Pengaruh Habitat Termodifikasi Lahan Padi Sawah (Oryza Sativa) Menggunakan Trap Crop terhadap Komposisi dan Tingkat Keanekaragaman Arthropoda Herbivora
Submission Date: 2013-11-13 15:41:15
Accepted Date: 2013-12-01 00:00:00
Abstract
Arthropoda herbivora banyak ditemukan di berbagai habitat, termasuk ekosistem padi sawah. Arthropoda herbivora yang berpotensi hama dapat menimbulkan kerugian bagi para petani. Oleh karena itu digunakan modifikasi habitat pada ekosistem sawah dengan penggunaan trap crop berupa padi varietas ciherang membentuk perimeter mengelilingi main crop tanaman padi varietas IR-64 dan akan dibandingkan dengan lahan padi tanpa menggunakan modifikasi habitat. Kedua lahan pertanian tersebut memiliki perbedaan, oleh karena itu penelitian ini bertujuan mengetahui pengaruh habitat termodifikasi lahan padi sawah (oryza sativa) menggunakan trap crop terhadap perbedaan komposisi dan tingkat keanekaragaman arthropoda herbivora. Pengambilan sampel Arthropoda herbivora dilakukan menggunakan sweep net setiap 10 HST (Hari Setelah Tanam) sampai dengan panen disesuaikan dengan fase pertumbuhan padi. Komposisi taksa dari kedua lahan baik main crop maupun lahan dengan modifikasi habitat memiliki kehadiran beberapa taksa yang berbeda, dan dominansi peran yang berbeda setiap fase pertumbuhan padi. Berdasarkan indeks Shannon-wiener nilai keanekaragaman di kedua lahan pada setiap fase pertumbuhan padi adalah tergolong sedang. Indeks kesamaan komunitas Morishita Horn antara kedua lahan didapatkan nilai 0,75
Keywords
arthropoda herbivora; main crop; keanekaragaman; komposisi; trap crop
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