Department of Biology: Recent submissions
Now showing items 481-500 of 1255
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Gambaran Histologis Testis Mencit (Mus Musculus L.) yang Mendapat Kombinasi Ekstrak Air Biji Pepaya (Carica Papaya L.) dan Testosteron Undekanoat (Tu)
(Universitas Sumatera Utara, 2012)Many traditional use of medicinal plants to treat different sort of disease, including fertility has done. This research observed the influence of papaya seed (Carica papaya L.) extract and Testosterone Undekanoat (TU) ... -
Studi Keanekaragaman Plankton di Perairan Danau Lau Kawar Desa Kuta Gugung Kecamatan Simpang Empat Kabupaten Karo
(Universitas Sumatera Utara, 2008)The aimed of this research were to investigate the plankton diversity in Lau Kawar Lake and to find the relation among the values of physics and chemical factors of water with plankton diversity index. This research ... -
Kultur in Vitro Bunga Pisang Barangan (Musa acuminata L.) pada Media MS dengan Berbagai Konsentrai BAP dan NAA
(Universitas Sumatera Utara, 2007)The research about “ In vitro culture of immature Barangan flower (Musa acuminata L.) in MS medium with various concentration of BAP and NAA” has been done in Tissue Culture Laboratory UPT BBI Agriculture Department ... -
Pengaruh Salinitas Air terhadap Tingkat Patogenitas Viral Nervous Necrosis pada Benih Kerapu Macan (Epinephelus Fuscoguttatus)
(Universitas Sumatera Utara, 2011)A study of the effect of water salinity to pathogenicity of viral nervous necrosis in seed tigers grouper (Epinephelus fuscoguttatus) was conducted from January 2011 to April 2011 at the Laboratory of Molecular Biology ... -
Keanekaragaman Makrozoobenthos di Hilir Sungai Padang Kecamatan Medang Deras Kabupaten Batubara
(Universitas Sumatera Utara, 2011)The diversity of Macrozoobenthic in Downstream of Padang River Subdistrict of Medang Deras Distrisct of Batubara, has been observed.The sample was taken from five stations of observation, fourteen replications were ... -
Uji Anti Mikroba Ekstrak Metanol Bunga Cengkeh terhadap Bakteri Penyebab Karies Gigi, Streptococcus mutans
(Universitas Sumatera Utara, 2009)The effect of anti microbial clove methanol extract activity on bacterial caused caries, Streptococcus mutans, has been conducted in Microbiology Laboratory, Biology Department, Faculty Of Mathematic and Natural Sciences, ... -
Keanekaragaman Plankton di Pesisir Perairan Kuala Tanjung Kecamatan Medang Deras Kabupaten Batubara
(Universitas Sumatera Utara, 2011)Have been done research with the title “Diversity Of Plankton in Kuala Tanjung Coastal Water District Medang Deras Regency Batubara”. This research is done with the method of purpossive Random Sampling that is determine ... -
Komposisi Komunitas Makrofauna Tanah untuk Memantau Kualitas Tanah secara Biologis pada Areal Perkebunan PTPN II Sampali Kecamatan Percut Sei Tuan
(Universitas Sumatera Utara, 2009)The research of Community Composition of Soil Macrofauna To Observe Of Soil Quality Biological In PTPN II Sampali Area In District Percut Sei Tuan has been done on February until March 2009. The Research location was ... -
Tumbuhan Obat di Suaka Margasatwa Siranggas Kabupaten Pakpak Bharat Sumatera Utara
(Universitas Sumatera Utara, 2012)Medicinal Plants in Siranggas Wildlife Area Pakpak Bharat Regency of North Sumatra has been studied from May to July 2011. Observation area of 20 x 50 m determined by purposive sampling with a total of 10 subplots 10 x ... -
Uji Antimikrobial Ekstrak Metanol Daun Jambu Biji Daging Putih dan Jambu Biji Daging Merah (Psidium guajava L.) terhadap Beberapa Spesies Bakteri Patogen
(Universitas Sumatera Utara, 2008)The study of antimicrobial methanolic extract of leaf white and red guava (Psidium guajava L.) to the growth of E. coli, S. aureus, S. dysenteriae, B. subtilis, S. marcescens was conducted in Microbiology Laboratory, ... -
Pertumbuhan dan Produktivitas Ulat Sutera Bombyx Mori L. (Lepidoptera : Bombicidae) yang Diberi Daun Murbei (Morus Sp.) yang Mengandung Vitamin B1
(Universitas Sumatera Utara, 2013)The effect of mulberry leaves that contain B1 on the growth and productivity of silkworm (Bombyx mori L.; Lepidoptera; Bombicidae) was conducted in the Laboratory of Genetics, Department of Biology, Faculty of Mathematics ... -
Hubungan Nilai Produktifitas Primer dengan Konsentrasi Klorofil a dan Faktor Fisik Kimia Air di Danau Toba Parapat, Kabupaten Simalungun
(Universitas Sumatera Utara, 2008)The aim of research was to investigate the value of primary productivity in Lake Toba as result of activity photosynthesis phytoplankton and its relation with the value of chlorophyll, physic and chemical factors of ... -
Laju Pertumbuhan Populasi Brachionus Plicatilis O. F. Muller Diperkaya Beberapa Variasi Dosis Scott’s Emulsion pada Kombinasi Kotoran Ayam Broiler, Pupuk Urea Dan Tsp
(Universitas Sumatera Utara, 2014)Research on, “The Growth Rate of Brachionus plicatilis O. F. Muller Population With The Addition Some Variation of Scott’s Emulsion Dose In Combination of Broiler Feses, Urea and TSP”, has been conducted in May until ... -
Isolasi dan Uji Antagonis Bakteri Endofit Akar dan Daun Kelapa Sawit (Elaeis guineensis Jacq.) terhadap Ganoderma boninense Pat.
(Universitas Sumatera Utara, 2008)A study of the antagonistic of endophytic bacteria isolated from roots and leaves of palm oil (Elaeis guineensis Jacq.) againts Ganoderma boninense Pat. has been done from July 2007 to January 2008 at Microbiology ... -
Kemampuan Bakteri Tanah dalam Menghambat Pertumbuhan Ganoderma Boninense dan Fusarium Oxysporum Secara In Vitro dan Uji Penghambatan Penyakit Layu Fusarium pada Benih Cabai Merah
(Universitas Sumatera Utara, 2011)A study on the in vitro ability of soil bacteria to inhibit the growth of Fusarium oxysporum and Ganoderma boninense and inhibition assay of Fusarium wilt disease of chili seeds has been done in the Laboratory of ... -
Efisiensi Konsumsi Pakan dan Laju Respirasi Ulat Sutera Bombyx Mori L. (Lepidoptera: Bombicidae) yang Diberi Daun Murbei (Morus Sp.) yang Mengandung Vitamin B1 (Tiamin)
(Universitas Sumatera Utara, 2013)The Effect of Mulberry (Morus sp.) Leave that Contain Vitamin B1 (Thiamine) on the Efficiency of Feed Consumption and Respiration Rate of Silkworm Bombyx mori L. (Lepidoptera: Bombicidae)” has been carried out in the ... -
Hubungan Produktivitas Primer Fitoplankton dengan Konsentrasi Klorofil A dan Faktor Fisik Kimia , di Danau Lut Tawar, Kecamatan Lut Tawar, Kota Takengon, Kabupaten Aceh Tengah
(Universitas Sumatera Utara, 2010)The aim of this research was to investigate the relation of primary productivity value with chlorophyll a and with chemical physics factor in Lut Tawar Lake. Primary productivity was photosynthesis activity that was done ... -
Keanekaragaman dan Distribusi Ikan di Perairan Pulau Kampai Kecamatan Pangkalan Susu Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2011)Research about “The Diversity and Distribution of Fishes at Kampai Island Waters, Pangkalan Susu District, Langka Residence, North Sumatera” was done at June 2010. Samples were taken from three stations and at each station ... -
Penghambatan Serangan Sclerotium rolfsii Penyebab Rebah Kecambah pada Kedelai dengan Bakteri Kitinolitik
(Universitas Sumatera Utara, 2013)A study about the inhibition of Sclerotium rolfsii causal of soybean damping off with chitinolytic bacteria had been done in Laboratory of Observation Pest and Disease UPT-BPTPH 1 and Laboratory of Microbiology, ... -
Jenis-Jenis Lumut Daun (MUSCI) di Kawasan Hutan Taman Nasional Gunung Leuser Desa Telagah Kabupaten Langkat Sumatera Utara.
(Universitas Sumatera Utara, 2012)Species of Musci in Gunung Leuser National Park Telagah Village Langkat Regency North Sumatra had been studied using Survey Methods from May to November 2011. There are 50 species of Musci recorded in the study area ...