Kelimpahan Relatif Artropoda Predator Penghuni Tajuk Tanaman Padi Galur Padi Rakitan Politeknik Negeri Lampung

Abstract
Description
The abundance of predatory arthropods in the rice field ecosystem acts as a biological agent that suppresses pest populations. This study aims to analyze the types of species, individuals, and abundance of predatory arthropods. The research was conducted at the Lampung State Polytechnic Seed Teaching Farm in August-December 2020. The rice plant lines planted by Lampung State Polytechnic were 14 New Type Rice (PTB) lines, namely Pandan Wangi (PW, B1, B2, B3, B4, B7, D2, D3, F3, F4, H1, H4, K, and L2 with 2 and comparable superior varieties namely Ciherang (CH) and Gilirang (Gil)). Rice cultivation is carried out conventionally. Observations of predatory arthropods that inhabit rice canopy were carried out using 3 double swings of insect nets / sweepnets per treatment plot. Insect collection was carried out at 06.00-09.00 WIB then identified in the Food Crops Laboratory II, counting the number of species, number of individuals and relative abundance. The results showed that predatory arthropods that inhabit the canopy of rice plants in several rice plant lines were obtained from the Oxyopidae, Tetragnathidae, Lycosidae, Coenagrionidae, Correidae, Coccinellidae, Chrysomelidae, and Staphylinidae families. The Tetragnathidae and Coenagrionidae families have the highest proportion of species and are found in each rice plant line.
Kelimpahan artropoda predator diekosistem sawah berperan sebagai agensia hayati yang menekan populasi hama. Penelitian ini bertujuan untuk menganalisis jenis spesies, individu, dan kelimpahan artropoda predator. Penelitian dilaksanakan dilahan Seed Teaching Farm Politeknik Negeri Lampung pada bulan Agustus-Desember 2020. Galur tanaman padi yang ditanam galur hasil rakitan Politeknik Negeri Lampung yaitu 14 galur Padi Tipe Baru (PTB) yaitu Pandan Wangi (PW, B1, B2, B3, B4, B7, D2, D3, F3, F4, H1, H4, K, dan L2 dengan 2 dan varietas unggul pembanding yaitu Ciherang (CH) dan Gilirang (Gil)). Budidaya tanaman padi dilakukan secara konvensional. Pengamatan artropoda predator penghuni tajuk tanaman padi dilakukan menggunakan jaring serangga/sweepnet sebanyak 3 ayunan ganda setiap plot perlakuan. Pengambilan serangga dilakukan pukul 06.00-09.00 WIB kemudian diidentifikasi di Laboratorium Tanaman Pangan II, dihitung jumlah spesies, jumlah individu dan kelimpahan relatif. Hasil penelitian menunjukkan bahwa artropoda predator penghuni tajuk tanaman padi pada beberapa galur tanaman padi didapat famili Oxyopidae, Tetragnathidae, Lycosidae, Coenagrionidae, Correidae, Coccinellidae, Chrysomelidae, dan Staphylinidae. Famili Tetragnathidae dan Coenagrionidae memiliki proporsi jumlah spesies yang paling tinggi dan ditemukan pada setiap galur tanaman padi.
Keywords
predatory antropods, rice line, relative abundance, artropoda predator galur padi kelimpahan relatif, antropda predator, galur padi, kelimpahan relatif
Citation