Master Theses
Master Theses
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Now showing items 81-100 of 253
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Pengaruh Konsentrasi Nacl terhadap Perkecambahan Spora Fungi Mikoriza Arbuskula
(Universitas Sumatera Utara, 2009)A study on effect of salinity to arbuscular mycorhiza fungus spore germination was limited. Distribution of mycorhiza was limited by salinity. Salinity effect the mycorhiza Gigaspora margarita and ... -
Penggunaan beberapa Jenis Fungsi Untuk Meningkatkan Pertumbuhan Tanaman Karet (Hevea brasiliensis) di Tanah Gambut
(Universitas Sumatera Utara, 2009)Hevea brasiliensis cannot grow well in peat soil. One of the several ways that can be done to rehabilitate the peat soil is to use a biological agent (fungi). The purpose of this study using complete ... -
Peranan Makrozoobenthos sebagai Bioindikator Kualitas Air di Sungai Aek Pahu Hutamosu, Aek Pahu Tombak dan Batang Toru
(Universitas Sumatera Utara, 2013)The research about The Rule of Macrozoobenthos as Water Quality Bioindicator in Aek Pahu Hutamosu, Aek Pahu Tombak and Batang Toru River was done from January to March 2013. Samples were taken from four observation station ... -
Penapisan Bakteri Kitinolitik dari Limbah Udang yang Menghambat Pertumbuhan Beberapa Jamur Patogen
(Universitas Sumatera Utara, 2013)The use of microorganisms as biocontrol agents have been known to reduce soil pollution due to the use of chemical compounds. Among the microorganisms chitinolytic bacteria have been utilized as biocontrol agents to ... -
Analisis Kualitas Air dan Hubungannya dengan Keanekaragaman Vegetasi Akuatik di Perairan Balige Danau Toba
(Universitas Sumatera Utara, 2009)The analysis of water quality and the correlation with the aquatic vegetation diversity has been analyzed in August 2008 – March 2009 at 4 location in waters of Danau Toba, Balige. Research location determined ... -
Keanekaragaman dan Pola distribusi tumbuhan Paku di Hutan Wisata Alam Taman Eden Kabupaten Toba Samosir Provinsi Sumatera Utara
(Universitas Sumatera Utara, 2009)A research about Diversity and Distribution Type Pterydophyte in Hutan Wisata Alam Taman Eden Kabupaten Toba Samosir North Sumatra Province were conducted in December 2008 to February 2009. Sampling ... -
Isolasi Bakteri dan Uji Aktivitas Protease Termofilik dari Sumber Air Panas Sipoholon Tapanuli Utara Sumatera Utara
(Universitas Sumatera Utara, 2009)A study on isolation and activity assay of termophilic protease from hot spring of Sipoholon, of North Tapanuli has been done in Laboratory of Microbiology Department of Biology, Faculty of Mathematics and ... -
Hubungan Nilai Produktivitas Primer dengan Konsentrasi Klorofil a, dan Faktor Fisik Kimia di Perairan Danau Toba, Balige, Sumatera Utara
(Universitas Sumatera Utara, 2009)Mangatur Sitorus : Hubungan Nilai Produktivitas Primer Dengan Konsentrasi Klorofil a, Dan Faktor Fisik Kimia Di Perairan Danau Toba, Balige, Sumatera Utara, 2009 USU Repository © 2008 The ... -
Keanekaragaman Plankton dan Keterkaitannya dengan Kualitas Air di Parapat Danau Toba
(Universitas Sumatera Utara, 2008)The research about “The Diversity of Plankton and its Correlation to the Quality Water of Lake Toba, Parapat, has been done in January to March 2008. Samples were taken from three observation ... -
Struktur dan Komposisi Tumbuhan Anggrek di Hutan Wisata Taman Eden Kabupaten Toba Samosir Propinsi Sumatera Utara
(Universitas Sumatera Utara, 2009)The research was conducted in Eden Park forest, Toba Samosir Regency from December 2008 to February 2009. Research area was determined by using Purposive Sampling Method and data were collected with Quadrat Method on ... -
Keanekaragaman Piperaceae dan Rubiaceae di Taman Wisata Alam Deleng Lancuk Kabupaten Karo Sumatera Utara
(Universitas Sumatera Utara, 2008)The diversity research of Piperaceae and Rubiaceae in Deleng Lancuk Natural Park had been done on January 2008 untill March 2008. The location of this research is made purposively and divided into 5 based on the sum ... -
Analisis Kualitas Air dan Hubungannya dengan Keanekaragaman Vegetasi Akuatik di Perairan Parapat Danau Toba
(Universitas Sumatera Utara, 2008)The analysis of water quality and the correlation with the aquatic vegetation diversity has been analyzed in January 2008-April 2008. The method in determining the sample location is “Purpose Random ... -
Pengurangan Akumulasi Timbal (Pb) dengan Memanfaatkan Mikoriza Arbuskula dan Tanaman Belimbing Wuluh (Averrhoa Bilimbi) Jabon (Anthocephalus Cadamba) Petai (Parkia Speciosa)
(Universitas Sumatera Utara, 2016)The objective of this research was to determine the effect of vesicular arbuscular mycorrhiza on the accumulation of Pb in plant starfruit, jabon, and petai, to know the optimal dosage of vesicular arbuscular mycorrhiza ... -
Hubungan Antara Kualitas Air dengan Kebiasaan Makanan Ikan Batak (Tor Douronensis) di Perairan Sungai Asahan Sumatera Utara
(Universitas Sumatera Utara, 2013)The study of water quality relationship and food habits of batak fish (Tor douronensis) in Asahan River North Sumatra was conducted. Aims of this research are to understand the water quality of Asahan River, the food habits ... -
Keanekaragaman Fungi Mikoriza Arbuskula pada Berbagai Varietas Tanaman Kopi
(Universitas Sumatera Utara, 2014)A study on diversity of vesicular arbuscular mycorrhizal on coffee plants of PT.Wahana Graha Makmur, Sidiangkat, Sidikalang have been carried out. The objective of this research was to know spore density, degree of root ... -
Taksonomi dan Distribusi Balakka (Phyllanthus Emblica L.) di Sumatera Utara Bagian Selatan
(Universitas Sumatera Utara, 2015)The study to determine the taxonomy and distribution of indian gooseberry (Phyllanthus emblica L.) has been carried out in Southern part of North Sumatera from December 2013 until August 2014. Data was collected through ... -
Studi Tumbuhan Herba di Kawasan Hutan Sibayak I
(Universitas Sumatera Utara, 2011)Study of Herbaceous plants in Sibayak I forest Deli Serdang District had been studied from March to June 2011. Study site was settled using purposive sampling with 134 plot of 2 x 2 m size. There are 136 species of herbs ... -
Keanekaragaman Tegakan Hutan dan Potensi Kandungan Karbon di Hutan Aek Nauli Kabupaten Simalungun
(Universitas Sumatera Utara, 2011)This research was conducted at the forestry area of Aek Nauli regency of Simalungun on January of 2011. The location of research is chosen by using purposive sampling method. The data was collected by combination of path ... -
Komposisi dan Struktur Tumbuhan Anggrek di Hutan Aek Nauli Kabupaten Simalungun
(Universitas Sumatera Utara, 2011)The study of Composition and structure of Orchids at Aek Nauli Forest Simalungun regency was conducted from December 2010 to March 2011 by using Purposive Sampling Method and data was collected at five’s area at several ... -
Ekologi dan Distribusi Zingiberaceae di Kawasan Hutan Aek Nauli Kabupaten Simalungun
(Universitas Sumatera Utara, 2011)A research about Ecology and Distribution Zingiberaceae in Aek Nauli forest district of Simalungun were conducted from December 2010 to Maret 2011. The study site was determined Purposive Sampling Method and divided in to ...
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