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Biologi Selenothrips rubrocinctus Giard (Thysanoptera: Thripidae) pada Tanaman Jarak Pagar Soesanthy, Funny; Maryana, Nina; Sartiami, Dewi; Karmawati, Elna
Jurnal Tanaman Industri dan Penyegar Vol 3, No 3 (2012): Buletin Riset Tanaman Rempah Dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jtidp.v3n3.2012.p207-216

Abstract

Trips pita merah, Selenothrips rubrocinctus Giard (Thysanoptera: Thripidae), merupakan salah satu hama pada tanaman jarak pagar (Jatropha curcas L.). Penelitian bertujuan menganalisis biologi dan morfologi S. rubrocinctus pada tanaman jarak pagar. Penelitian dilaksanakan di Balai Penelitian Tanaman Rempah dan Aromatik dan Laboratorium Departemen Proteksi Tanaman Institut Pertanian Bogor, pada bulan April 2008 sampai Mei 2009. Penelitian meliputi identifikasi Thysanoptera yang ditemukan di lapang, untuk meyakinkan bahwa trips yang ditemukan adalah S. rubrocinctus. Pengamatan biologi meliputi siklus hidup, waktu telur menetas, nisbah kelamin, dan uji partenogenetik. Hasil penelitian menunjukkan tipe perkembangan S. rubrocinctus merupakan peralihan antara paurometabolous dan holometabolous. Siklus hidup meliputi telur, nimfa (2 fase), pupa (prapupa dan pupa), dan imago. S. rubrocinctus hidup pada tanaman terutama pada daun. Lama perkembangan stadia pradewasa sekitar 18-25 hari, umur imago mencapai 14-15 hari.  Biology of Selenothrips Rubrocinctus Giard (Thysanoptera: Thripidae) on JatrophaABSTRACT Red-banded thrips, Selenothrips rubrocinctus Giard (Thysanoptera: Thripidae), is one of the pests on the plant of physics nut (Jatropha curcas L.). The study aims to analyze the biology and morphology S. rubrocinctus on jatropha plant. Research conducted in Indonesian Medicinal and Aromatics Plants Research Institute and Pest and Disease Laboratory, Bogor Agricultural Institut, on April 2008 until Mei 2009. The research include identification of Thysanoptera were found in the field, to make sure that thrips was found are S. rubrocinctus. Biological research include life cycles, time egg hatching, sex ratio, and parthenogenetics characteristics. Developmental type of S. rubrocinctus is transition between paurometabolous and holometabolous. Their life cycle consist of egg, nymph (2 phases), pupae (prapupae and pupae), and adult.  They spent the whole life on the plant, especially on the leaves.  Developmental time of immature stages were about 18-25 days, ages of adults reached 14-15 days.
Arthropoda yang Berasosiasi dengan Tanaman Refugia pada Pertanaman Padi di Desa Besur, Kabupaten Lamongan, Jawa Timur Fathan Hadyan Rizki; Nina Maryana; Hermanu Triwidodo
Jurnal Ilmu Pertanian Indonesia Vol. 26 No. 1 (2021): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.26.1.15

Abstract

Rice farmers in Besur Village planted four species of refugia plants around rice plants to enhance biological control as a part of Healthy Plant Management Program. These refugia plants were flowering plants i.e., Cosmos sulphureus, Helianthus annuus, Zinnia elegans, and Sesamum indicum. The objective of this research was to observe the Arthropods associating with these refugia plants. This research was conducted in December 2017 to March 2018 at Besur Village, Lamongan District, East Java Province. Samples were obtained from each refugia species by branches beating, sweep net, pitfall trap, and direct observation method in the vegetative, generative, and postharvest periods paddy plant. The results showed that Arthropods associated with refugia plants are mostly belong to the order of Diptera, Hymenoptera, and Araneae. Detritivore group was the most abundant in all periods. Analysis of the diversity and similarity of all refugia species showed moderate to high values with high similarities each other. Keywords: beneficial insect, flower, healthy plant management, integrated pest management, paddy field
Insect parasitoid and ant of associated on aphids (Aphididae) colonies on plants in West Java Yani Maharani; Nina Maryana; Aunu Rauf; Purnama Hidayat
CROPSAVER Vol 3, No 2 (2020)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v3i2.30645

Abstract

Aphid is a sucking insect as a pest and vector of virus diseases plants. The aphids presence on plants are often accompanied by ants that symbiotic on aphid’s colony. Mutualism symbiosis between ants and aphids can hinder natural enemies especially parasitoids to parasitizing aphids. This study aims to explore parasitoid and ant species associated with aphids and determine the level of parasitoid parasitization. The survey was conducted on agricultural crops and weeds in West Java area. Samples were taken by purposive sampling looking at the aphid presence, ant, and mummified colonies. Aphid’s identification was carried out at Insect Biosystematics Laboratory, Department of Plant Protection IPB, whileparasitoid and ant identification was carried out at Entomology Laboratory of Zoology LIPI. The identification results obtained four species of Hymenoptera parasitoid, i.e Adialythus ambiguus, Aphidius matricariae, Praon absinthi (Braconidae) and Psyllaephagus pilossus (Encyrtidae) and eight species of ants of Formicidae family, i.e Dolichoderus sp, Dolichoderus thoracicus, Monomorium destructor, Monomorium floricola, Myrmicaria brunnea, Pheidole javana, Polyrhachis dives, and Technomyrmex albipes. The dominant parasitoid species found was A. matricariae, but the highest level of parasitization was P. pilossus (78%), parasites Rhopalosiphum padi in rice plants. Basic information on the types of ants and parasitoid insects associated with aphids can be used in the development of aphids integrated pest management strategies.
Ulitilization of Refined Carrageenan as Cryoprotectant on Nila Frozen Surimi . Uju; Finda Maryana; Joko Santoso
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 10 No 2 (2007): Buletin Teknologi Hasil Perikanan
Publisher : Department of Aquatic Product Technology IPB University in collaboration with Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (970.585 KB) | DOI: 10.17844/jphpi.v10i2.957

Abstract

During storage frozen, surimi will be lost part of functional protein characteristics, because of protein denaturation. For reducing this problem, some kinds of cryoprotectants were added during surimi processing. However, some cryoprotectants such as sucrose and sorbitol made taste of original surimi changing because of its sweetness. The aim of this research is to use refined carrageenan as cryoprotectant in surimi. The characteristic of refined carrageenan was used in this research include following sulfate content at 15.16, whiteness at 38.89%, viscosity at 180.5 cPS and gel strength at 490 g/cm2. During frozen storage for 8 weeks, the protein total and salt soluble decreased until 17-30% and 49-72% respectively. These decreasing caused the water holding capacity and gel strength reduced until 22-65% and 38-46 g/cm2 respectively. The using of refined carrageenan in surimi can reduce the rate of protein declining and can improve water holding capacity and gel strength. Using of refined carrageenan at 2% is the best concentration in this research.Key words: cryoprotectant, refined carrageenan, gel strength
Serangga Pengunjung Bunga Yang Berpotensi Sebagai Vektor Penyakit Darah Pada Tanaman Pisang Di Kabupaten Sigli, Banda Aceh Betty Sahetapy; Nina Maryana; Syafrida Manuwoto; Kikin H. Mutaqin
Agrikultura Vol 31, No 1 (2020): April, 2020
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.184 KB) | DOI: 10.24198/agrikultura.v31i1.24176

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Penyakit darah disebabkan oleh blood disease bacterium (BDB). Bakteri diduga dapat ditularkan melalui bibit yang terinfeksi, alat pertanian, tanah yang terbawa air, kontak akar dan serangga pengunjung bunga pisang. Penelitian ini bertujuan untuk mengetahui serangga pengunjung bunga yang berpotensi sebagai vektor dalam penyebaran penyakit darah pada tanaman pisang. Penelitian diawali dengan pengumpulan sampel serangga di Kecamatan Padang Tiji, Kabupaten Sigli, Propinsi Banda Aceh. Lokasi ini merupakan area endemik penyakit darah pisang. Identifikasi serangga dilakukan di Laboratorium Biosistematika Serangga, sedangkan isolasi dan identifikasi BDB dilaksanakan di Laboratorium Bakteriologi Tumbuhan, Departemen Proteksi Tanaman, Fakultas Pertanian, Institut Pertanian Bogor. Bakteri yang diisolasi dikonfirmasi dengan uji Gram, hipersensitif dan patogenisitas. Hasil penelitian menunjukkan bahwa serangga yang ditemukan di area pertanaman pisang Desa Capah Paloh 1, Capah Paloh 2, Simpang Betung 1, Simpang Betung 2 dan Pante Cermin adalah tergolong dalam ordo Diptera dan Hymenoptera. Drosophilidae (Diptera) ditemukan lebih dominan di antara serangga-serangga tersebut.  BDB berhasil diisolasi dari seluruh tubuh serangga ordo Diptera (Drosophilidae, Tephritidae dan Muscidae) sehingga membuktikan bahwa serangga-serangga ini berpotensi sebagai vektor BDB.
PENGARUH PERENDAMAN DI DALAM LARUTAN NATRIUM-METABISULFIT SETELAH BLANSING TERHADAP WARNA TEPUNG PISANG RAJA BULU Carmencita Tjahjadi; Debby M. Sumanti; Hesty Maryana
Teknotan: Jurnal Industri Teknologi Pertanian Vol 1, No 1 (2007)
Publisher : Fakultas Teknologi Industri Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pada pembuatan tepung pisang perlakuan blansing uap dan perendaman dalam natrium-metabisulfit umum digunakan dalam proses pembuatan tepung pisang untuk mengendalikan pencoklatan enzimatis. Penelitian ini dilakukan pada bulan Januari hingga April 2006. Perendaman di dalam larutan natrium-metabisulfit dilakukan setelah blansing uap 15 menit. Konsentrasi natrium-metabisulfit yang digunakan adalah 0 ppm, 200 ppm, 400 ppm dan 600 ppm. Hasil penelitian menunjukkan bahwa perlakuan perendaman di dalam larutan natrium-metabisulfit 600 ppm selama 10 menit setelah blansing uap menghasilkan tepung pisang raja bulu dengan warna kuning dan bintik-bintik coklat yang lebih sedikit (L = +84,38, a = -10,26 dan b = +63,84), kadar air 9,63 % b.k, kandungan sulfit 55,39 ppm, rendemen 23,07 % dan biaya pengolahan Rp 13451,72/Kg. Kata kunci: Blansing uap, larutan natrium metabisulfit, tepung pisang
DETERMINAN PENINGKATAN PENDAPATAN ASLI DAERAH: SISTEM PERENCANAAN TERPADU Dedi Rosadi; Dede Maryana
Sosiohumaniora Vol 3, No 1 (2001): SOSIOHUMANIORA, MARET 2001
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/sosiohumaniora.v3i1.5193

Abstract

Di dalam konteks otonomi daerah, Pendapatan Asli Daerah (PAD) dari suatu propinsi, kabupaten, maupun kota merupakan salah satu ukuran kemampuan kemandirian suatu daerah otonom. Pajak Pembangunan I (PP I) salah satu sumber PAD yang paling potensial, yang besarnya 10% dari jumlah biaya atas pemakaian jasa layanan hotel dan rumah makan. Namun penerimaan dari sektor PP I ini pada setiap kabupaten di Propinsi Jawa Barat masih belum optimal. Keadaan itu diduga erat kaitannya dengan konsep perencanaan terpadu yang belum dirujuk di dalam upaya optimalisasi perolehan PAD dari sektor pajak daerah, khususnya PP I. Pertanyaan dalam studi ini: pertama, bagaimana perbedaan realisasi penerimaan PP I dibandingkan potensinya; kedua, apakah perencanaan oleh Dipenda kabupaten/kota di Jawa Barat dalam pungutan PP I telah sesuai persyaratan perencanaan terpadu; ketiga, apakah ada pengaruh dari perencanaan terpadu terhadap upaya peningkatan pendapatan asli daerah dari sektor PP I. Hasil studi ini menunjukkan bahwa perencanaan terpadu sangat bermakna dalam upaya pengoptimalan penerimaan daerah dari sektor pajak daerah. Kata Kunci : Perencanaan terpadu, pajak
Identifcation of Useful Chemical Content of Red and White Jabon Leaf (Anthocephalus spp.) Martini Wali; Noor Farikhah Haneda; Nina Maryana
Jurnal Silvikultur Tropika Vol. 5 No. 2 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.2.%p

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Jabon (Anthocephalus spp.) is a tree that has multiple functions. In addition to timber, jabon also useful as medicinalplants and fodder. This study aims to determine the primary compound content and the content of secondary metaboliccompounds in the leaves of red and white jabon. Test methods used were the proximate test for identification of primarycompounds and phytochemicals testing for the identification of secondary metabolic compounds from the jabon leaves. Ingeneral, the proximate test results show that white jabon leaves contain moisture, crude protein, crude fiber, ADF (AcidDetergent Fiber) and lignin in a greater percentage than that of red jabon 96.35%, 16.44%, 14.49%, 38.72%, 24.21%,respectively. Red jabon leaves contain more crude fat and cellulose, i. e. 3.15% and 10.13 %, respectively, while othercomponent such as ash content, NFE (Nitrogen Free Extract), Ca, P, N and silica with values 6.72%, 56.29%, 1.47 %,0.25%, 2.63%, 0.04% on white jabon, and 6.95%, 56.16%, 1.84%, 0.32%, 2.36%, 0.07% on red jabon. The content ofsalt (NaCl) in the same percentage is 0.03%. The test results showed that the phytochemical compounds identified arequinone compounds and steroids with higher concentration on leaves of red jabon than white jabon leaves. Based on thecolor type of quinone compounds were identified class of anthraquinone compounds. The results showed that the leavesof red jabon can be used as medicinal plants because they contain substantial amount of secondary metaboliccompounds. White jabon can be used as an alternative feed source for livestock because it contains more nutritioncompounds.
Correlation between Epidermis Thickness, Leaf Trichome Length and Density with the Whitefly Bemisia tabaci Population on Five Local Soybean Cultivars Muhamad Lutfi; Purnama Hidayat; Nina Maryana
Jurnal Perlindungan Tanaman Indonesia Vol 23, No 1 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.34498

Abstract

Soybeans compsumsion in Indonesia is about 2.7 million ton, while the national production is only about 0.7 million ton per year. There are some problems in the soybean production in Indonesia, including pests and diseases. Whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), is one of the important pests in soybeans causes a significant loss of yields. Developing soybean cultivars resistant to whitefly is one of method to reduce the production loss. This study aimed to determine the relationship between the physical characteristics of lower surface leaves and B. tabaci population on five local soybean cultivars. The experiments were conducted in the IPB greenhouse by Completely Randomized Design (RCD) using five soybean cultivars (Anjasmoro, Dena-1, Detam-3, Devon-1, and Wilis) with 3 replicates. Three plants of each cultivar were planted in a polybag, put under a cage, and after one week then infested with 5 female whiteflies. The parameters observed in this study were leaf epidermal thickness; density and length of trichome on lower leaf surface; and the number of egg, nymph, and adult of the whitefly. Observations were carried out every week, from 1−7 weeks after the plant was infested with the whitefly. The population of whitefly was affected by trichome density and length, as well as by the epidermal thickness of the lower leaf surface. The infestation of B. tabaci was higher in the soybean cultivars with denser and longer leaf trichomes, and thinner epidermal of the lower leaf surface. This result of this research suggests that it is necessary to include the characteristics of leaf trichome and epidermal thickness in the breeding program to produce soybean cultivars that are superior in productivity and resistant to whitefly.
Komposisi Rayap Dapat Menentukan Tingkat Ketergangguan Habitat : Studi Kasus di Kabupaten Dharmasraya Provinsi Sumatera Barat Sri Heriza; Damayanti Buchori; Idham Sakti Harahap; Nina Maryana
Jurnal Ilmu Lingkungan Vol 20, No 3 (2022): July 2022
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.20.3.678-684

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Transformasi habitat seperti pengalihan hutan alam ke bentuk habitat lain mempengaruhi aktivitas kehidupan organisme penting di dalamnya. Rayap merupakan organisme penting yang mempunyai peran sebagai dekomposer. Oleh sebab itu perlu dikaji dari komposisinya pada habitat-habitat dengan tingkat ketergangguan yang bervariasi. Penelitian ini bertujuan mempelajari komposisi rayap pada beberapa tingkat ketergangguan habitat. Penelitian ini dilakukan pada empat tipe penggunaan lahan di Kabupaten Dharmasraya Provinsi Sumatera Barat, yaitu hutan alam, hutan kebun, perkebunan kelapa sawit dan permukiman. Penelitian dilakukan dengan cara observasi di lapangan dan identifikasi spesies rayap di laboratorium. Untuk observasi, dilakukan di tiap habitat dengan petak pengamatan berukuran 50 m x 10 m. Satu petak pengamatan dibagi dalam sub petak pengamatan dengan ukuran 5 m x 5 m sehingga diperoleh 20 sub petak pengamatan. Setiap sub petak pengamatan dilakukan survei selama 30 menit, sehingga total untuk satu petak pengamatan adalah 600 menit atau 10 jam. Identifikasi rayap dilakukan di laboratorium dengan berpedoman pada beberapa kunci identifikasi spesies rayap. Pada penelitian ini ditemukan 14 spesies rayap pada beberapa habitat di Kabupaten Dharmasraya. Hasil analisis terhadap feeding group, indeks keanekaragaman, indeks kekayaan dan dominansinya menunjukkan habitat hutan alam dan hutan kebun cenderung memiliki kedekatan komposisi rayap yang lebih dekat daripada komposisi rayap yang ada di perkebunan kelapa sawit dan permukiman, kemudian komposisi rayap di perkebunan kelapa sawit dan permukiman memiliki tingkat kesamaan yang lebih dekat pula.ABSTRACTThe transformation of habitats such as natural forests to other forms of habitat affects the life activities of important organisms in them. Termites are important organisms that have a role as decomposers. Therefore, it is necessary to study its composition in habitats with varying levels of disturbance. This study aims to study the composition of termites at several levels of habitat disturbance. This research was conducted on four types of land use in Dharmasraya Regency, West Sumatra Province, namely natural forest, secondary forest, oil palm plantation, and settlement. The research was conducted by observing in the field and finding termite species in the laboratory. For observations, conducted in each habitat with an observation plot measuring 50 m x 10 m. One observation plot in the observation sub-plot with a size of 5 m x 5 m in order to obtain 20 observation sub-plots. Each sub-plot was observed for 30 minutes, so that the total observations in one plot were 600 minutes or 10 hours. Termite identification is carried out in the laboratory based on several key termite discoveries. In this study, 14 species of termites were found in several habitats in Dharmasraya Regency. The results of the analysis of food groups, diversity index, richness index and dominance showed that natural forest and secondary forest tended to have closer proximity than the composition of termites in oil palm plantations and settlement and the composition of termites in oil palm plantations and settlement had high levels of even closer similarities.