Simarmata, Wilander (2013) STRUKTUR KOMUNITAS SERANGGA WERENG (AUCHERNORRHYNCHA) PADA MASA VEGETASI DAN MASA SINGGANG - SINGGANG DI KABUPATEN DELI SERDANG. Undergraduate thesis, UNIMED.
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Abstract
Penelitian ini bertujuan untuk mengetahui keanekaragaman, kelimpahan, indeks keanekaragaman, dan indeks dominansi wereng di empat desa di kabupaten Deli Serdang. Pengambilan sampel penelitian dilakukan di areal persawahan padi di Desa Dalu, Desa wonosari, Desa Payah Gambar, Desa Sidoarjo II Ramunia, sedangkan pengindenfikasiannya dilakukan di laboratorium Biologi.Penelitian ini ini menggunakan metode sampling, dengan menggunakan jala serangga (insecting net). Dalam satu minggu dilakukan 4 kali pengambilan sampel. Pengambilan wereng dilakukan dengan melakukan pengayunan jala serangga sebanyak 50 kali menyentuh bagian atas singgang-singgang padi. Yang dilakukan pada bagian utara, barat, tengah, timur dan selatan sehingga setiap sampling berjumlah 250 kali ayunan pada vegetasi dan Singgang-Singgang. Parameter tambahan yang diamati adalah faktor fisika lingkungan pada areal persawahan padi yakni suhu, dengan kisaran 27-31,5ºC, kelembahan dengan kisaran 75,75-84,5%, dan kecepatan angin dengan kisaran 7,25-8 km/jam.Hasil penelitian menunjukkan bahwa di kabupaten Deli Serdang terdapat 5 jenis serangga wereng (Auchernorrhyncha) pada masa vegetasi dan masa singgang-singgang pada tanaman padi yaitu : Nephotettix.sp, Nilaparvata lugens, Recilia dorsalis, Sogatella furcifera, Thaia sp. Kelimpahan setiap jenisnya yang tertinggi terdapat pada jenis Nilaparvata lugens jumlah 497 individu dan kelimpahan terendah terdapat pada jenis Thaia sp dengan jumlah 2 individu.Berdasarkan indeks dominansi, wereng Nilaparvata lugens memiliki indeks dominansi paling besar (0,4261) dan yang paling rendah Thaia sp dengan total dominansi 0,0002).
Item Type: | Thesis (Undergraduate) | ||||||
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Call Number: | 595.7 Sim s | ||||||
Keywords: | Serangga Homoptera; Tamanan Padi; Klasifikasi Wereng; Hama; Fisika Lingkungan | ||||||
Subjects: | Q Science > QH Natural history > QH301 Biology | ||||||
Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Biologi | ||||||
Depositing User: | Mr Muhammad Iqbal | ||||||
Date Deposited: | 08 Apr 2016 08:34 | ||||||
URI: | http://digilib.unimed.ac.id/id/eprint/11848 |
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