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PENGARUH KONSENTRASI DAN LAMA PERENDAMAN BAHAN PENGAWET DAUN TEMBELEKAN (Lantana camara L.) PADA KAYU BAYUR (Pterospermum sp.) TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp.) Salmayanti, Salmayanti; Ariyanti, Ariyanti; Hapid, Abdul
Warta Rimba Vol 1, No 1 (2013)
Publisher : Warta Rimba

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There are about Â± 4.000 wood species in Indonesia. In small amount of that woods were categorized as durable wood (Class I and II) while mostly (80-85%) were categorized non-durable wood (Class III to V). This study was aimed to determine the effects of Lantana camara L. leaves extracts as preservation material of Pterospermum sp wood on the Coptotermes sp. attacks. The experiment was conducted in the laboratory of Forestry science, Forestry Faculty, Tadulako University, from May to June 2013. The study was using completely randomized design with pattern. The treatment of study was applying two factors. First, concentration of L.camara L. extracts with three levels, namely ;9,09 g (K1), 13,04 g (K2), and 16,66 g (K3). Second, Dipping time with three levels, namely: 1 day (L1), 3 days (L3), and 5 days (L5). Data was analyzed by using analysis (Anova).The results showed that water contents and density of Pterospermum sp. woods was 8,37% and 0,321 g/cmÂ³, respectively. Hence, the highest weight loss was achieved by K1L1 combination treatment (9,99%) while the lowest was achieved by K3L5 combination treatment (8,93%). Generally, concentration of L.camara L. and dipping time extracts did not affect significantly the weight loss of Pterospermum sp woods. Keywords: Concentration, Dipping, Lantana camara L., Pterospermum sp., Coptotermes sp.

PENGARUH KONSENTRASI DAN LAMA PERENDAMAN KAYU SENGON (Paraserianthes falcataria L. Nielsen) DALAM EKSTRAK DAUN SIRSAK (Annona muricata L.) TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp.) Ardiansa, Budi; Ariyanti, Ariyanti; Hapid, Abdul
Warta Rimba Vol 2, No 1 (2014)
Publisher : Warta Rimba

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Wood has many contribution for life. It can be useful for bueldings, huose ware, and for other using. The use of wood are followed by huma needs for manufactured wood in creasingly, while long life wood tend to be more scarce and higher in price. This research aims to know the influence of the concentration and the immersion time for sengon wood treated in extracted soursop leaf to defence from subterranean termite. This research was conducted in both forestry Laboratorium, Departement and faculty of forestry, University of Tadulako and in rural of Baiya, Distict of Tawaely. Starting from Desember 2013 till Februari 2014. This research used a complete randomized factorial design. The first factor was the concentration of extracted soursop leaf (A) was 4.76% (A1), 13.04% (A2) and 16.66% (A3). The second factor was the immersion time for sengon wood treated in extracted soursop leaf (B) was 5 days (B1), 10 days (B2), and 15 days (B3). The results show that the highest of losing weight is in the control (A0B1) with 3.3%, and the lowest of losing weight is in the concentration of 150g with 10 days immersion (A1B2) with 1.21%. The concentration of extracted soursop leaf and the immertion time of sengon wood did not significantly influence to the lose of weight in tested sample. Keywords:Â Concentration,Â Dipping,Â ParaserianthesÂ falcataria L.Â Nielsen,Â AnnonaÂ muricata L, Coptotermes sp.

RETENSI BAHAN PENGAWET EKSTRAK DAUN TEMBELEKAN (Lantana camara L) PADA BEBERAPA JENIS KAYU DAN EFEKTIFITASNYA TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp.) Riska, Riska; Erniwati, Erniwati; Hapid, Abdul
Warta Rimba Vol 2, No 2 (2014)
Publisher : Warta Rimba

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High-grade durable wood could not be longer to meet the various needs, this caused by limited and the more expensive price, so it must use low grade durable wood. The use of low grade durable wood should be followed by the wood preservation process. This study aims to determine the preservative retention of leaves tembelekan (Lantana camara L) on bayur (Pterospermum sp), benuang (Octomeles sumatrana Miq) and durian (Durio zibethinzs) and its effectiveness against subterranean termites (Coptotermes sp), attack. It was conducted at the Laboratory of Agrotechnology, Faculty of Agriculture, University Tadulako in March to june 2014. Testing Subterranean termites (Coptotermes sp) test was carried out at the Maku Village, District of Dolo, Sigi Regency, Central Sulawesi, using a completely randomized design (CRD), with treatment of different wood species and 3 days soaking duration at a concentration of 1% preservative with 6 replications. The results show the moisture content of bayur, benuang and durian woods are 13,10%, 10,81% and 11,35% respectively. The wood densiy of bayur 0,480g/cm3, benuang 0,277 g/cm3 and durian 0,402g/cm3 and the highest retention values is found at wood of durian 59,09 g/cm3 and the highest retention values is at bayur 41,67 g/cm3. In addition, the highest weeight loss (leas effectiveness) of 15,02% on the wood of bayur (control) and the lowest (highest Effectiveness) on wood of benuang 0,72%. Key words: Leaf extract of tembelekan, Lantana camara L, Octomeles sumatrana Miq, Pterospermum sp, durio sibethinzs

EFEKTIVITAS BAHAN PENGAWET ALAMI DARI TANAMAN TEMBELEKAN (Lantana camara L) PADA BEBERAPA JENIS KAYU TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp.) Safitri, Risky; Erniwati, Erniwati; Hapid, Abdul
Warta Rimba Vol 2, No 2 (2014)
Publisher : Warta Rimba

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Many favorable properties of wood are available in almost all parts of the world, easily obtained in different shapes and sizes, relatively easy to process, as well as very decorative appearance. However, wood also has a weakness that could be damaged by a variety of factors either biological, physical, mechanical or chemical. In reality, the main factors causing damage to the wood are fungi, bacteria, insects and marine animals (marine borer). The organisms might damage the wood because they make as a shelter or as feed. Therefore, there should be conducted wood preservation to overcome the unfavorable properties of the woods. Wood preservation aims to extend the use of low-class durability of timber species such as Bayur (Pterospermum sp), Durian (Durio zibethinus) and Benuang (Octomeles sumatrana Miq). This study aimed at determining the effectiveness of a natural preservative tembelekan (Lantana camara L). The research was conducted at the Forestry Sciences Laboratory, Department of Forestry, Forestry Faculty, Tadulako University and Talise Mantikulore Sub-district, started from May to July 2013. The study was designed with the method of completely randomized design (CRD) with three wood species treatment, namely bayur, durian and benuang. Each was preserved with a natural preservatives of tembelekan extract with a concentraation of 13,04%. There were 10 samples of each type of wood, consisting of 5 test samples preserved and 5 controls (without preserrvatives). There were 30 test samples. The parameters observed were preservative effectiveness of the sample weight after feeding on soil termites. The study shows that highest natural preservative effectiveness on benuang wood was preserved with the sample weight loss of 2,25% and the lowest on bayur wood was preserved with the sample weight loss of 3,47% when they were compared with the control sample (without preservative). Using tembelekan extract might increase wood resistance to soil termite attacks. Keywords: Captotermes sp, Durio zibethinus, Lantana camara L, Octomeles sumatrana Miq, tembelekan.

PENGARUH KONSENTRASI DAN LAMA PERENDAMAN BAHAN PENGAWET DAUN TEMBELEKAN (Lantana camara L.) PADA KAYU BAYUR (Pterospermum sp.) TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp.) Salmayanti, Salmayanti; Ariyanti, Ariyanti; Hapid, Abdul
Jurnal Warta Rimba Vol 1, No 1 (2013)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (401.991 KB)

There are about Â± 4.000 wood species in Indonesia. In small amount of that woods were categorized as durable wood (Class I and II) while mostly (80-85%) were categorized non-durable wood (Class III to V). This study was aimed to determine the effects of Lantana camara L. leaves extracts as preservation material of Pterospermum sp wood on the Coptotermes sp. attacks. The experiment was conducted in the laboratory of Forestry science, Forestry Faculty, Tadulako University, from May to June 2013. The study was using completely randomized design with pattern. The treatment of study was applying two factors. First, concentration of L.camara L. extracts with three levels, namely ;9,09 g (K1), 13,04 g (K2), and 16,66 g (K3). Second, Dipping time with three levels, namely: 1 day (L1), 3 days (L3), and 5 days (L5). Data was analyzed by using analysis (Anova).The results showed that water contents and density of Pterospermum sp. woods was 8,37% and 0,321 g/cmÂ³, respectively. Hence, the highest weight loss was achieved by K1L1 combination treatment (9,99%) while the lowest was achieved by K3L5 combination treatment (8,93%). Generally, concentration of L.camara L. and dipping time extracts did not affect significantly the weight loss of Pterospermum sp woods. Keywords: Concentration, Dipping, Lantana camara L., Pterospermum sp., Coptotermes sp.

VARIASI SIFAT FISIKA KAYU KEMIRI (Aleurites moluccana) BERDASARKAN ARAH AKSIAL Simangunsong, Arnita Sari; Hapid, Abdul; Muthmainnah, Muthmainnah
Jurnal Warta Rimba Vol 4, No 1 (2016)
Publisher : Universitas Tadulako

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chemical characters were factors as base in choosing wood. Besides knowledge about base characters, wood possessed varies characters even in one tree. This research aimed to find out the physical character that covered water content, density, and dimension change of candlenut wood (Aleurites moluccana) based on axial direction. The research was conducted on May up to the month of July 2014. In Agrotechnology, Forestry Faculty, Tadulako University, Palu. The wood that used as sample was one which about 10 years old with 39 cm diameter and 20 m tall that derived from Ranteleda village, Palolo, Sigi District. The research applied complete random design (Rancangan acak lengkap (RAL) with 3 treatments (butt, middle, top). The test of the sample was based on British Standart 373 each 126,808%, 127,367%, 145,213% and the average of dry air on butt, middle and top were 12,78%, 14,11%, and 12,35%. The rate of wet density was 0,339, dry air density was 0,345 and oven dry density was 0,354. The rate of longitudinal, tangential and radial diminution from wet to dry air was 0,71%, 1,909%, 1,808% and from wet to oven dry was 0,362%, 4,086%, 3,618%. The rate of longitudinal, tangential, and radial expansion from oven dry to wet was 0,107%, 3,491 %, 3,111% Key words: Water Content, Density, Dimension Changes.

BIOMASSA DAN KARBON POHON DI SEKITAR DANAU TAMBING PADA KAWASAN TAMAN NASIONAL LORE LINDU DESA SEDOA KECAMATAN LORE UTARA KABUPATEN POSO Marjan, Marjan; Wardah, Wardah; Hapid, Abdul
Jurnal Warta Rimba Vol 4, No 1 (2016)
Publisher : Universitas Tadulako

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Forest is an absorber of carbon that began to be a spotlight when the earth facing greenhouse effect. The greenhouse effect can be an increase of air temperature or commonly named global warming. The global warming is caused by the concentration improvement of the greenhouse in atmosphere where the improvement affects the change of radiation balanced so that the earth temperature increase. This research aims at identifying the number of biomass and tree carbon around Tambing Lake in Lore Lindu National Park. This research was conducted in Tambing Lake area in Lore Lindu National Park Sedoa Village, Lore Utara Sub-district Poso Regency for three months started from February to April 2014. The estimation of tree biomass is using indirect method or allometric equation built in TNLL area. The result of this research revealed that the total of biomass on tree diameter â‰¥ 30 cm on the lake buffer is 653 ton/ha and 72 ton/ha for diameter tree â‰¤ 5 cm, for diameter tree â‰¥ 30 cm outside lake buffer is 793 ton/ha and 120 ton/ha to diameter â‰¤ 5 cm. While the total content of carbon inside lake buffer to diameter tree â‰¥ 30 cm is 286 ton/ha and to diameter tree â‰¤ 5 cm is 32 ton/ha. The total content of carbon outside the lake buffer to diameter tree â‰¥ 30 cm is 356 ton/ha and to diameter tree â‰¤ 5 cm is 54 ton/ha. The total average of tree biomass around Tambing Lake is 810 ton/ha and the average of tree carbon is 364,5 ton/ha.Key words: Biomass, Carbon, Tree, Tambing Lake

PENGARUH KONSENTRASI DAN LAMA PERENDAMAN KAYU SENGON (Paraserianthes falcataria L. Nielsen) DALAM EKSTRAK DAUN SIRSAK (Annona muricata L.) TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp.) Ardiansa, Budi; Ariyanti, Ariyanti; Hapid, Abdul
Jurnal Warta Rimba Vol 2, No 1 (2014)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.726 KB)

Wood has many contribution for life. It can be useful for bueldings, huose ware, and for other using. The use of wood are followed by huma needs for manufactured wood in creasingly, while long life wood tend to be more scarce and higher in price. This research aims to know the influence of the concentration and the immersion time for sengon wood treated in extracted soursop leaf to defence from subterranean termite. This research was conducted in both forestry Laboratorium, Departement and faculty of forestry, University of Tadulako and in rural of Baiya, Distict of Tawaely. Starting from Desember 2013 till Februari 2014. This research used a complete randomized factorial design. The first factor was the concentration of extracted soursop leaf (A) was 4.76% (A1), 13.04% (A2) and 16.66% (A3). The second factor was the immersion time for sengon wood treated in extracted soursop leaf (B) was 5 days (B1), 10 days (B2), and 15 days (B3). The results show that the highest of losing weight is in the control (A0B1) with 3.3%, and the lowest of losing weight is in the concentration of 150g with 10 days immersion (A1B2) with 1.21%. The concentration of extracted soursop leaf and the immertion time of sengon wood did not significantly influence to the lose of weight in tested sample. Keywords:Â Concentration,Â Dipping,Â ParaserianthesÂ falcataria L.Â Nielsen,Â Annona muricata L , Coptotermes sp.

SIFAT MEKANIKA KAYU KEMIRI (Aleurites mollucana Willd) ASAL SULAWESI TENGAH BERDASARKAN ARAH AKSIAL Sari, Nurmala; Erniwati, Erniwati; Hapid, Abdul
Jurnal Warta Rimba Vol 3, No 2 (2015)
Publisher : Universitas Tadulako

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Until present day, using wood species is extremely limited while there are thousands of ignorance species. A lot of research results indicated that woods of lesser known species propose some very good properties as raw materials of wood industry where one of them is candlenut wood. The objective of the research was to know the mechanical properties of the wood referring its axial position (base, middle and top of the trunk). The mechanical properties consist of the comprehensive strength parallel to the grain, modulus of rapture (MOR) and modulus of elasticity (MOE). The benefit of the research is as an useful information for Perhutani in industrial processing of the candlenut wood. The research used a candlenut tree with 39 cm of diameter and 20 m of hight, than 10 years old originating from Ranteleda village, Palolo sub district, Sigi district. Establishment of examined sample used Germani Standard (DIN). By using Completely Randomized Design as a method of experimental design, the research decided the differences on the axial positions (base, middle, and top) as the treatments. The results show the values of the comprehensive strength parallel to the grain are 27,96 N/mm2, 19,51 N/mm2, and 17,51 N/mm2. MOE are 4666,01 N/mm2, 4616,19 N/mm2, and 4295,83 N/mm2. Meanwhile MOR are 65,59 N/mm2, 64,69 N/mm2, 59,40 N/mm2. The axial positions donâ€™t significantly influence the mechanical properties: the comprehensive strength parallel to the grain, modulus of rapture, and modulus of elasticity Keywords: strength parallel to the grain, modulus of rapture (MOR) and modulus of elasticity (MOE), candlenut.

SIFAT MEKANIKA KAYU PINUS (Pinus merkusii Jungh et de Vriese) ASAL DESA TAENDE MORI ATAS MOROWALI UTARA SULAWESI TENGAH Lapeantu, Smith Krisno; Hapid, Abdul; Muthmainnah, Muthmainnah
Jurnal Warta Rimba Vol 5, No 1 (2017)
Publisher : Universitas Tadulako

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The mechanical characteristic of wood also known as the strength of wood, the characeristic that relatedÂ to the wood endurance in holding load and content that given to it. The research aimed to find out the wood mechanical characteristic that involved parallel press strength of fiber, static curve strength (MOE) and broken strength (MOR) of pine (Pinus merkusii Jungh et de Vriese) wood from Taende village Upper Mori subdistrict Morowali Utara District Central Sulawesi. The observed Variabel of the research was the mechanical characteristic of Pine wood that involved the parallel press strength of fiber, the static curve strength (MOE) and the broken strength (MOR). The experiment design that used in the research was Complete Ramdomized Design (CRD) with threeÂ treatments of posititions in the stem: base, middle and tip. Each treatment was repeated six times,Â so there would be 36 units of experiment samples. The result of the research showed that the rate of the parallel pressÂ strength and the highest rate of the base was 453,61 kg/cm2, the middle was 324,50 kg/cm2 Â and the lowest rate of the tie was 269,53 kg/cm2. The highest rate of the static curve strength (MOE) on the base was 62.400,19 kg/cmÂ², the middle was 60.716,01 kg/cmÂ² and the lowest rate on the tip was 59.479,52 kg/cmÂ². The higjest rate of the broken strength (MOR) on the base was 464,80 kg/cmÂ², the middle was 427,81 kg/cmÂ² and the lowest rate on the tip was 386,28 kg/cmÂ². Statistically, the position in the stem had unrealÂ effect to the parallel press strength of fiber MOE and the broken strength MOR of the pine wood was axial one direction.Keywords: Characteristic, Pine wood mechanical, Pinus merkusiiÂ

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