pathogen isolation was carried out on samples of rotted corm collected from local farmers in Maybrat and followed by Koch Postulate. The assay was carried out in vivo and in planta to identify the corm rot pathogen. Out of 38 fungi isolated from the diseased corms, 50% of these were pathogenic. Three isolates called Y1, YP1, and S4 were able to cause corm rotting in vivo and root damage in planta. In planta assay showed that, combination of these isolates could cause severely root damage. Morphologically, isolate YP1 and S4 were identified as Fusarium oxysporum, while isolate Y1 was comfirmed genetically as F. solani. This is the first report of taro corm rot disease from Maybrat, West Papua.
Identification of Phytoplasmas on Carrot (Daucus carota L.) and Leafhopper Associated with Yellow Disease in Bogor and Bandung, West Java Isti Wulandari; Kikin Hamzah Mutaqin; Giyanto Giyanto; Sri Hendrastuti Hidayat
Jurnal Fitopatologi Indonesia Vol 16 No 4 (2020)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.16.4.157-165

Abstract

Gejala kuning mirip seperti infeksi fitoplasma ditemukan pada pertanaman wortel di Jawa Barat. Penelitian bertujuan mengidentifikasi fitoplasma pada tanaman wortel dan serangga wereng yang berasosiasi dengan gejala kuning di Bogor dan Bandung. Wereng yang ditemukan pada pertanaman wortel di Bogor terdiri atas 5 spesies wereng daun (Hemiptera: Cicadellidae), yaitu Balclutha incisa (Matsumura), Orosius argentatus (Evans), Cicadulina bipunctata (Matsumura), Empoascanara indica (Datta), Exitianus indicus (Distant), dan 1 spesies wereng batang (Hemiptera: Delphacidae), yaitu Sogatella furcifera (Horváth). Deteksi fitoplasma pada tanaman dan wereng dilakukan dengan nested-PCR, sikuensing, dan analisis DNA sikuen. Nested-PCR berhasil mengamplifikasi DNA target, yaitu gen 16S rRNA fitoplasma dari tanaman dan wereng. Analisis identitas matriks sikuen fitoplasma asal tanaman wortel di Bogor menunjukkan homologi tertinggi dengan fitoplasma dari grup 16SrII, yaitu Peanut witches’-broom phytoplasma; sedangkan sampel asal Bandung menunjukkan homologi tertinggi dengan fitoplasma dari grup 16SrI, yaitu Ca. Phytoplasma asteris dan Tomato big bud phytoplasma. Analisis identitas matriks sikuen fitoplasma asal wereng di Bogor (B. incisa, S. furcifera) menunjukkan homologi tertinggi dengan fitoplasma dari grup 16SrII, yaitu Cactus witches’-broom phytoplasma; sedangkan fitoplasma asal C. bipunctata dari Bogor menunjukkan homologi tertinggi dengan fitoplasma grup 16SrI, yaitu Ca. Phytoplasma asteris. Tulisan ini merupakan laporan pertama fitoplasma yang menginfeksi tanaman wortel di Bogor dan Bandung.
Identification of Important Fungal Diseases of Strawberry in Purbalingga Regency, Central Java, Indonesia Didit Setiyawan; Sedyo Hartono; Ani Widiastuti
Jurnal Fitopatologi Indonesia Vol 16 No 4 (2020)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.16.4.145-156

Abstract

Salah satu kendala utama dalam budi daya tanaman stroberi di Indonesia adalah banyaknya penyakit tanaman. Penelitian ini merupakan lanjutan dari laporan tentang penyakit penting pada buah stroberi (Fragaria ananassa) di Kabupaten Purbalingga, Jawa Tengah untuk mengidentifikasi penyakit oleh cendawan pada bagian tanaman selain buah. Sampel berupa daun atau tanaman bergejala, diidentifikasi secara morfologi atau molekuler apabila identifikasi morfologi tidak memungkinkan. Konfirmasi gejala penyakit yang disebabkan oleh cendawan dilakukan dengan mengikuti postulat Koch, yaitu menginokulasikan cendawan patogen hasil isolasi pada tanaman stroberi sehat. Hasil penelitian menunjukkan bahwa penyakit penting yang disebabkan oleh cendawan pada tanaman stroberi adalah penyakit hawar daun yang disebabkan oleh Phomopsis sp. dan Pestalotia sp.; penyakit gosong daun yang disebabkan oleh Curvularia sp. dan Diplocarpon sp.; penyakit bercak daun yang disebabkan oleh Cercospora sp., Phoma sp., dan Gnomonia sp.; serta penyakit layu yang disebabkan oleh Verticillium sp. dan Fusarium sp. Selain laporan tentang penyakit penting tanaman stroberi, ini juga merupakan laporan pertama tentang penyakit bercak Gnomonia pada tanaman stroberi di Indonesia.
Effectiveness of Endophytic Bacteria and Arbuscular Mycorrhizal Fungi in Suppressing Ralstonia solanacearum in Eucalyptus pellita Plants Yuliana Susanti; Giyanto Giyanto; Meity Suradji Sinaga; Kikin Hamzah Mutaqin; Budi Tjahjono
Jurnal Fitopatologi Indonesia Vol 16 No 4 (2020)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.16.4.166-176

Abstract

Penyakit layu bakteri yang disebabkan oleh Ralstonia solanacearum merupakan salah satu penyakit penting pada tanaman eukaliptus (Eucalyptus pellita) di Indonesia. Salah satu pendekatan teknik pengendalian adalah melalui pemanfaatan bakteri endofit dan fungi mikoriza arbuskula (FMA). Penelitian ini ditujukan untuk mengevaluasi keefektifan bakteri endofit dan FMA dalam menekan perkembangan penyakit layu bakteri. Terdapat sepuluh kombinasi bakteri endofit dan FMA yang di-ujikan pada bibit eukaliptus berumur satu bulan. Inokulasi R. solanacearum secara buatan dilakukan tiga bulan setelah introduksi bakteri endofit dan FMA. Percobaan dilakukan di ruang growth chamber. Peubah pengamatan meliputi periode inkubasi, insidensi penyakit, laju penyakit, agresivitas kolonisasi bakteri dengan mengamati cairan bakteri (ooze) R. solanacearum pada bibit eukaliptus, pengukuran aktivitas phenylalanine ammonia lyase (PAL), dan total fenol. Hasil penelitian menunjukkan bahwa perlakuan B5F1 (Paenibacillus polymyxa dan Glomus mosseae) memiliki kemampuan penekanan tertinggi terhadap perkembangan penyakit layu bakteri pada bibit eukaliptus, yaitu sebesar 100%. Perlakuan B5F1 menunjukkan periode inkubasi R. solanacearum lebih lama, persentase insidensi penyakit paling rendah, laju infeksi penyakit rendah, dan penghambatan agresivitas kolonisasi R. solanacearum pada eukaliptus. Sementara perlakuan B4F1 (Serratia marcescens dan G. mosseae) mampu meningkatkan aktivitas PAL dan total fenol tertinggi dibandingkan perlakuan lainnya. Berdasarkan hasil penelitian ini, perlakuan B5F1 dan B4F1 berpotensi mengendalikan penyakit layu bakteri pada tanaman eukaliptus.
Cover Jurnal Fitopatologi Vol. 16 No. 4, Juli 2022 Editors
Jurnal Fitopatologi Indonesia Vol 16 No 4 (2020)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.16.4.i

Abstract

This editorial contains the front cover, editorial page, and back cover of the Jurnal Fitopatologi Indonesia Vol. 16 No. 4, Juli 2020

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