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Response of rice varieties (Oryza sativa L.) to brown planthopper (Nilaparvata lugens Stall) of Karawang colonies The research was conducted to determine the resistant level of several rice varieties (Oryza sativa L.) against brown planthopper (Nilaparvata lugens Stall) Karawang colony. The experiment was done at the Entomology Laboratory of Pest Forcesting Institute, Jatisari, Directorate General of Food Crops, Ministry of Agriculture. It was conducted from February to June 2017. The resistant of rice varieties against brown planthopper was tested using honey dew test method with bromocressol green as indicator. Honey dew test method is one of methods to evaluate rice variety reaction against brown planthopper population origin of certain area. This is due to the production of honey dew by brown planthopper which positively correlated with the amount of liquid being drawn from the plant. This study used Duncan Test on 5% level. The result demonstrated the variation of rice resistant against brown planthopper based on the area of honey dew spot, brown planthover mortality, attacks intensity, the destruction level on plant, and the rice yield. Inpari 13 was the most toleranct rice variety against the infestation of brown planthopper of Karawang colony. Keywords: Brown planthopper, Honey dew, Paddy, Resistance, Varieties ABSTRAK Penelitian ini bertujuan untuk menilai tingkat ketahanan varietas padi (Oryza sativa L.) terhadap wereng batang coklat (Nilaparvata lugens Stall) koloni Karawang. Penilitian dilaksanakan di Laboratorium Entomologi Balai Besar Peramalan Organisme Pengganggu Tumbuhan (BBPOPT) Jatisari, Direktorat Jenderal Tanaman Pangan, Kementerian Pertanian. Penelitian berlangsung dari Bulan Februari sampai Bulan Juni 2017. Pengujian ketahanan varietas padi terhadap wereng batang coklat dilakukan dengan menggunakan metode uji embun madu (honeydew test) dengan memakai indicator bromocressol green. Metode uji embun madu merupakan salah satu metode untuk mengevaluasi reaksi suatu varietas terhadap populasi wereng batang coklat yang berkembang di suatu wilayah tertentu, karena jumlah embun madu yang dikeluarkan oleh wereng batang coklat mempunyai hubungan yang positif dengan jumlah cairan tanaman yang dihisap. Uji lanjut yang digunakan adalah uji lanjut Duncan pada taraf 5%. Hasil penelitian menunjukkan terdapat variasi ketahanan antar varietas padi yang diuji dilihat dari luas bercak embun madu yang dihasilkan pada masing-masing varietas padi, mortalitas wereng batang coklat, intensitas serangan, tingkat kerusakan tanaman, dan bobot hasil panen padi. BErdasarkan parameter tersebut di atas, Inpari 33 merupakan varietas padi yang tahan terhadap serangan wereng batang coklat koloni Karawang. Kata kunci : Embun madu, Ketahanan, Padi, Varietas, Wereng batang coklat

Respons Beberapa Varietas Padi (Oryza sativa L.) terhadap Wereng Batang Coklat (Nilaparvata lugens Stall) Koloni Karawang