Studi karakteristik trikoma pada beberapa galur kedelai (Glycine max L.) toleran dan peka terhadap serangan ulat grayak Spodoptera litura F. (Lepidoptera: Noctuidae)

Khoiriyah, Ika (2011) Studi karakteristik trikoma pada beberapa galur kedelai (Glycine max L.) toleran dan peka terhadap serangan ulat grayak Spodoptera litura F. (Lepidoptera: Noctuidae). Undergraduate thesis, Universitas Islam Negeri Maulana Malik Ibrahim Malang.

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Abstract

INDONESIA:

Kedelai (Glycine max L.) merupakan bahan pangan dan sumber protein nabati untuk memenuhi kebutuhan pangan manusia, ternak, serta berguna sebagai bahan mentah berbagai aneka industri. Serangan hama ulat grayak (S. litura F.) terhadap tanaman kedelai, adalah faktor yang menjadi kendala usaha tani. Oleh karena itu pengendalian hama perlu dilakukan dengan penggunaan galur tahan hama, yaitu melalui seleksi karakteristik morfologi dan anatomi daun. Karakteristik daun kedelai diduga mempunyai hubungan yang erat dengan ketahanan terhadap serangga, yakni kerapatan trikoma daun dapat menghalangi proses pengisapan atau pengambilan sari makanan oleh ulat grayak. Penelitian ini bertujuan untuk mengetahui intensitas kerusakan daun oleh serangan hama, serta analisis korelasi antara kerapatan trikoma daun kedelai dengan ketahanan galur terhadap serangan ulat grayak.

Penelitian dilaksanakan pada bulan Juli sampai September 2010 dengan lokasi penelitian di Greenhouse Balai Penelitian Tanaman Kacang-kacangan dan Umbi-Umbian (BALITKABI) di Kendalpayak Pakisaji Malang dan Laboratorium Optik Jurusan Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Maulana Malik Ibrahim Malang. Penelitian ini dibagi menjadi 2 tahap yaitu penelitian deskriptif dan eksperimental menggunakan Rancangan Acak Lengkap (RAL), 2 kali ulangan. Apabila terdapat perbedaan nyata maka dilanjutkan dengan uji Beda Nyata Terkecil (BNT) 5%. Perlakuan yang digunakan adalah 45 galur kedelai dan S. litura instar II sejumlah 450 ekor. Data hasil penelitian meliputi nilai intensitas kerusakan daun, ketahanan galur oleh serangan ulat grayak dan kerapatan trikoma.

Hasil penelitian menunjukkan bahwa kriteria ketahanan tanaman berdasarkan nilai intensitas kerusakan daun, dari 45 galur kedelai (Glycine max L.) diketahui 4 galur tergolong kategori sangat tahan (ST), 4 galur tergolong tahan (T), 9 galur tergolong agak tahan (AT), 24 galur tergolong rentan (R), dan 3 galur tergolong sangat rentan (SR). Dari hasil tersebut dapat diketahui pula perbedaan galur kedelai (Glycine max L.) berpengaruh terhadap ketahanan akibat serangan ulat grayak, dan ditinjau dari segi anatomi daun (trikoma) dapat diketahui bahwa kerapatan trikoma menunjukkan hubungan negatif dengan tingkat ketahanan galur kedelai terhadap serangan ulat grayak.

ENGLISH:

Soybean is representing food materials and vegetation protein source to fulfill requirement of human being food, livestock, and also good for raw upon which various is multifarious of industry. Pest attack on Grayak to soybean crop, is factor becoming farming constraint. Therefore operation of pest require to be conducted by using varietas resistant of pest, that is passing morphology characteristic selection and leaf anatomy. Characteristic leaf of soybean have close relation with resistant to insect, anticipated by closeness trikoma of leaf can hinder suction process or intake of food gist by grayak. This research purpose to know intensity damage of leaf by pest attack, and also analyse closeness trikoma of leaf soybean with galur that is resistant to attack of grayak.

Research was conducted in July until September 2010 with location in Greenhouse Hall Research of Crop Legume and Tuber ( BALITKABI) in Kendalpayak District of Pakisaji Malang and Optical Laboratory of Biology, Department of State Islamic University Maulana Malik Ibrahim Malang. This Research is divided to become 2 phase that is descriptive research and eksperimental use Complete Random Device ( RAL), 2 times restating. If there are difference of reality hence continued with Different of Smallest Reality (BNT) 5%. Treatment the used 45 galurs soy and 450 of II instar S. litura. Data result of research cover intensity value.

Result of research indicate that crop resistence criterion pursuant to intensity value damage of leaf, from 45 soybean galurs known by 4 galur pertained category very resistant ( ST), 4 galur pertained to resistant ( T), 9 galur pertained rather resistant ( AT), 24 galur pertained sensitive ( R), and 3 galur pertained very sensitive ( SR). From the result can know also difference of soy galur ( Max L Glycine.) having an effect on to attack resistant of grayak, and evaluated from leaf anatomy facet ( trikoma) can know that closeness of trikoma relate to resistant level of soybean galur to attack of grayak. Anticipated by excelsior closeness of trikoma hence progressively resistant the galur to pest attack.

Item Type: Thesis (Undergraduate)
Supervisor: Minarno, Eko Budi and Suharsono, Suharsono and Nashichuddin, Achmad
Keywords: Kedelai; Karakteristik Trikoma; Toleran; Peka; Ulat Grayak; Soybean; Characteristic Trikoma; Sensitive; Resistant; Grayak (Spodoptera litura F.)
Subjects: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060201 Behavioural Ecology
Departement: Fakultas Sains dan Teknologi > Jurusan Biologi
Depositing User: Chusnul Faida Ulfa
Date Deposited: 05 Aug 2015 07:30
Last Modified: 05 Aug 2015 07:30
URI: http://etheses.uin-malang.ac.id/id/eprint/917

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