Department of Biology: Recent submissions
Now showing items 501-520 of 1255
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Kemampuan Bakteri Kitinolitik Lokal dalam Menghambat Pertumbuhan Fusarium Sp Tanaman Kopi
(Universitas Sumatera Utara, 2010)A study on the ability of chitinolytic bacteria to inhibit the growth of Fusarium sp. isolated from coffee plant, has been conducted from Juni until Desember 2010. The pathogenic fungi were isolated from leaves, fruits, ... -
Studi Taksonomi Rotan di Kawasan Sikundur Taman Nasional Gunung Leuser Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2012)The Taxonomic Study of Rattan In Sikundur Area Leuser National Park of North Sumatera using Survey Methods has been studied from May to Agustust 2011. There are 27 species of rattan found in the study area belonging ... -
Potensi Isolat Bakteri Asal Laut Sibolga dan Tanjung Balai dalam Mendegradasi Minyak Solar
(Universitas Sumatera Utara, 2011)The potency of bacteria isolated from Sibolga and Tanjung Balai seashore in degrading diesel oil has been studied in the Microbiology Laboratory Departemen of Biology, Faculty of Mathematics and Natural Sciences University ... -
Gambaran Histologis, Berat dan Volume Testis Mencit (Mus musculus L.) setelah Pemberian Kombinasi Testosteron Undekanoat (TU) dan Ekstrak Air Biji Blustru (Luffa aegyptica Roxb.)
(Universitas Sumatera Utara, 2011)Testosterone Undecanoate (TU) is one of steroid compound which was developed for male contraception in the form of injections (liquid). Seed of blustru plant (Luffa aegyptica Roxb.) contains alkaloid that is cytotoxic ... -
Keanekaragaman Plankton di Danau Lut Tawar Kecamatan Lut Tawar Kota Takengon Kabupaten Aceh Tengah
(Universitas Sumatera Utara, 2010)Have been done research about Diversity Plankton in Lut Tawar Lake Lut Tawar District Takengon City Aceh Tengah Sub Province. This research is done with Purposive Random Sampling that determinating 3 research station of ... -
Keanekaragaman Plankton di Perairan Pulau Sembilan Kecamatan Pangkala Susu Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2011)Have been done research with the title “Diversity of Plankton in Water Island District Nine Pangkalan Susu Langkat North Sumatra”. This research is done with the method of purpossive Random Sampling that is determine 3 ... -
Keanekaragaman Makrozoobenthos di Kawasan Perairan Kuala Tanjung Kecamatan Medang Deras Kabupaten Batubara
(Universitas Sumatera Utara, 2011)Research about “ The diversity of macrozoobenthos in Kuala Tanjung seas area subdistrict of Medang Deras District of Batubara” has been observed. The sampling was conducted from four station of observation. The sampling ... -
Studi Testosteron Plasma, Kuantitas dan Kualitas Spermatozoa Mencit (Mus musculus L.) setelah Pemberian Kombinasi Hormon Testosteron Undekanoat (TU) dan Ekstrak Air Biji Blustru (Luffa aegyptica Roxb.)
(Universitas Sumatera Utara, 2011)The aim of this study was to determine the influence of a combination of TU and blustru seed extract against plasma testosterone, the quantity (number of spermatozoa), and quality (motility, viability and morphology) ... -
Studi Etnobotani Tumbuhan Herba oleh Masyarakat Karo di Kawasan Taman Nasional Gunung Leuser (Studi Kasus di Desa Telagah Kecamatan Sei Bingai Kabupaten Langkat)
(Universitas Sumatera Utara, 2010)Research on the ethnobotany studies herbaceous by Karo Community in Gunung Leuser National Park area (case study in the village of Sei Bingai Telagah Langkat District), has been conducted from May to June 2010. The purpose ... -
Keanekaragaman Makrozoobenthos di Sungai Sibiru-Biru Kecamatan Sibiru Biru Kabupaten Deli Serdang
(Universitas Sumatera Utara, 2011)Research about “The Diversity Of Macrozoobenthic in Sibiru-biru river flows, Subdistrict of Sibiru-biru and Subdistrict Of Deli Serdang” was Investigated on August 2010. Purposive Random Sampling method was applied to ... -
Laju Pertumbuhan Populasi Brachionus Plicatilis O. F. Muller dengan Penambahan Vitamin C pada Media Cakap
(Universitas Sumatera Utara, 2010)Research on, "The Growth Rate of Brachionus plicatilis O. F. Muller Population with addition of Vitamin C in CAKAP Medium " has been conducted in May 2010, carried out at Animal Sistematic Laboratory at Biology Department, ... -
Keanekaragaman Makroarthropoda Tanah Akibat Limbah Cair PKS di Kebun PTPN III Sei Mangkei Kabupaten Simalungun
(Universitas Sumatera Utara, 2011)Research about “ The Diversity of Soil Macroarthropoda Caused by Liquid Waste of Palm Oil Plant in Plantation of PTPN III Sei Mangkei Simalungun” was done in June 2010. The sampling point is determined using Purposive ... -
Struktur dan Komposisi Vegetasi Seedling dan Sapling di Kawasan Hutan Taman Nasional Gunung Leuser Desa Telagah Kabupaten Langkat
(Universitas Sumatera Utara, 2010)Research on "Vegetation Structure and Composition of Sapling and Seedling in Forest area of the Gunung Leuser National Park Village Telagah Langkat" was held in May-August 2010. The research location is determined by ... -
Keanekaragaman Makrozoobentos di Sungai Bah Bolon Kabupaten Simalungun Sumatera Utara
(Universitas Sumatera Utara, 2011)“The diversity of macrozoobenthos in Bah Bolon River Regency of Simalungun Provinceo of North Sumatera” has been observed and it was identified in Management Laboratory of Natural Resource and Environment, Study Program ... -
Keanekaragaman Makrozoobenthos di Perairan Pulau Kampai Kecamatan Pangkalan Susu Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2010)“The diversity of macrozoobenthos in Sembilan Island Waters, subdistrict of Pangkalan Susu, District of Langkat, North Sumatera”, has been observed. The sample was taken from three stations of observation, nine replications ... -
Keanekaragaman Plankton di Perairan Pulau Kampai Kecamatan Pangkalan Susu Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2010)”Plankton Diversity of Sea Kampai Island, Subdistrict Pangkalan Susu, Regency Langkat, North Sumatera”, has been observed. This research was conducted by using Purpossive Random Sampling method to determine 3 stations ... -
Penapisan Fungi Penghasil Antibiotik dari Tanah Bangka dan Taman Wisata Alam Sibolangit serta Potensinya dalam Menghambat Beberapa Fungi Patogen Tanaman
(Universitas Sumatera Utara, 2011)A study on “ screening of soil fungi that produce antibiotic isolated from Bangka and Sibolangit Recreation Natural Park and their ability to inhibit plant phatogenic fungi” was conducted from May 2010 to January 2011 ... -
Jenis dan Komposisi Komunitas Amfibi di Taman Wisata Alam/Cagar Alam Sibolangit dan Desa Sembahe Kecamatan Sibolangit Kabupaten Deli Serdang Sumatera Utara
(Universitas Sumatera Utara, 2010)Research on the Species and Amphibian Community Composition in Nature Park/Nature Preserve (TWA/CA) Sibolangit and Sembahe Village, Sibolangit Subdistrict, Deli Serdang regency of North Sumatra have been carried out in ... -
Perubahan Morfologi Sel dan Kemampuan Fermentasi Saccharomyces Sp. Isolat Daging Buah Durian (Durio Zibethinus Murr.) yang Diradiasi Dengan Sinar Ultraviolet
(Universitas Sumatera Utara, 2010)The research of “The Effect of Ultraviolet Light to the Morfology Structure of Saccharomyces sp. Isolated from Durian (Durio zibethinus)” has been conducted from Mey 2009 to November 2009 at Genetics’ Laboratory and ... -
Pertubuhan Eksplan Kotileon Jeruk Keprok ( Citrus Nobilis Lour.) dengan Kultur in Vitro pada Media MS (Murahige & Skoog) dengan BAP (Benzyl Amino Purin)
(Universitas Sumatera Utara, 2010)Cotyledon culturing has been done in the Tissue Culture Laboratory, Department of Biology, Faculty of Mathematics and Science, University of North Sumatera. The tissue culturing was done using non-factorial Complete ...