Wahyuningtyas, Dila (2020) Pertumbuhan Populasi Dan Perkembangan Corcyra cephalonica (Stainton) Pada Beras Merah. Sarjana thesis, Universitas Brawijaya.
Abstract
Beras merah merupakan salah satu jenis beras yang sering dikonsumsi oleh masyarakat Indonesia. Kesadaran masyarakat Indonesia akan kesehatan semakin meningkat, khususnya pada masyarakat perkotaan yang sudah banyak mengonsumsi beras merah yang diketahui memiliki kandungan nutrisi yang lebih tinggi dan baik untuk kesehatan manusia dibandingkan beras putih. Proses penyimpanan beras merupakan tahap paling penting dalam kegiatan pascapanen. Salah satu hama yang menyerang komoditas beras di tempat penyimpanan adalah Corcyra cephalonica (Stainton) (Lepidoptera: Pyralidae). Penelitian ini bertujuan untuk mengkaji pertumbuhan populasi dan perkembangan C. cephalonica pada berbagai persentase proporsi bentuk butiran beras merah yang berbeda. Penelitian dilakukan di Laboratorium Hama Tumbuhan, Jurusan Hama dan Penyakit Tumbuhan (HPT), Fakultas Pertanian, Universitas Brawijaya pada bulan November 2019 hingga April 2020. Rerata suhu harian Laboratorium yaitu 27,3 oC dan kelembapan 72,2%. Penelitian ini terdiri dari 12 perlakuan yang diulang sebanyak 3 kali dengan masing-masing 100 g pakan per unit perlakuan. Proporsi bentuk butiran beras merah yang digunakan dalam perlakuan meliputi utuh 100%, patah 100%, tepung 100%, utuh 75% + patah 25%, utuh 50% + patah 50%, utuh 25% + patah 75%, utuh 75% + tepung 25%, utuh 50% + tepung 50%, utuh 25% + tepung 75%, patah 75% + tepung 25%, patah 50% + tepung 50%, dan patah 25% + tepung 75%. Penelitian pertumbuhan populasi dan perkembangan C. cephalonica, diatur menggunakan Rancangan Acak Lengkap (RAL). Pakan perlakuan kemudian dimasukkan dalam tabung polystrene (t=7 cm, d=8 cm), masing-masing perlakuan diinfestasikan sebanyak 100 butir telur C. cephalonica. Variabel pengamatan pertumbuhan meliputi jumlah larva, pupa, dan imago C. cephalonica. Pengamatan perkembangan dilakukan dengan mengambil 10 butir telur yang telah diletakkan oleh imago pertumbuhan pada hari yang sama. Telur tersebut masing-masing dimasukkan pada tabung kecil (d = 3 cm, t = 4 cm) dan diamati setiap hari sampai menetas menjadi larva. Setiap larva kemudian dipindahkan pada tabung kecil baru yang telah berisi pakan seberat 6 g sesuai dengan perlakuan penelitian. Variabel pengamatan perkembangan meliputi stadium telur, larva, pupa, praoviposisi, oviposisi, pascaoviposisi, lama hidup imago jantan dan betina, fekunditas, dan fertilitas C. cephalonica. Hasil penelitian pertumbuhan populasi C. cephalonica menunjukkan bahwa proporsi bentuk butiran beras merah yang berbeda berpengaruh nyata terhadap jumlah larva, pupa, dan imago. Pertumbuhan populasi C. cephalonica lebih tinggi pada perlakuan proporsi bentuk butiran beras merah utuh 100 %, utuh 75 % + patah 25%, utuh 25% + patah 75% dibandingkan dengan perlakuan proporsi bentuk beras merah tepung 100% dan patah 75% + tepung 25%. Hasil dari pengamatan perkembangan C. cephalonica menunjukkan bahwa perlakuan proporsi bentuk beras merah yang berbeda berpengaruh nyata terhadap stadium larva, sebaliknya tidak berpengaruh nyata terhadap stadium telur, pupa, praoviposisi, oviposisi, pascaoviposisi, lama hidup imago jantan dan betina, fekunditas, dan fertilitas C. cephalonica. Perkembangan C. cephalonica lebih cepat pada perlakuan proporsi bentuk butiran beras merah utuh 75% + patah 25% dibandingkan dengan perlakuan proporsi bentuk beras merah tepung 100%, utuh 25% + patah 75%, utuh 50% + tepung 50%, utuh 25% + tepung 75%, dan patah 50% + tepung 50%.
English Abstract
Red rice is one type of rice which is often consumed by Indonesian people. Nowadays, public awareness about healthy is increasing, especially in urban community that have consumed a lot of red rice. Red rice is known to have higher nutritional content than white rice and that’s better for human health. The storage process of rice is the most important in post-harvest activity. One of the abstacle in storage of rice is the attack of stored pests namely C. cephalonica (Stainton) (Lepidoptera: Pyralidae). The purpose of this research is to assess the population growth and development of C. cephalonica in different proportion forms of red rice. This research was conducted at the Plant Pest Laboratory, Department of Pests and Plant Diseases, Faculty of Agriculture, Brawijaya University from November 2019 until April 2020 with temperature is 27.3 oC and humidity 72.2%. This research was consisted of twelve treatments i.e 100% whole, 100% broken, 100% flour, 75% whole + 25% broken, 50% whole + 50% broken, 25% whole + 75% broken, 75% whole + 25% flour, 50% whole + 50% flour, 25% whole + 75% flour, 75% broken + 25% flour, 50% broken + 50% flour, and 25% broken + 75% flour of red rice. The research was designed using a Completely Randomized Design (CRD) and it was repeated 3 times. One hundred grams of insect diet was put into a polystrene tube (t = 7 cm, d = 8 cm), and each treatment was infested with 100 eggs C. cephalonica. The observation variables of population growth included the number of larvae, pupae, and C. cephalonica adult. The observation of development is done by taken 10 eggs from paired of adult that emerged at the same day from population growth research. Then, the eggs was put in a small tube (d = 3 cm, t = 4 cm) and observed every day until hatch into larvae. Then, each larvae was transferred to a new small tube which contained 6 g of diet in treatment proportion. The observation variables of development were egg stadium, larval stadium, pupal stadium, preoviposition, oviposition, postoviposition, longevity of male and female adult, fecundity, and fertility of C. cephalonica. The results population growth of C. cephalonica showed that the different proportion forms of red rice significantly affected the number of larvae, pupae, and adults. Population growth of C. cephalonica was higher at 100% whole, 75% whole + 25% broken, and 25% whole + 75% broken compared to 100% flour and 75% broken + 25% flour. The results of development C. cephalonica showed that the different proportion forms of red rice significantly affected the larval stadium but it was not significantly affected the egg stadium, pupal stadium, preoviposition, oviposition, postoviposition, longevity of male and female adult, fecundity, and fertility of C. cephalonica. Development of C. cephalonica was faster in the treatment 75% whole + 25% broken compared to 100% red rice flour, 25% whole + 75% broken, 50% whole + 50% flour, 25% whole + 75% flour, and 50% broken + 50% flour.
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0520040008 |
| Subjects: | 600 Technology (Applied sciences) > 633 Field and plantation crops > 633.1 Cereals > 633.18 Rice > 633.189 Rice (Injuries, diseases, pests) > 633.189 7 Rice (Insect pests) > 633.189 78 Rice (Lepidoptera) |
| Divisions: | Fakultas Pertanian > Hama dan Penyakit Tanaman |
| Depositing User: | Nur Cholis |
| Date Deposited: | 01 Feb 2021 12:42 |
| Last Modified: | 01 Feb 2021 12:42 |
| URI: | http://repository.ub.ac.id/id/eprint/182312 |
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