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All Journal Jurnal Fitopatologi Indonesia
Suprihanto Suprihanto
Balai Besar Penelitian Tanaman Padi
Medicine & Pharmacology

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Virulensi Isolat Rice tungro virus dari Beberapa Daerah Endemis Tungro di Indonesia Suprihanto Suprihanto; Endang Nurhayati; Jumanto Harjosudarmo
Jurnal Fitopatologi Indonesia Vol 9 No 1 (2013)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (595.615 KB) | DOI: 10.14692/jfi.9.1.29

Abstract

The research was conducted to distinguish the virulence of Rice tungro virus (RTV) isolates from several tungro disease endemic areas in Indonesia based on their response in differential cultivars of rice. Eight isolates of RTV were collected from several tungro endemic regions in Indonesia i.e. Bali (Denpasar), South Kalimantan (Tanah Laut), South Sulawesi (Lanrang), West Java (Subang and Bogor), Central Java (Solo), East Java (Jember), and West Nusa Tenggara (Mataram). The isolates were maintained on TN1 rice cultivar in greenhouse by successive transfers via Nephotettix virescens. Each isolate was subsequently passed on to FK135 and TN1 rice cultivars. Four week after inoculation, plants responses were observed to compare their symptom and infectivity on the differential cultivars. The results showed that the level of virulence of RTV isolate from tungro disease endemic areas in Indonesia can be classified into 3 levels. The highest virulence were RTV isolates from West Jawa, the moderate level of virulence were RTV isolates from East Java, South Kalimantan, South Sulawesi, and West Nusa Tenggara, the low level of virulence were RTV isolates from Bali and Central Java.Key words: differential cultivar, Nephotettix virescens, rice, tungro diseases
Resistance of Rice Varieties and Accessions to Dwarf Viruses Celvia Roza; Suprihanto Suprihanto; Dede Kusdiaman; I Nyoman Widiarta; Bambang Nuryanto; Oco Rumasa
Jurnal Fitopatologi Indonesia Vol 17 No 3 (2021)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.17.3.92-102

Abstract

Identifikasi ketahanan plasma nutfah padi terhadap virus kerdil bertujuan untuk mendapatkan informasi mengenai varietas dan aksesi yang tahan terhadap virus kerdil padi, yaitu Rice ragged stunt virus (RRSV) dan Rice grassy stunt virus (RGSV). Penelitian dilakukan di Rumah Kaca Balai Besar Penelitian Tanaman Padi pada MT1/MT2 tahun 2018. Materi genetik yang diuji yaitu 19 varietas padi yang sudah dilepas dan 50 aksesi plasma nutfah padi koleksi Balai Besar Penelitian Tanaman Padi Badan Litbang Pertanian-Kementerian Pertanian. Pengamatan mengikuti metode skoring SES IRRI 2014. Respons tanaman uji terhadap RRSV dapat dikelompokkan menjadi rentan (1 varietas dan 22 aksesi), agak tahan (18 varietas dan 22 aksesi), dan tahan {2 aksesi, yaitu MDK Karawang (800 butir/Malai) (10597), dan Pulo Hitam (10615}. Respons tanaman uji terhadap RGSV dapat dikelompokkan menjadi rentan (16 varietas dan 34 aksesi), agak tahan (3 varietas dan 11 aksesi), dan tahan (1 aksesi, yaitu Ketik 1-1062). Lebih lanjut, aksesi padi yang tahan terhadap RRSV dan/atau RGSV dapat digunakan sebagai tetua dalam perakitan varietas yang tahan terhadap virus kerdil.
Co-Authors Bambang Nuryanto Celvia Roza Dede Kusdiaman Endang Nurhayati I Nyoman Widiarta Jumanto Harjosudarmo Oco Rumasa