INFLUENCE OF RAINFALL ON DOWNY MILDEW INTENSITY, PRODUCTIVITY, AND SYMPTOMS OF Peronosclerospora spp. ATTACK IN MAIZE CROPS IN SIMALUNGUN REGENCY
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Murni Radiah
Syamsafitri
Murni Sari Rahayu
Romi Fahri
Maize is one of the world's food crops, and Simalungun Regency is one of the corn production centers in Indonesia. Corn production in Simalungun Regency has decreased due to various factors including downy mildew. Downy mildew disease is caused by Peronosclerospora spp. its development is increasingly rapid supported by a high humidity environment, while the purpose of the study was to examine the effect of rainfall on downy mildew disease intensity, productivity, production, and symptoms of corn plant attack in different locations.Research method: Observations of correlation and regression tests of rainfall on disease intensity, productivity, production, and harvest area of corn were analyzed using Minitab statistical application.The results showed that there is a relationship between rainfall and downy mildew intensity, production, productivity, and harvest area of corn plants. The intensity of downy mildew was highest in Tanah Jawa sub-district with an average disease intensity of 7.81%, this was due to the fact that no eradication was done on plants infected with Peronosclerospora spp. The symptoms of attack found at each observation location had the same symptoms.
Badan Pusat Statistik. (2022), “ Luas Panen Produksi dan Rata-Rata Produksi Jagung Menurut Kabupaten /Kota”, https://sumut.bps.go.id/indicator/53/156/1/luas-panen-produksi-dan-rata-rata-produksi-jagung-menurut-kabupaten-kota.html.
Balai Besar Peramalan Organisme Pengganggu Tanaman. (2022), “Prakiraan Serangan OPT Utama Padi”,
Ivan Setyastiawan,Teguh Wahyono, Yusniar Lubis. (2010), “Peranan Komoditas Jagung (Zea Mays L.) Terhadap Peningkatan Pendapatan Wilayah Kabupaten Karo”, Agrica (Jurnal Agribisnis Sumatera Utara) Vol.3 No.2/Oktober 2010.
Jatnika, W., A. L. Abadi, dan L. Q. Aini. 2013. Pengaruh Aplikasi Bacillus sp. Dan Pseudomonas sp. terhadap perkembangan penyakit bulai yang disebabkan oleh jamur Peronosclerospora maydis pada tanaman jagung. Jurnal HPT, 1(4): 19-29.
Kalqutny, S. H., Pakki, S., & Muis, A. (2020), “Potensi Pemanfaatan Teknik Molekuler Berbasis DNA dalam Penelitian Penyakit Bulai pada Jagung”, AGROSAINSTEK: Jurnal Ilmu Dan Teknologi Pertanian, 4(1), 17–27.
Karim, Harli A., M. Yasin HG. Hasanuddin Kandatong, Hasan, Hasan, Himahwati, dan Fitrianti. (2020), “Uji Berbagai Produksi Varietas Jagung ( Zea mays.L ). Hibrida dan non Hibrida yang sesuai pada agroekosistem kabupaten Poliwali Mandar”, Agrovital. : Jurnal Ilmu Pertanian. Vol 15 (1) : 25-29.
Muis, A., Suriani., Kalqunty, S.H., dan Nonci, N. (2018), “Penyakit Bulai Pada Tanaman Jagung dan Upaya Pengendaliannya”, Sleman: Deepublish.
Ridwan, H. M., M, Nurdin dan S. Ratih. (2015), “Pengaruh Paenibacillus polymyxa dan Pseudomonas fluorescens dalam molase terhadap keterjadian penyakit bulai (Perenosclerospora maydis L.) pada tanaman jagung manis”, Agrotek Tropika, 3(1): 144-147.
Rustiani, U.S., Sinaga, M.S., Hidayat, S.H., dan Wiyono, S. (2015), “Tiga Spesies Peronosclerospora Penyebab Penyakit Bulai Jagung di Indonesia”, Berita Biologi 14 (1): 29-37.
Sumarlin, S., Karimuna, L., & Syaf, H. (2018), “Pengaruh faktor iklim terhadap pertumbuhan dan produksi tanaman jagung (zea mays l.)”, Berkala Penelitian Agronomi, 5(2), 17. https://doi.org/10.33772/bpa.v6i1.751 7
Sumarlin, S., Karimuna, L., & Syaf, H. (2018), “Pengaruh faktor iklim terhadap pertumbuhan dan produksi tanaman jagung (zea mays l.)”, Berkala Penelitian Agronomi, 5(2), 17. https://doi.org/10.33772/bpa.v6i1.751 7
Tarigan, N.B. (2024), “Identifikasi Peronosclerospora spp. Penyebab Penyakit Bulai dan Iklim terhadap Produktivitas Tanaman Jagung (Zea mays L.) di Kabupaten Deli Serdang”, Tesis. Universitas Islam Sumatera Utara. Medan.
Widiantini, F., Pitaloka, D.J., Nasahi, C., dan Yulia, E. (2017), “Perkecambahan Peronosclerospora spp. Asal Beberapa Daerah di Jawa Barat pada Fungisida Berbahan Aktif Metalaksil, Dimetomorf dan Fenamidon”, Jurnal Agrikultura 2017, 28 (2): 95-102.















