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Sumatera utara
INDONESIA
Peronema Forestry Science Journal
Published by Universitas Sumatera Utara
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 304 Documents
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Uji Potensi Fungi Pelapuk Putih Pada Kayu Karet Lapuk (Hevea brasilliensis Muell. Arg) Sebagai Pendegradasi Lignin Test of Potential White Rot Fungi at Rotten Karet Wood (Hevea bresilliensis Muell. Arg) as degrading lignin Gusti Prabu Jaya P; Edy Batara Mulya Siregar; Nelly Anna
Peronema Forestry Science Journal Vol 4, No 2 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Lignin is a natural polymer and an important compound of plant cell wall constituent. The research objective to get white rot wood in the Rotten Karet Wood, measure the activity of lignin peroxidase at White Rot Fungi, and know the potential of White Rot Fungi for biopulping.  The samples taken at Karet land in Arboretum USU. The Bavendamm and lignolitic enzyme activities test found three species of fungus that came from genus Phanerochaete sp1, Phanerochaete sp2, dan Exidia sp. The highest activity of lignin peroxidase was produced by Phanerochaete sp2 isolate by the value of 0,466 U/ml. Key word : karet wood, white rot fungi, lignin peroxidase, bavendamm test.
Uji Potensi Fungi Pelapuk Putih Asal Batang Kayu Pinus (Pinus merkusii Jungh et de vriese) Sebagai Pendegradasi Lignin (Test of potential White Rot Fungi at Rotten Pine Wood (Pinus merkusii Jungh et de vriese ) as degrading lignin) Parlin Bastian Simanjuntak; Edy Batara Mulya Siregar; Nelly Anna
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Lignin is a natural compound of plant that has a function for plant cell wall constituent. In pulp industries, lignin is a compound which is hard to be degradad. The purpose of this research is to get white rot fungi in the rotten pine wood, to determine potential of white rot fungi in biopulping process which obtained by measuring the activity of enzyme Lignin Peroxidase (LiP) at white rot fumgi which is obtain from the rotten pine wood. The sample of the rotten pine wood taken from Taman Hutan Raya (Tahura) Berastagi. Bavendamm and ligninolitic enzyme activities test have found three spesies fungi which are in genus Trametes sp.1, Trametes sp.2, and Phanerochaete sp. The highest activity of enzyme lignin peroxidase was produced by Trametes sp.1 fungi by the value is 1,541 U/ml. Key word: White rot fungi, Pine wood, Bavendamm test, enzyme lignin peroxidase.
RESPON CYLINDROCLADIUM SP. TERHADAP FUNGISIDA BERBAHAN AKTIF MANCOZEB SECARA IN VITRO Pebrian Indra Risky Dalimunthe; Edy Batara Mulya Siregar; Nelly Anna
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Cylindrocladium sp. is one of the pathogens trigger dangerous diseases that blight the eucalyptus plant. Fungi is one of the pathogens that attack the breeding ground and nursery eucalyptus in various parts of the world, including Indonesia. Efforts to control its spread by means of direct control is by the use of fungicides. Fungicides are used in this research is a contact fungicide mancozeb 80% active ingredient. The study aims to measure the growth of the colonies, the relative constraints, the density of spores and hyphae shape changes Cylindrocladium sp. after treated with 0, 0.4, 0.8, 1.2 and 1.6 mg / ml. The sample used was taken from the collection of fungi in Forestry Biotechnology Laboratory. The research was conducted in February 2015 until April 2015 at the Biotechnology Laboratory of Forestry, Department of Forestry and in the Laboratory of Disease Study Program Plant Pests and Diseases, Faculty of Agriculture, University of North Sumatra. Results of the study are significant response at each concentration fungicide mancozeb. Response significant effect starting from the 12th day until the 16th day of observation. The response of the real effect is diameter growth, barriers relative density of spores. Besides treatment causes swelling and breakdown of the structure of hyphae. Key Words: Response, In Vitro, Cylindrocladium sp., Fungicide Mancozeb 80%  WP
INVENTARISASI TUMBUHAN ANGGREK DI KAWASAN SUAKA MARGASATWA SIRANGGAS KABUPATEN PAKPAK BHARAT (INVENTORY OF ORCHIDS IN SIRANGGAS WILDLIFE PAKPAK BHARAT) Dasma Banurea; Yunasfi Yunasfi; Pindi Patana
Peronema Forestry Science Journal Vol 4, No 2 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Indonesia's tropical forests is one of the richest in natural resources of orchids. North Sumatra is a suitable place for growing orchids. This study aims to inventory the orchids based on altitude in Siranggas Wildlife Kecupak I Village, Pergetteng-getteng Sengkut Subdistrick, Pakpak Bharat. Plots were determined by purposive sampling. The Observation of vegetation used line plot transect which divided in 3 locations with different altitude interval : 800 – 900 meter above sea level (m asl), 1.000 – 1.100 m asl and  1.200 – 1.300 m asl, measuring plot 20 m x 100 m, divided in to 5 subplots measuring 20 m x 20 m. The result found 54 species of orchids at Siranggas Wildlife from 21 genus, which there were 15 species of terrestrial orchids, 37 species of epiphytic orchids and 2 species os saprophyte. The highest of important value index (IVI) was 41,722% on Dendrobium tertraedre and the lowest was 0,884% on Vanilla sp. 1, Vanilla sp. 3 and Phaius sp 1. Keywords: Orchid, Inventory, Siranggas Wildlife
AKTIVITAS MIKROORGANISME TANAH PADA TANAH BEKAS KEBAKARAN HUTAN DI KABUPATEN SAMOSIR Agree Hutami Sinaga; Deni Elfiati; Delvian Delvian
Peronema Forestry Science Journal Vol 4, No 1 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Forest fire affect chemical, physical and biological properties of the soils. In the biological properties of the soil, forest fire also affects number of microorganisms and activity of microorganisms. The purpose of this research is calculate the value of soil microorganism with various periods of forest fires. The measure of the activities of microorganism using jar and titrimetri methods.The result of this research showed that value of  respiration in  unburn soil is 11,99. Value of respiration from forest fire soil in 2010 is 6,43. Value of respiration from  forest fire soil in 2011 is 10,28. Value of respiration from forest fire soil in 2012 is 16,28. Value of respiration from forest fire soil in 2013 is 11,14. Value of respiration from forest fire soil in 2014 is 8,14. Activity of microorganisms is almost the same between the occurrence of fire with soil unburn. Keywords: forest fire, soil microorganism, activity of microorganism
KEBERADAAN FUNGI PELARUT FOSFAT PADA TANAH BEKAS KEBAKARAN HUTAN DI KABUPATEN SAMOSIR Wika Astuti Sagala; Deni Elfiati; Delvian Delvian
Peronema Forestry Science Journal Vol 4, No 2 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The forest fire effect chemical, psysical and biological propesties of the soil. In the biological of soil, forest fire also effect the existence of phosphates solubilizing fungi. This research was conducted to determine the presence of Phosphates Solubilizing Fungi  in the former soil of fired forest by the time of the fire in Samosir Regency. Soil samples taken from former soil of fired forest and unfire forest at a dept 0 – 20 cm around rhizosfir. Soil analysis carried out in Research and Technology of University of North Sumatera along with isolation and identification phosphates solubilizing fungi at the Laboratory Soil Biology Agroekoteknologi Studies Program Faculty of Agriculture, University of North Sumatera. The result showed that there were similitary and differences phosphates solubilizing fungi in former soil of fired forest and unfire forest. Phosphates solubilizing fungi consisting of 2 fungi genus there are Aspergillus and Penicillium. Keywords: Forest Fire, Phosphates Solubilizing Fungi
STATUS DAN KENEKARAGAMAN FUNGI MIKORIZA ARBUSKULA (FMA) PADA TANAH BEKAS KEBAKARAN HUTAN DI KABUPATEN SAMOSIR Lusi Astri Simamora; Deni Elfiati; Delvian Delvian
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Arbuscular Mycorrhizal Fungi (AMF) are cosmopolitan is almost found in a variety of ecosystems. Forest fires influence the biological properties of the soil, especially AMF. This research aims to study the status and diversity of AMF in the former soil of forest fires. Samples of soil and roots of plants was taken from the location of the fire in separate incidents during the 5 period and location unburn. Parameters observed that the degree of root infection, spores density and identification of the type of spores. Identification of mycorrhizae conducted at the Laboratory of Soil Biology, Faculty of Agriculture, University of North Sumatra, begin in May until September 2014. Morphology characteristics used to identify the type of AMF is a form of cell wall thickness, presence or absence of substanding hyphae, surface smoothness and spores  reaction to melzers. The results show that an increase in the average density of spores from the field and the results of trapping, for the average percentage of AMF colonization in the roots of plants at 50,65% include grade 3 and 4 or high categories. Found 2 genus, namely Genus Acaulospora and Genus Glomus. Of the field found as many as 35types of spores and trapping results are found as many as 40 types of spores. Key words: Arbuscular Mycorrhizal Fungi (AMF), Forest fire
Keanekaragaman Mikoriza Arbuskula (FMA) pada Beberapa Tegakan di Areal Arboretum Universitas Sumatera Utara Ria Pertiwi Sianturi; Delvian Delvian; Deni Elfiati
Peronema Forestry Science Journal Vol 4, No 2 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Existence and Status of Arbuscular Mycorrhizae Fungi is affected by biotic and abiotic factor. The goal of this research is to know diversity of Arbuskular Mycorrhiza Underneath of durian (Durio zibethinus), kemiri (Aleurithes moluccana), asam gelugur (Garcinia atroviridis), and karet (Hevea brasiliensis). Soil sample has been taken from Arboretum Universitas Sumatera Utara under of four tree of MPTS. This research use soil separating method to obtain spores and root coloring method to find out root colonization. The obtained an average spore density on kemiri is 42 spores/50 g soil, durian is 42 spores/50 g soil, karet is 50 spores/50 g soil and asam gelugur is 62 spores/50 g soil. The result shows on four tree of MPTS obtained 23 spores types of Glomus and 8 spores types of Acaulospore with colonization percentage of durianis 25,6%, kemiri is 43,86%, Karet is 49,6% and Asam Gelugur is 50,5%. Key word: FMA, durian, kemiri, asam gelugur, karet, arboretum
INVENTARISASI TANAMAN MPTS (MULTY PURPOSE TREE SPECIES) DI DAERAH TANGKAPAN AIR DANAU TOBA PROVINSI SUMATERA UTARA Samuel Marpaung; Afifuddin Dalimunthe; Budi Utomo
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

This research aims to determine the types of MPTS, silvicultural techniques, plant benefits, the role of plant MPTS and peoples perception if the plant MPTS used as plant rehabilitation. This research was conducted in Haranggaol Subdistric and Merek Subdistric at Province North Sumatera during four month from September until December. The objective of research is MPTS plant species be found in the catchment area Toba Lake. The data collection of secondary data, primary data, MPTS plant identification, literature reviews, interviews and direct observation in the field. The results research that be found 10 species of MPTS plant in the catchment area Toba Lake. MPTS is very beneficial for the people living in the Toba Lake catchment area both ecologically and economically. Peoples approved if the plant MPTS used as plant rehabilitation. Key word : Variaty, Deployment, Potential, Benefit, Plant Rehabilitation.
Pengaruh Pemberian Fungi Mikoriza Arbuskula (FMA) Terhadap Kandungan Logam Timbal (Pb) pada Tanaman Sengon (Paraserianthes falcataria) Juneith O S Nadeak; Delvian Delvian; Deni Elfiati
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Plumbum (Pb) is an environmental contaminant that risk for human’s health, reducing soil fungtion and productivity and damage for plants. Therefore, remediation is need to do such as bioremediation using AMF and sengon as a host. A research was conducted to knowing the effect of the addition of AMF for Pb content on Sengon in green house of Agriculture USU. Analyze of Pb metal was done at Research Laboratory of Pharmacy USU on October 2014- February 2015 using faktorial completely randomize design with two faktors, i.e Pb addition (0 and 400 ppm) and doses of mycorrhiza inoculation (0, 25 and 50 g). Parameters measured were root colonization, plant height, stem diameter, root drying weight, crown drying weight, crown root ratio, root Pb content, crown Pb content and soil Pb content after harvest.The results showed that Pb addition affected significantly on plant height, Pb content on root, crown and soil after harvesting parameter. Inoculation of mycorrhiza affected significantly on plant height, stem diameter, drying weight of root and crown. Inoculation of mycorrhiza did not significant on Pb content but capable to increasing Pb content on root, crown and soil. The interaction of the two faktors did not affected significantly on all parameters. Key words: Sengon, Pb, AMF

Page 13 of 31 | Total Record : 304

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