It is ideal for construction because of its structural strength and natural resistance to termites. [9], Umbelliferone 7-apiosylglucoside can be isolated from the root. It does not thrive on ill-drained soils and remains stunted on dry, sandy or poor soils; drought also reduces it to a shrubby form. Natural Termite Resistance. 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.[6]. A beautiful wood known for its characteristic pink to red brownish color, this lumber is known for its resistance to termites. It proved to be wood pest proof. It doesn’t matter if it is softwood or hardwood, pine, or oak. It is not termite proof. ... Yemane wood is nondurable but the heartwood is moderately durable and termite resistant. Affiliate Disclosure. Gamhar is used in papermaking and in the matchwood industry too. Gmelina arborea is a fast-growing tree, which grows on different localities and prefers moist fertile valleys with 750–4500 mm rainfall. The strong combination between the wood layers ensures high durability and resistance to destruction. It is also used for bentwood articles. Heartwood is the center of the trunk of the tree and the hardest part of the trunk. 1- Melina/Gmelina Wood. It is found at altitudes from sea level to 1,500 metres (5,000 ft). Novel hydroxy lignans from the heartwood of gmelina arborea. The structures of lignans from Gmelina arborea Linn. Gmelina is a blondish colored wood resembling pine. A.S.R. 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", https://en.wikipedia.org/w/index.php?title=Gmelina_arborea&oldid=975242341, Articles needing additional references from August 2017, All articles needing additional references, Creative Commons Attribution-ShareAlike License, This page was last edited on 27 August 2020, at 15:23. This website uses cookies to ensure you get the best experience on our website. Only certain parts of these woods are resistant, the heartwood and occasionally the bark. [7], 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. Gmelina is basically planted and used for wood works such as boat decking, posts, furniture, and general carpentry. [10], 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.[11]. Saplings and young plants need protection from deer and cattle. The wood is also fairly durable, moreso if the tree is allowed to mature completely rather than being grown on a plantation. It is used in construction, furniture, carriages, sports, musical instruments and artificial limbs. Uses: door and window panels, frames, joinery, furniture and musical instruments. Engineered wood is nothing but composite wood manufactured by binding & fixing the strands, particles, fibers, or veneers or boards of wood, together with adhesives. 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. [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. Anjaneyulu, A.Madhusudhana rao, V.Kameswara Rao and L.Ramachandra Row, Tetrahedron, 1977, Volume 33, Issue 1, Pages 133–143. Flowering takes place during February to April when the tree is more or less leafless whereas fruiting starts from May onwards up to June. Gamhar trees coppices very well with vigorous growth. Yemane wood is nondurable but the heartwood is moderately durable and termite resistant. Anjaneyulu, K.Jaganmohan Rao, V.Kameswara Rao, L.Ramachandra Row, C. Subrahmanyam, A. Pelter, R.S. At first everybody thought gmelina wood would be useless for anything but paper pulp or maybe concrete forms, but this was not the case. The wood is also used for manufacturing tea chests and general purpose plywood, blackboards, frame core and cross bands of flush door shutters. Wikipedia. Antifungal activity of constituents from the heartwood of Gmelina arborea: Part 1. It is strong, yet easy to mill and finish. Gmelina arborea grows naturally throughout India, Myanmar, Thailand, Laos, Cambodia, Vietnam and in southern provinces of China. The fruit is up to 2.5 cm long, smooth, dark green, turning yellow when ripe and has a fruity smell. 1.buy termite resistant plywood: chemically treated plywood can usually be moisture resistant and fire resistant. Once seasoned, it is a very steady timber and moderately resistant to decay and ranges from very resistant to moderately resistant to termites. A few woods are naturally resistant to termites, including cedar and redwood. Sensitive antifungal assay against Basidiomycetes. Gmelina arborea timber is reasonably strong for its weight. A few woods are naturally resistant to termites, including cedar and redwood. 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. Melina is in general very stable in service. It is also planted in gardens and avenues.[4][5]. Termite resistant heartwood (also called hardwood) is the oldest and hardest central part of a tree. Ward, Tetrahedron, 1975, Volume 31, Issue 10, Pages 1277–1285. 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. Subterranean termites will happily feed on any of the common woods used for structural lumber in homes. [8] The parent compounds are arboreol or gmelanone. Gmelina arborea timber is reasonably strong for its weight. Once seasoned, it is a very steady timber and resistant to decay and ranges from very resistant to termites… It is light demander, tolerant of excessive drought, but moderately frost hardy. The protective heartwood is found in natural types of trees, such as Eucalyptus, Mahagony or Redwood, Acacia, Cypress, Pine, Teakwood and Cedar. '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. The resistance to termite and marine borer attack is variable, but the wood is usually classified as susceptible. Pressure-treated wood is resistant to insects and decay, and lasts longer than un-treated wood. 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. The heartwood of Gmelina is moderately durable. Gmelina wood is also raw material or a wood material to use in making pulp or paper. In boat building it is used for decking and for oars. 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. Its timber is sought for its durability and is primarily … Termites live on the cellulose found in wood or certain other plant materials, such as cotton. An apiose-containing coumarin glycoside from gmelina arborea root. P. Satyanarayana, P. Subrahmanyam, R. Kasai and O. Tanaka, Phytochemistry, 1985, Volume 24, Issue 8, Pages 1862–1863. Geetha Wood Melina is a southeast Asian tree that produces high-quality. Subterranean termites will happily feed on any of the common woods used for structural lumber in homes. 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. In our catalogue, you will encounter products such as green defensers, plywood that can resist termites. It is also used in artificial limbs, carriages and bobbins. Only certain parts of these woods are resistant, the heartwood and occasionally the bark. Other alternative names are asana, mukwa and padauk. While they can eat any type of wood, there are some species they prefer to avoid as much as possible. Once seasoned, it is a very steady timber and moderately resistant to decay and ranges from very resistant to moderately resistant to termites. Choosing termite resistant wood goes a long way toward preventing these bugs from making a meal of your property. 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