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All Journal BIOMA : Jurnal Biologi Makassar Jurnal Ilmiah Administrasita'
TAMRIN ABDULLAH
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Agriculture, Biological Sciences & Forestry Social Sciences

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ANALISIS PERKEMBANGAN INDUSTRI PENGOLAHAN BENANG SUTERA DI KABUPATEN WAJO Abdullah, Tamrin
Jurnal Ilmiah Administrasita Vol 4 No 1 (2014): Edisi Juni 2014
Publisher : Jurnal Ilmiah Administrasita

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Abstract

Penelitian ini berjudul Perkembangan Industri Pengolahan Benang Sutera di Kabupaten Wajo. Dalam Penelitian ini permasalahan terhadap ketersediaan sumber daya, sarana dan. prasarana pada saat ini belum mendukung perkembangan industri pengolahan benang sutera di Kabupaten Wajo.Hal tersebut diperoleh dari hasil analisis tanaman.Murbei sampai dengan pertengahan tahun 2011 mengalami penurunan rata-rata 11,98%. Penggunaan jenis bibit ulat sutera (FI) yang berkualitas hanya sebesar 28,3%. Bahan mentah sebagian besar diperoleh dari luar Kabupaten Wajo, dan hanya sekitar 20% diperoleh dari Kabupaten Wajo. Pendapatan usaha industri pengolahan benang sutera skala rumahtangga lebih menguntungkan dibandingkam dengan skalausaha skala industri kecil dengan angka R/C Rationya 1,98 %. Angka ini menyatakan bahwasetiap seratus persen modal yangdikeluarkan oleh pengusaha sutera akan menghasilkan penerimaan sebesar 198% dengan tingkat penurunannya Rp.98.
KOMPLEKS DAN KELIMPAHAN ARTHROPODA PADA PERTANAMAN JAGUNG Zea mays Prihatin -; Tamrin Abdullah; Nurul Wirid annisaa; Jumardi; Nirma Septia Ramlan; Victoria Coo Lea
BIOMA : JURNAL BIOLOGI MAKASSAR Vol. 8 No. 2 (2023): Bioma : Juli - Desember 2023
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Hasanuddin University

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Abstract

Maize is one of the carbohydrate and protein-producing food crops besides rice. Along with the development of the food and feed industries, the demand for corn continues to increase. The limiting factor in increasing corn productivity is the attack of plant disrupting organisms, especially pests. This study aims to determine the abundance of arthropods in corn crops and group them based on their roles, as well as analyse the effect of cultivation practises on arthopod abundance. The research was conducted in Situ Gede Village, Bogor District, West Bogor City, West Java. The research was conducted from March to May 2019. Observations of arthropods in corn plants were conducted regularly starting from the vegetative phase, namely 3 weeks after planting (WAP), 5 WAP, and 7 WAP, until the generative phase (before corn harvest). Sampling of arthropods was done by observing them directly (In situ), using Pitfall traps, and using insect nets (Sweep net). The results showed that in the vegetative stage, the herbivorous insects found were armyworms (Spodoptera litura) and grasshoppers (Oxya sp.), while in the generative phase, corn borer (Helicoverpa armigera) and corn stem borer (Ostrinia furnicalis) dominated. In addition to pests, natural enemies, especially predators, were spiders, ants, and beetles. Based on their role, the composition of arthropods starts with the most predators (41%), herbivores (29%), parasitoids (6%), and other insects (24%). The abundance of arthropods is also determined by farmers' cultivation practices. The more diverse the commodities, the higher the arthropod abundance. Polyculture systems tend to have higher arthropod abundance than monoculture. Key words: arthropods, maize, natural enemies, predators
Co-Authors JUMARDI Nirma Septia Ramlan Nurul Wirid annisaa Prihatin - Victoria Coo Lea