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All Journal Jurnal Media Pertanian
Ani Ardiana Susanti
Balai Karantina Pertanian Kelas I Jambi
Agriculture, Biological Sciences & Forestry Languange, Linguistic, Communication & Media

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RESPON BEBERAPA VARIETAS UNGGUL KEDELAI DAN KEDELAI IMPOR TERHADAP Peronospora manshurica PENYEBAB PENYAKIT BULAI (Downy mildew) Ani Ardiana Susanti; Husda Marwan; Mapegau Mapegau; Marlina Marlina
Jurnal Media Pertanian Vol 5, No 2 (2020): Oktober
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v5i2.97

Abstract

Keberadaan penyakit bulai (Downy mildew) pada kedelai yang disebabkan oleh cendawan Peronospora manshurica di Indonesia masih terbatas. Tetapi di negara-negara penghasil kedelai seperti Brazil, Amerika, dan China penyakit ini berstatus penting menyebabkan kerusakan sebesar 8 – 14 %. Penelitian ini bertujuan untuk mengetahui respon tiga varietas unggul kedelai dan kedelai impor asal Malaysia terhadap Peronospora manshurica Percobaan dirancang menurut Rancangan Acak Lengkap (RAL) dengan 4 ulangan. Varietas unggul kedelai yang diuji adalah Anjasmoro, Grobokan, Wilis, dan Kedelai Impor. Peubah yang diamati meliputi : waktu munculnya daun trifoliate, tinggi tanaman, dan luas daun.Hasil penelitian menunjukkan bahwa ketiga varietas kedelai dan Kedelai Impor yang diuji menunjukkan perbedaan dalam merespon cendawan patogen Peronospora manshurica penyebab penyakit bulai pada kedelai. Varietas Anjasmoro, Grobogan, dan Kedelai Impor merespon dengan laju pertambahan tinggi tanaman yang lebih cepat tetapi dengan laju pertambahan luas daun yang lambat. Sedangkan varietas Wilis merespon Peronospora manshurica  dengan laju pertambahan tinggi tanaman yang lambat tetapi dengan laju pertambahan luas daun lebih cepat. Daun trifoliat pertama 100% muncul pada umur 7 hari sesudah tanam kecuali pada varietas Grobogan baru muncul 80% .Kata kunci: Kedelai, bulai, Peronospora manshurica
Uji Patogenesitas Oospora Peronospora manshurica Asal Kedelai Impor pada Tiga Kultivar Kedelai Ani Ardiana Susanti; Marlina Marlina; Husda Marwan; Mapegau Mapegau
Jurnal Media Pertanian Vol 6, No 1 (2021): April
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v6i1.112

Abstract

Downy mildew in soybean plants is caused by the fungus Peronosporamanshurica. This fungus is an obligate parasite and its existence in Indonesia is still limited. This study aims to determine the pathogenicity of the fungus P. manshurica carried on imported seeds of soybeans from Malaysia. The Oospora from imported soybean seeds from the Class I Agricultural Quarantine Center was tested for its pathogenicity on soybean cultivars Anjasmoro, Grobogan, and Wilis in the greenhouses of the Jambi Class I Agricultural Quarantine Center. This test used a completely randomized design (CRD), using 4 treatments; 3 superior soybean cultivars (Anjasmoro, Grobogan, and Wilis),and 1 imported soybean cultivar. Each treatment was repeated 6 times so that there were 24 experimental units and each experimental unit consisted of 5 plants so that the total number was 120 plants. The results showed that the pathogenicity of the Oospore ofP.manshurica from imported soybean seeds still caused downy disease in the three soybean cultivars tested. There was no difference in the incubation period of downy mildew caused by the Oospora ofP.manshurica on Anjasmoro, Grobogan, and Wilis cultivars, which were 5.5, 8.0, and 7.0 days after inoculation, respectively. The highest disease severity was found in the Anjasmoro cultivar (8.91%) and the lowest was in the Wilis cultivar (2.66%), but it was not different from the disease severity in the Grobagan cultivar (4.28%).
Co-Authors Husda Marwan Husda Marwan Mapegau Mapegau Mapegau Mapegau Marlina Marlina Marlina Marlina