Abstract
This study aims to determine the resistance of several varieties of rice (Oryza sativa L) against the attack of the warehouse pest Corcyra cephalonica. This research was conducted at the Basic Laboratory of Samudra University and the Agrotechnology Laboratory of the Faculty of Agriculture, Samudra University, Langsa City, Aceh Province which took place from January to March 2021. This research was conducted using a non-factorial Completely Randomized Design (RAL) using several varieties of rice, namely Ciherang , ramos, inpari 79, inpari 30, inpari 32, inpari 44. In this study, it was found that rice classified as resistant to C. cephalonica, namely the Ciherang variety, was tested for percent of hollow seeds, percent loss of weight, percent of rice powder and susceptibility index. Meanwhile, rice classified as susceptible to C. cephalonica, namely the Inpari-32 variety, was tested for percent of hollow seeds, percent of weight loss, percent of rice powder and rice susceptibility index.
Highlights
PENDAHULUAN Indonesia merupakan negara agraris yang penduduknya sangat bergantung pada sektor pertanian
This study aims to determine the resistance of several varieties of rice (Oryza sativa L) against the attack of the warehouse pest Corcyra cephalonica
Penurunan indeks glikemik berbagai varietas beras melalui proses pratanak
Summary
Keterangan : Angka yang diikuti oleh huruf yang sama berbeda tidak nyata menurut uji BNJ pada taraf 0,05. Pada Tabel 1 menunjukkan bahwa rata-rata persen biji berlubang dari 6 varietas beras yang diuji yaitu varietas V1 (Ciherang) memiliki nilai kerusakan tertinggi dan berbeda nyata dengan varietas V2 (Ramos), V4 (Inpari 30), V5 (Inpari 32), V6 (Inpari 44) dan tidak berbeda nyata dengan V3 (Inpari 79). Sedangkan nilai kerusakan terendah dijumpai pada varietas V5 (Inpari 32) dan berbeda nyata dengan varietas V1 (Ciherang), V3 (Inpari 79), V4 (Inpari 30), V6 (Inpari 44) dan tidak berbeda nyata dengan varietas V2 (Ramos). Kerusakan ini diakibatkan adanya aktivitas makan serangga dan kandungan nutrisi. Aktivitas makan serangga memiliki hubungan yang erat terhadap kandungan air yang dimiliki oleh beras. Menurut Chapman, (2013) bahwa salah satu faktor yang dapat mempengaruhi pertumbuhan dan perkembangan serangga adalah nutrisi yang terdapat pada makanan serangga.
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