Edy Batara Mulya Siregar
Fakultas Kehutanan Universitas Sumatera Utara Jalan Tri Dharma Ujung Kampus USU Medan

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UJI INFEKSI Cylindrocladium sp. PADA KLON HIBRID Eucalyptus grandis x Eucalyptus urophylla (INFECTION TEST Cylindrocladium sp. ON HYBRID CLONES OF Eucalyptus grandis x Eucalyptus urophylla) Junita Herawati Hutasuhut; Nelly Anna; Edy Batara Mulya Siregar
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Eucalyptus leaf sp. is a fast-growing plant species as raw material pulp industry at large.  At the time of this plant breeding susceptible to deases. One is a deseases caused by a fungal leaf Cylindrocladium sp. The objectives of this research aims to characterize the symptoms of foliar diseases and measure the intensity and widespread attacks caused by Cylindrocladium sp. the clone IND 47, IND 61 and IND 66. Infection done bye spraying inoculants fungi in this experiment used three clone of plant E. grandis x E. urophylla age of two month from the observation of the symptoms of the diseases symptoms appear, calculated intensity and widespread attacks. The results showed symptoms on leaves caused by infection Cylindrocladium sp. the three clones have the same symptoms are red spots on the leaf surface and then develop into red-brown spots. In measuring the intensity of the attacks and extensive third attack resisten clones are clones Keywords: Cylindrocladium sp., Hybrid Clones of Eucalyptus, Infection Test
Uji Infeksi Cylindrocladium sp pada Tiga Klon Hibrid Eucalyptus grandis x eucalyptus pellita Ervan F. Hutajulu; Nelly Anna; Edy Batara Mulya Siregar
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

One of the diseases that attack in the Eucalyptus nursery is Cylindrocladium causing Cylindrocladium foliar spots and foliar blight disease. Cylindrocladium found in eucalyptus nurseries PT Toba Pulp Lestari . According Sembiring (2008) research, Cylindrocladium fungal virulence is the highest of the pathogen found in nurseries . This study aimed to characterize the symptoms of foliar diseases caused by Cylindrocladium on the derived crosses hybrid clones of the type of Eucalyptus, Eucalyptus grandis x Eucalyptus pellita and measure the level of the intensity of the attack, the extent of the attack, as well as the reaction of plants (resistance) of the hybrid clones of Eucalyptus grandis x E. pellita. Infection is done by spraying inoculants fungi on leaves of three clones seedling of E. grandis x E. pellita age of two months, Clone IND 32, Clone IND 33 and Clone IND 45. The symptoms of infection that appearon leaves then reisolated by the method of Koch's postulates. Symptoms caused by infection Cylindrocladium on E. grandis x E. pellita leaves is blight disease. Symptoms begin with yellowish brown spots and will be widened (necrotic) then continue in severe leaf tissue death. The  incubation period for infection of Cylindrocladium faster seen in clone IND 45, but the pace of progress has been slow. In clone IND 32 and IND 33 the incubation period of infection longer appear, but the pace of progress are most intense. Cylindrocladium infection does not affect the growth (resistance) of E. grandis x E. pellita seed age of two months. Key Words: Eucalyptus sp, Cylindrocladium sp, Infection Test, Leave Blight Disease
UJI INFEKSI Phaeophleospora spp. PADA KLON HIBRID Eucalyptus grandis x Eucalyptus urophylla Paulus Stefan S. N; Nelly Anna; Edy Batara Mulya Siregar
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Eucalyptus is a species that widely used in pulping industry. Phaeophleospora is one of the pathogens that attack the leaves of young Eucalyptus plant. The purposes of this research were to characterize the leaf disease symptoms and to measure disease severity and disease incidence caused by Phaeophleospora spp. on two-month-old IND 47, IND 61, dan IND 66 Eucalyptus grandis x Eucalyptus urophylla hybrid clones. Inoculation was implemented with spray method. The leaves symptoms caused by Phaeophleospora showed the same symptoms on clones IND 47, IND 61, and IND 66. The early symptoms were the yellow dots on the upperside of the leaves and then developed into spots. The advanced symptoms were reddish spots on the upperside of the leaves and black spores on the underside of the leaves. Three clones were classified as resistant in disease severity measurement, meanwhile in disease incidence measurement, three clones were classified as moderately resistant. Keywords : Phaeophleospora, infection test, symptoms, resistant
Pengaruh Konsentrasi dan Frekuensi Aplikasi Pupuk Daun Cair Terhadap Pertumbuhan Bibit Aquilaria malaccencis Lamk. Sri Wulandari; Nelly Anna; Edy Batara Mulya Siregar
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Fertilizationis a means or method used for fertilizer through the leaves and plant part slain.The purpose of this study was to determine the frequency of fertilization and foliar fertilizer concentration is best for seedling growth aloes (A. malaccensisLamk.). The samples used were aloe plant seeds that have been aged 3 months were taken from CV. Earth Partners II, Land of a Thousand Village, city Binjai, North Sumatra. Nursery heldon the 4th floor of buildings Forestry Faculty of Agriculture, University of North Sumatra, which was conducted in November-January2013. The results showed that the frequency of the treatment of liquid foliar fertilizer application significantly affected the height and number of leaves.Treatment of liquid foliar fertilizer concentration significantly affected the number of leaves.The interaction frequency and concentration of liquid foliar fertilizer application significantly affected height and number of leaves.   Keywords: fertilization, agarwood, frequency, concentration
UJI INFEKSI Cylindrocladium sp., TERHADAP KLON HIBRIDA TURUNAN Eucalyptus grandis x Eucalyptus urophylla Berlianta R. Siallagan; Nelly Anna; Edy Batara Mulya Siregar
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 diseases caused on leaf. Eucalyptus sp. is a plant that is used in the pulp industry. The objective of this study  to characterize the symptoms of foliar diseases and measure the desiases severity and diseases incidence on clone IND 65, IND 68 and IND 69. The infection of Cylindrocladium sp. was implemented with spraying method. Cylindrocladium sp., showed the symptoms was  redness brown spots and patches of grayish. Based on the diseases severity criteria three clones classifield as resistant clones. Based on the diseases incidence criteria of IND 65, IND 68  were classified as resistant and  IND 69 quite a bit resistant.Key words: Cylindrocladium sp., Eucalyptus sp.,  Infection test.
Reisolasi dan Identifikasi Fungi pada Batang Gaharu (Aquilaria malaccencis Lamk.) Hasil Inokulasi. Lisdayani Lisdayani; Nelly Anna; Edy Batara Mulya Siregar
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Gubal of Agarwood is the infection of the microorganism and one of commonly used is Fusarium sp. The purpose of this research was to determine the presence of Fusarium sp consistency in agarwood (Aquilaria malaccencis Lamk.) which has been in the fungal inoculation.Sample which to used is stem which is taken away from Penungkiran Durin Jangah village, Pancur Batu. Isolation and identifying has been done in Forest Biotechnology laboraturium of Agriculture faculty University of Sumatera Utara, which is conducted from April – October 2013.  The result of this research showed that there are fifteen isolat of  fungi from the stem, that are five isolat Fusarim sp, two isolat Acremonium sp, two isolat Alternaria alternaria, one isolat Nigrospora sphaerica, two isolat Scopulariopsis sp, two isolat Cladosporium sp, one isolat Scytalidium lignicola, one isolat Mucor sp. Consistency Fusarium sp are superior on top stem and all of the part of the stem can be found Fusarium sp.Keywords: fungi, Agarwood, Reisolation, consistency
UJI POTENSI FUNGI PELAPUK PUTIH ASAL BATANG KAYU EUKALIPTUS (Eucalyptus grandis ) SEBAGAI PENDEGRADASI LIGNIN Gepsy Onardo Silaban; Edy Batara Mulya Siregar; Lutfhi Hakim
Peronema Forestry Science Journal Vol 5, No 3 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Lignin is a polymer which has heterogen and complex structure and composed of alcohol coniferil, alcohol sinaphil, and alcohol kumaril so that hard to change. This research aimed to get white rot fungi isolat at eucalyptus wood and measure the ability of Lignin Peroksidase Enzim (LiP) of white rot fungi from eucalyptus wood as degrading lignin. Sample was get from Kesatuan Pengelolaan Hutan Lindung Tobasa area, North Sumatera. Type of white rot fungi originated from Eucalyptus grandis was Phanerochaete sp.1, Phanerochaete sp.2, and Exidia sp. Based on mend of LiP activity result, Exidia sp was the most potential for biopulping because it has highest activity point about 0,037 (U/MI). Key word : lignin peroksidase, eucalyptus wood, Bavendamm test, LiP test
RESPON CYLINDROCLADIUM SP. TERHADAP FUNGISIDA BERBAHAN AKTIF METIRAM SECARA IN VITRO Sri Martina Suseno; Edy Batara Mulya Siregar; Ridwanti Batubara
Peronema Forestry Science Journal Vol 5, No 3 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Cylindrocladium sp. is a pathogen cause disease that attack eucalyptus and  it  was the highest type of disease that attack eucalyptus in toba pulp lestari. Fungicide was used to eradicate and prevent the growth of pathogens. One of the fungicide which  used was systemic fungicide with active substance metiram 70 %. The purpose of this study was to measure the area, diameter, density of the spore ,and to characterize the hyphae form of Cylindrocladium sp after being treated metiram 70 % in vitro in different concentrations. Sample that used taken from cylindrocladium collection from previous research. The result of this study showed that the most efective concentration of fungicide treatment in inhibiting growth and development area of cylindocladium sp was treatment 2,0 mg/ml. In observation of spore density and hyphae structures of cylindrocladium sp, the fungicide that given was able to give tangible effect but in observation of relative inhibiton, concentration of fungicide gave intangible effect in providing inhibition to pathogen of cylindrocladium sp.Keywords: eucalyptus, cylindrocladium sp, fungicide, metiram, in vitro
UJI POTENSI FUNGI PELAPUK PUTIH DARI BATANG KAYU EUKALIPTUS (Eucalyptus deglupta) SEBAGAI PENDEGRADASI LIGNIN Ridho Perdana Ompusunggu; Edy Batara Mulya Siregar; Lutfhi Hakim
Peronema Forestry Science Journal Vol 5, No 3 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Lignin is a heterogeneous polymer and complex structure consisting of koniferil alcohol, sinaphil alcohol, and kumaril alcohol making it difficult to overhauled. The complex structure of lignin with high molecular weight and insoluble in water makes lignin difficult to degrade. The purpose of this research is to get white rot fungi in biopulping process by measuring the activity of Lignin Peroxidase Enzime (LiP) at white rot fungi which is obtained. The sample of rotten eucalyptus wood taken from Taman Hutan Raya (Tahura) Berastagi. Bavendamm test have found three genus of fungi which are Phanerochaete sp. 1, Phanerochaete sp. 2, Trametes sp. The highest activity of lignin peroxidase enzyme was produced by Phanerochaete sp. 2. Key words: Eucalyptus wood, White rot fungi, Bavendamm test, lignin peroxidase enzyme
Respon Phaeophleospora sp. Terhadap Fungisida Berbahan Aktif Metiram Secara in Vitro Josua M Sitanggang; Edy Batara Mulya Siregar; Ridwanti Batubara
Peronema Forestry Science Journal Vol 5, No 3 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (611.751 KB)

Abstract

Phaeophleospora sp is one of diseases which attack eucalyptus plant particulaily on eucalyptus nursery. This disease has been spread almost in the whole world. North Sumatera Control of the disease itself still use a fungicide and one of them is the fungicide active ingredient Metiram 70%. The purpose of this reseaech is to know the response of Phaeophleospora with fungicide Metiram substance 70% treatment with 0,4 ,0,8 ,1,2 and 1,6 mg/ml as concentrate. Response which measured was colony growth (wide, diameter, spora density, and change that happened to hifa). Research conducted at Forest Biothechnology Laboratory and Pest Plant Pathology Laboratory, Agriculture Faculty, University of North Sumatera. Used general linear non factorial with five times repetitions.        The 70% metiram treatment in 0,4, 0,8, 1,2 and 1,6 mg/ml  significant to the growth (wide, diameter, barriers relative and spore density) and also caused swelling on hyphae and change of form, tekstur and the color of colony Phaeophleospora sp. in vitro.Keywords : Phaeophleospora sp, Response In Vitro, Metiram 70%