Lookup at Google Scholar Green specific gravity based on green weight and green volume, air dried specific gravity based on weight and volume in air dried condition, and oven dried specific gravity based on oven weight and green volume; shrinkage; maximum bending strength (MOR) … ABSTRACT. A detailed review, including seasoning, working, peeling, pulping and papermaking properties, preservative treatment and suitability for particleboard. Under good management regime each trees yield about 1.5 to 2 tons. It also burns well and makes a … The wood of the gambhari tree is a… Produced by many botanical species, including both gymnosperms and angiosperms, wood is available in various colours and grain patterns.It is strong in relation to its weight, is insulating to heat and electricity, and has desirable acoustic properties. The effects of different watering regimes on vegetative growth, histological properties of wood, and the derived values relevant to paper and pulp production of Gmelina arborea Roxb. Gmelina is a blondish colored wood resembling pine. 'Kumizh tree' when burnt yields the whitest possible ash; mention is made by certain 'rock art enthusiasts' that this ash is one of the ingredients in the semi-solid white ochre used to draw the very ancient 'cave paintings,' as old as 3,000 to 5,000 years or more; found in the dense forests of Tamil Nadu. Continuing to use www.cabdirect.org Sensitive antifungal assay against Basidiomycetes. 1986. Some fungal pathogens have … It does not thrive in illdrained soil and remains stunted in dry, sandy or poor soil. The potential using of organic nanoparticles synthesized from Gmelina (Gmelina arborea Roxb.) Gmelina arborea is an unarmed, moderately sized to large deciduous tree with a straight trunk. Extensive online help - available wherever you are in CAB Direct. J Trop For Sci 20(2):99–104. 140 No. Numerous insect pests and pathogens have been recorded in stands of gmelina in areas where the trees are native. Novel hydroxy lignans from the heartwood of gmelina arborea. Yemane is commonly use for … World view of Gmelina arborea: opportunities and challenges. It is ideal for construction because of its structural strength and natural resistance to termites. were investigated. Medicinal Uses of Gmelina arborea. Preliminary results indicate that gmelina wood from the dry region has a higher heartwood percentage, higher specific gravity, better mechanical properties and higher absorption of preservatives when pressure treated than does wood from the humid regions. CAB Direct provides Gmelina arborea is a medium-density timber species and has excellent strength properties [19]. Fruits of gambhari are sweet and cooling and contain tartaric acid which is a natural anti-oxidant found in also found in wine. It is also planted in gardens and avenues.[5][6]. The fruit is up to 2.5 cm long, smooth, dark green, turning yellow when ripe and has a fruity smell. It planes to a smooth finish and polishes well. This inevitably led to an extensive exploitation of the trees in the plantation. Gmelina arborea timber is reasonably strong for its weight. In the instrument industry gambhar timber is widely employed for the manufacture of drawing boards, plane tables, instrument boxes, thermometer scales and cheaper grade metric scales. The leaves are considered good for cattle and are also used as a feed to eri-silkworm. The wood makes a fairly good charcoal. These species are likely to be planted on a large … (gmelina) is a rapidly growing tree, which due to its drought tolerance and excellent wood properties, is emerging as an important plantation species. INTRODUCTION Wood is a hard fibrous … The illegal logging trade coupled with illegal … three gmelina arborea stand of 20,22,and 27 years old were used for the study. An apiose-containing coumarin glycoside from gmelina arborea root. The roots are light coloured from outside and yellow from inside. The effects of different watering regimes on vegetative growth, histological properties of wood, and the derived values relevant to paper and pulp production of Gmelina arborea Roxb. It is listed as endangered due to a population reduction of over 50% in the past three generations, caused by … Wood sofa bed Set (1-5 seater) * Pure wood * Wide rectangular wood sofa style * Thick wood * Very thick/ very heavy table leg * Intricately carved bed * Table size: 70 x 25.5 inches (Length x Height) * NEW Price is ₱ 2500 (Original Price ₱ 3000) Used The Gmelina arborea trees harvested 4 – 5 years after planting for pulp wood, Fire wood. The effects of some soil physio-chemical properties on the growth of Gmelina arborea Roxb. SALE!! The tree lives short time but with proper care the life span can increase up to 30 to 40 years. wood bark as nanofiller of wood adhesive: physical, chemical and thermal properties A tree of Gmelina arborea and Brachystegia eurycoma was purposively selected, felled and cut into merchantable height. It is strong in relation to its weight, is insulating to heat and electricity, and has desirable acoustic properties. Gmelina is a fast-growing, unarmed, moderately sized to large deciduous tree with a wide spreading canopy with numerous branches forming a large shady crown. Fiber proportion was … Influence Of Plantation Age On Characteristics Of Gmelina Arborea. wood produced and changes wood fiber properties, it does not significantly affect the quality of paper produced from Gmelina wood. @article{osti_5863924, title = {Possibility of tree selection and breeding for genetic improvement of wood properties of Gmelina arborea}, author = {Akachuku, A E}, abstractNote = {Wood samples of Gmelina arborea were collected from Nigerian plantations. Gmelina arborea is the scientific name of a deciduous tree also commonly known as either Beechwood or white teak. Despite its importance in log production terms, very little Ceiba has been exported. Gmelina arborea timber saws easily and has only slight blunting effects on tools. This is to ensure that we give you the best experience possible. @article{osti_5863924, title = {Possibility of tree selection and breeding for genetic improvement of wood properties of Gmelina arborea}, author = {Akachuku, A E}, abstractNote = {Wood samples of Gmelina arborea were collected from Nigerian plantations. Gmelina arborea (Verbenaceae) is an important tree species of the tropics. in the Rio Jari region of Brazil to feed a 750 MT/day kraft pulp mill. There are over 13,768,000 records available in CAB Direct | Last updated on February 22, 2021. Tan YE, Lim NPT, Gan KS, Wong TC, Lim SC, Thilagawaty M (2010) Testing methods for plantation grown tropical timbers. … Anjaneyulu, K.Jaganmohan Rao, V.Kameswara Rao, L.Ramachandra Row, C. Subrahmanyam, A. Pelter, R.S. This research examines how wood properties in gmelina plantation change with age of the tree, at different locations within the tree, and under varying management regimes in different climatic regions of the country. [8], Lignans, such as 6" - bromo - isoarboreol, 4-hydroxysesamin, 4,8-dihydroxysesamin, 1,4-dihydroxysesamin (gummadiol), 2-piperonyl-3-hydroxymethyl-4-(α-hydroxy-3,4-methylenedioxybenzyl)-4-hydroxytetrahydrofuran and the 4-O-glucoside of 4-epigummadiol, can be isolated from the heartwood of Gmelina arborea. The fruit is edible and has a bitter-sweet taste.[4]. With pulping properties superior to most hardwood pulps, gmelina has been planted by the millions, e.g. [1997] Lempang, M.; Ginoga, B.; Access the full text NOT AVAILABLE. It is used in construction, furniture, carriages, sports, musical instruments and artificial limbs. Grain/Texture: Grain tends to be interlocked, though it can be straight.With a fairly coarse texture and good natural luster. The flowers are reddish yellow in colour and fruits are green and oval shaped. It is native to India and parts of Southeast Asia, and its dense, thick wood is used to make furniture, boats, and musical instruments. Gambhari is extensively used in Ayurveda. Perhaps the greatest threat to plantations of this tree is damage due to pests and diseases. Hand lay-up method … It was introduced to tropical Africa from Southeast Asia (Rodgers, 1913) and is gaining entry into pulp and paper manufacturing (Chittenden, Coursey, and Rotibi, 1964), match making, and veneers for … Soil moisture stress significantly retarded vegetative growth as analyzed by leaf area ratio, root shoot ratio, net assimilation rate, and relative growth rate. Karlinasari L, Wahyuna ME, Nugroho M (2008) Non-destructive ultrasonic testing method for determining bending strength properties of Gmelina wood (Gmelina arborea). Hence, Brachystegia eurycoma can be recommended as a good and suitable wood substitute for Gmelina arborea in talking drum production. Related Species: Pericopsis (Pericopsis mooniana) Related Articles: Restricted and Endangered Wood Species; Sorting Out Satinwoods; Scans/Pictures: A special thanks to Justin Holden … https://www.planetayurveda.com/library/gambhari-gmelina-arborea Wood, the principal strengthening and nutrient-conducting tissue of trees and other plants and one of the most abundant and versatile natural materials. Anatomical structure. The tree attains moderate to large heights of up to 30 m, with a girth of 1.2 to 4 m. It has a chlorophyll layer just under the outer bark, which is pale yellow on the outside and white inside. Gmelina arborea is a medium-density timber species and has excellent strength properties [19]. The aim of this study was to evaluate the effects of radial growth on wood properties and anatomical characteristics, and to clarify the xylem maturation process in Gmelina arborea. [11], Five constituents, isolated from the heartwood of G. arborea, (+)-7′-O-ethyl arboreol, (+)-paulownin, (+)-gmelinol, (+)-epieudesmin and (−)-β-sitosterol, show antifungal activity against Trametes versicolor.[12]. Flowering takes place during February to April when the tree is more or less leafless whereas fruiting starts from May onwards up to June. The strength and related properties of 7- and 3-year-old first and second coppice and 3-year- old planted stand of yemane (Gmelina arboreaRoxb.) Wood, the principal strengthening and nutrient-conducting tissue of trees and other plants and one of the most abundant and versatile natural materials. Prices are medium to high for an imported African hardwood. Studies show that Gmelina arborea wood is suitable for use as plywood, particleboard, mining props and telecommunication transmission poles. It is light demander, tolerant of excessive drought, but moderately frost hardy. The wood is also used for manufacturing tea chests and general purpose plywood, blackboards, frame core and cross bands of flush door shutters. words: Gmelina arborea, medicinal properties, antifungal activity, antibacterial activity, G. uses are highly [2]. However, this may run the risk of introducing … gmelina wooden sofa bed. the study examined the influence of age series on fibre characteristics of gmelina arborea established in mamu forest reserve,anambra state. The main problem with the plantations was that most of the trees had never been pruned and were, therefore, quite crooked. [10], Umbelliferone 7-apiosylglucoside can be isolated from the root. 2011. Ward, Tetrahedron, 1975, Volume 31, Issue 10, Pages 1277–1285. There is a perception that domestic prices will rise, partly as a consequence of increased demand and also as a result of further processing of mill fall downs by the mills. Physical and mechanical properties of the boards were assessed showing the relationship between diverse variables such as … The low density of Gmelina is often a source of complaint among planted forest managers, and as a consequence researchers are attempting to breed higher density varieties or hybrids (Dvorak, 2004). The wood of Gmelina is used as raw material for cellulose, and it has received attention as a source of good quality pulp, medium density fiberboard and plywood because of its beautiful white color and stronger fiber. assessment of selected acoustic properties of talking drums produced from known wood species (Gmelina arborea) and lesser known wood species (Brachystegia eurycoma). The heartwood of Gmelina is moderately durable. The straight, cylindrical bole is commonly around 50cm in diameter, but specimens up to 140cm have been recorded [ 325 This research aims to investigate the effects of gmelina wood filler addition on tensile properties, impact strength and morphology of epoxy composites. F. Kawamura, S. Ohara and A. Nishida, Holzforschung, June 2005, Volume 58, Issue 2, Pages 189–192, Learn how and when to remove this template message, "A tree species reference and selection guide", "Gmelina arborea Gmelina, Snapdragon, White Teak PFAF Plant Database", https://en.wikipedia.org/w/index.php?title=Gmelina_arborea&oldid=1005891889, Articles needing additional references from August 2017, All articles needing additional references, Creative Commons Attribution-ShareAlike License, This page was last edited on 9 February 2021, at 23:33. Wood samples were Generally acknowledged as the hardest wood, lignum vitae (Guaiacum sanctum and Guaiacum officinale) measures in at 4,500 … When knots are present in the wood, cutting angles should be reduced. 2, December 2011 233 Laboratory Evaluation of Wood Properties Strength and related properties were evaluated in accordance with the ASTM Designation D-143-52 (1998) or Standard Method of Testing Small Clear Specimens of Timber. Keywords—Brachystegia eurycoma; Gmelina arborea; talking drum; moisture content; density; modulus of elasticity; sound velocity; impedance; frequency; wavelength. Gmelina arborea is a popular timber for picture and slate frames, turnery articles and various types of brush backs, brush handles and toys also for handles of chisels, files, saws, screw drivers, sickles etc. Color/Appearance: Heartwood color ranges from golden yellow brown to a deeper reddish brown, frequently with darker black streaks and stripes.Paler sapwood is clearly demarcated from the heartwood. FAO, 1981. OHBA Y ASHI H., SHIOKURA T., 1989. Once seasoned, it is a very steady timber and moderately resistant to decay and ranges from very resistant to moderately resistant to termites. means you agree to our use of cookies. The objective of this research was to determine growth rate effects measured in tree diameter on wood density parameters (mean, minimum, maximum and intra-ring variation) and in fiber dimensions (wall thickness, fiber width, lumen … Gmelina arborea timber is reasonably strong for its weight. The species selected were Acacia auriculiformis, A. cincinnata, A crassicarpa, A. leptocarpa, A. mangium, Cassia siamea, Gmelina arborea and Paraserianthes falcataria. The excellent Gmelina arborea wood properties, makes the demand for Gmelina wood very high. J Wood Sc (57): 134–139. wood produced and changes wood fiber properties, it does not significantly affect the quality of paper produced from Gmelina wood. In the Southern Guinea Savanna area of Nigeria. The tree can grow from 5.8 m to 8.3 meter and the diameter can expand from 10 cm to 15 cm. Malaysian Forester, 52(4):159-165. As they were originally destined to be milled into wood chips, straightness was not a concern, … It is strong, yet easy to mill and finish. It is also popular as firewood in part because of how slow it is to burn. The trees harvested at 10 – 12 years after planting for log productions. Abstract. Gmelina is a blondish colored wood resembling pine. It is often planted as an ornamental avenue shade tree. The resistance to termite and marine borer attack is variable, but the wood is usually classified as susceptible. Anjaneyulu, A.Madhusudhana rao, V.Kameswara Rao and L.Ramachandra Row, Tetrahedron, 1977, Volume 33, Issue 1, Pages 133–143. It is native to India and parts of Southeast Asia, and its dense, thick wood is used to make furniture, boats, and musical instruments. Gmelina arborea (Verbenaceae) is an important tree species of the tropics. Comparative study on physical and mechanical properties of laminated lumber and plywood panels made from fast-growing Gmelina arborea trees. CAB Direct wood samples were collected from the core wood,inner wood and outer wood at 10%, 50% and 90% of the tree merchantable height in accordance with the standard procedure (british standard … It can grow from 3 - 30 metres tall, sometimes even taller. Some properties of melina wood (Gmelina arborea Roxb.) Gmelina arborea, (in English beechwood, gmelina, goomar teak, Kashmir tree, Malay beechwood, white teak, yamane[3] ), locally known as gamhar, is a fast-growing deciduous tree in the family Lamiaceae. It is also popular as firewood in part because of how slow it is to burn. They are shown to be of general utility and are particularly suitable for pulping. The total yield per hector is around 250 – 300 tones / Ha. wood properties of Gmelina arborea rele vant to pulp and. Antifungal activity of constituents from the heartwood of Gmelina arborea: Part 1. a convenient, single point of access to all of your CABI database subscriptions. It has good working properties (sawing, moulding, peeling, turning and sanding) and physical-mechanical Inside surface of bark rapidly turns brown on exposure and … The vision of the division is to achieve excellence in research, development and transfer of technology in wood properties for better and appropriate end uses for conservation of natural resources. The Lion Throne, the most important, and last surviving, of the eight royal thrones of Myanmar, now in the National Museum in Yangon, is carved from Gmelina arborea wood.[7]. The effects of different nitrogen sources and levels of application on the physical and histological properties, and on resultant values relevant to p… Gmelina arborea wood is pale yellow to cream-coloured or pinkish-buff when fresh, turning yellowish brown on exposure and is soft to moderately hard, light to moderately heavy, lustrous when fresh, usually straight to irregular or rarely wavy grained and medium course textured. the study examined the influence of age series on fibre characteristics of gmelina arborea established in mamu forest reserve,anambra state. Fiber length was measured with a modified map measurer. Properties of Gmelina arborea Roxb. The low density of Gmelina is often a source of complaint among planted forest managers, and as a consequence researchers are attempting to breed higher density varieties or hybrids (Dvorak, 2004). A.S.R. Ezema MIS, 1989. were investigated. All 3 timbers are pale coloured, except for A. mangium heartwood, and of low density (380-480 kg/m3). The wood density was measured with an X-ray densitometer. It is also used for bentwood articles. Gmelina arborea grows naturally throughout India, Myanmar, Thailand, Laos, Cambodia, Vietnam and in southern provinces of China. three gmelina arborea stand of 20,22,and 27 years old were used for the study. Influence of Plantation Age on Characteristics of gmelina Arborea. Lignocellulosic filler such as gmelina wood flour is an alternative of synthetic reinforcements which is ecofriendly, abundant in nature and inexpensive. Of these, 2,000 hectares are cultivated by Subri … Find out more about this exciting new development, Using our new visualization tools you can, Using our new highlighting and annotation tool you can, remove selected records that are not saved in My CABI, sign you out of your The potential of each species for different conversion processes and … Preliminary results indicate that gmelina wood from the dry region has a higher heartwood percentage, higher specific gravity, better mechanical properties and higher absorption of preservatives when pressure treated than does wood from the humid regions. Gmelina ( Gmelina arbórea) is a fast-growing species and planted in plantation forest. It is one of the five roots of Brihat Panchamula (five larger roots or stem bark of tree, Gmelina arborea, Aegle marmelos, Premna integrifolia, Oroxylum indicum and Stereospermum suaveolens). Gmelina arborea is the scientific name of a deciduous tree also commonly known as either Beechwood or white teak. It is used in construction, furniture, carriages, sports, musical instruments and artificial limbs. Gmelina arborea (Family: Verbenaceae) is considered as a useful multi-purpose species. Gmelina wood only has a density of about 410 kg/m 3 (compared to 470 to 500 for Acacia mangium and hybrids; and over 600 for most Eucalypts). The tree lives short time but with proper care the life span can increase up to 30 to 40 years. Gmelina wood can be used as light construction wood, handicraft materials, furniture, fancy veneer, match materials, and pulp and paper. Lignocellulosic filler such as gmelina wood flour is an alternative of synthetic reinforcements which is ecofriendly, abundant in nature and inexpensive. The gluing properties are reported as good. Influence of Plantation Age on Characteristics of gmelina Arborea. ITTO project on improving utilization and value … One of the fast-growing plantation wood species, gmelina has a maturity of about 12 years as compared to Philippine mahogany which matures in about 30 years. The rate of exploitation far out- stripped the rate of natural regeneration through coppicing leading to the over . SALE!!! Perhaps the best known use of this tree, though, is as an alternative medicine. G. sh. Its timber is highly esteemed for door and window panels, joinery and furniture especially for drawers, wardrobes, cupboards, kitchen and camp furniture, and musical instruments because of its light weight, stability and durability. ABSTRACT. New Forests, 28, 111-126. SALE!!! Gmelina arborea is a fast-growing tree, which grows on different localities and prefers moist fertile valleys with 750–4500 mm rainfall. A short rotation system was possible in the Gmelina arborea plantations due to silvicultural techniques that increased their growth rate. Learn more about wood in … Gmelina arborea, commonly known as beechwood, gmelina, goomar teak, Kashmir tree, Malay beechwood, white teak, yemane and locally known as gamhar, is actually a fast-growing deciduous tree, growing naturally throughout greater part of India at altitudes up to 1,500 meters. Studies show that Gmelina arborea wood is suitable for use as plywood, particleboard, mining props and telecommunication transmission poles. Dvorak WS, 2004. … Gamhar is a Southeast Asian tree that produces high-quality wood which is pale yellow to cream-colored or pinkish-buff when fresh, turning yellowish brown on exposure and is soft to moderately hard, light to moderately heavy, lustrous when fresh, usually straight to irregular or rarely wavy grained and medium course textured, The wood is used to make furniture, boats and musical instruments, such as Indian … One of the fast-growing plantation wood species, gmelina has a maturity of about 12 years as compared to Philippine mahogany which matures in about 30 years. Gamhar trees coppices very well with vigorous growth. were studied to generate information that could help tree farmers properly grow, harvest, and utilize yemane timber from a coppice stand. This tree is commonly planted as a garden and an avenue tree; growing in villages along agricultural land and on village community lands and wastelands. You can now claim your publications on CAB Direct with your ORCID iD! Afrormosia does look somewhat similar to Teak, has similar working and mechanical properties, and is extremely durable in outdoor applications; for these reasons, it’s used with a fair degree of success as a substitute for Teak. It is found at altitudes from sea level to 1,500 metres (5,000 ft). [1] Since the 1960s, it has been introduced extensively as fast-growing timber trees in Brazil, Gambia, Honduras, Ivory Coast, Malaysia, Malawi, Nigeria, the Philippines, and Sierra Leone. Gmelina arborea Roxb. Strands and sawdust processed from left-over of Gmelina arborea residues recovered from the forest were used to produce cement bonded composites. Like most websites we use cookies. In the instrument industry gambhar timber is widely … A.S.R. properties of wood of Tectona grandis and Gmelina arborea from forest plantations Róger Moya Roque Diego Méndez-Mejías Technology Institute of Costa Rica Conference Secretariat Faculty of Forestry Un iversity of British Columbia 2005 - 2424 Main Mall Vancouver, BC, V6T 1Z 4 Canada +1 604 8 22 3542 iufro.2017 @ ubc.ca www.iufrodiv5-2017. Finding use for residues from felling operations has been a major focus on increasing volume recovery of harvested woody biomass. paper production.