The most marketed species are the same as those exploited by the industrial sector, in particular ayous triplochiton scleroxylon and iroko milicia excelsa. Batch and column studies for cadmium ii removal using. This paper presents the performance of terminalia superba and triplochiton scleroxylon seedlings in enrichment planting in different forest canopy types. The effect of storage period on the viability of triplochiton.
The test blocks were cut into 10x10x20 mm and exposed into the infection region of pure culture of lenzites palisoti for 16 weeks. Get a printable copy pdf file of the complete article 302k, or click on a page image below to browse page by page. Wood dust is a known occupational allergen that may induce, in exposed workers, respiratory diseases including asthma and allergic rhinitis. Triplochiton small genus of tropical african trees with maplelike leaves genus triplochiton dilleniid dicot genus genus of more or less advanced. Triplochiton scleroxylon from west africa yields a yellowish. Number of cuttings and percentage rooting of cuttings with dormant and active buds harvested from stock plants of t.
Triplochiton scleroxylon 119in addition, the use of unheated water 2c decreased soil temperatures especially in winter, until water heaters were installed in 1979. May 19, 2014 wood dust is a known occupational allergen that may induce, in exposed workers, respiratory diseases including asthma and allergic rhinitis. Other scholarly content obeche, ayous, samba, african. Sterculiaceae also known as arere yoruba, nigeria is an environmentally and economically important african tropical tree and it was a successful plantation tree species in nigeria. This paper describes a case of occupational asthma caused by samba wood dust. Performance of terminalia superba and triplochiton. This set of markers was successfully used to genotype 753 individuals from 43. Thereafter water was used at about 20c, except where otherwise stated. The 15, 35 and 50 c isotherms were plotted by applying the saturated salts method and fitted using the gab model. Triplochiton scleroxylon indigenous knowledge on forest.
Vegetative propagation techniques have been developed for the species to overcome difficulties of seed supply, and to encourage reforestation efforts. Images and text for 29 species found in nimba county, liberia. Trends and status of illegal timber logging in three forest. Triplochiton scleroxylon is a tropical timber with much popularity on the international market.
I 2003 compressive strength of plantation grown obeche triplochiton scleroxylon k. Sauna builders asthma caused by obeche triplochiton scleroxylon. Full text full text is available as a scanned copy of the original print version. Effect of xylem blockage on stem resistance and water. The plant condition score across the different canopy types range from 05 for terminalia superba and 25 for triplochiton scleroxylon. Triplochiton scleroxylon was the most exploited species representing 23% of tree species exploited by illegal loggers. Plantation grown obeche triplochiton scleroxylon and their relationships with wood specific gravity.
The effects of triplochiton scleroxylon aqueous extracts on. All darkcolored heartwood is not resistant to decay, and some nearly. Sauna builders asthma caused by obeche triplochiton. Schum sterculiaceae is a deciduous tree which grows within moist to dry semideciduous forests throughout west and central africa, from sierra leone to the central african republic. Wood database and searchable library woodworkers source. Triplochiton scleroxylon, essia petersianthus macrocarpus, ofram terminalia superba 3 production of lumber from trees on farmlands and logging residues at six communities in the central and western regions of ghana f. Sorption and thermodynamic properties of terminalia. Precocious flowering and reproductive biology of triplochiton. This timber is also known as abachi, under the nigerian name obeche, the ghana name wawa, the cameroon name ayous and ivory coast name samba. Other scholarly content obeche, ayous, samba, african whitewood. Trends and status of illegal timber logging in three. For the report on cocoa farm shade tree evaluation and recommendations march 2018 cecilia polansky for fifes, csc, and cdp.
Efforts at tackling illegal operations should be geared towards enforcing the laws, ensuring institutional stability and being vigilant in the month during which most of the illegal operations are likely to occur. Pdf wood dust is known to cause allergic occupational asthma and obeche triplochiton scleroxylon is a prominent exponent in this field. Accepted files types are pdf, doc, docx, xls, xlsx, csv and text, please make sure the file is under 2mb. Pdf identification of an obeche triplochiton scleroxylon wood. Department of agriculture agricultural research service. Triplochiton scleroxylon, tectona grandis, gmelina arborea, nauclea diderichii and terminalia ivorensis wood blocks were biodegraded in situ in the laboratory by lenzites palisoti a white rot fungus. The maximum sorption capacity qo obtained from langmuir isotherm models plots were found to be 10. Pdf vegetative propagation of tree species indigenous to. Triplochiton scleroxylon is a tropical tree of africa. Its use is restricted more to the rural than urban areas. This set of markers was successfully used to genotype 753 individuals from 43 populations in five tropical west and central african. The bole is straight, often angular and strongly ridged.
The timber is known by the common names african whitewood, abachi, obeche in nigeria, wawa in ghana, ayous in cameroon and sambawawa in ivory coast description. Cameroon timber trade legality training manual 1 the republic of cameroon stretches between latitudes 2 and north from the gulf of guinea to lake chad and has a total surface area of 475 000 km cameroons forest estate covers 21. Triplochiton scleroxylon, sapelli entandrophragma cylindricum, azobe lophira alato, iroko chlorophora excelsa and frake terminalia superba currently represent nearly 70% of national timber production. Of fine even texture, although the grain can be interlocked, to works very easily. The plant is used in traditional medicine to treat oedemas and as an anodyne. Triplochiton scleroxylon is a deciduous tree growing up to 50 metres tall. Schum sterculiaceae is an economically important timber species of west africa which has been heavily exploited in recent years. It is usually up to 150cm in diameter, with exceptional specimens up to 210cm, with buttresses that can be up to 8 metres high. Pdf generated through capture perfect using omnipage 14 pro for textual ocr.
Triplochiton scleroxylon synonyms, triplochiton scleroxylon pronunciation, triplochiton scleroxylon translation, english dictionary definition of triplochiton scleroxylon. Wood production and structure in laboratorygrown cuttings. Woodworking projects i cant open pdf files on my computer etsy. Cuttings of the tropical hardwood species triplochiton scleroxylon k. Indonesia djelutong indonesia jelutong indonesia melabuwai peninsular malaysia andjaroetoeng peninsular malaysia jelutong peninsular malaysia jelutong bukit peninsular malaysia jelutong paya peninsular malaysia letoeng peninsular malaysia pantoeng malaysia islands jelutong sitco lumber company 2050 kestrel avenue. Towards conservation of genetic variation of tropical tree species. Wood production and structure in laboratorygrown cuttings of.
Triplochiton scleroxylon is a pioneer species found in open forests, whereas mansonia altissima is a nonpioneer lightdemanding tree species. Growth determinants of timber species triplochiton scleroxylon and implications for forest management in central africa. Iowa farm custom rate survey iowa state university. Vegetative propagation of triplochiton scleroxylon k. Studies of changes in anatomical properties showed that, although constant levels of light intensity, temperature and. Samba obeche, triplochiton scleroxylon is a tropical tree, which grows in west africa, therefore, polish workers are rarely exposed to it. The young leaves are used as a vegetable in stews and soup. The timber is known by the common names african whitewood, abachi, obeche in nigeria, wawa in ghana, ayous in cameroon and sambawawa in ivory coast. Ayous triplochiton scleroxylon also known as obeche or samba. Juam technical director forestry ministry of lands and natural resources project focal point, accra. It is usually up to 150cm in diameter, with exceptional specimens up to 210cm, with buttresses that can be up to. The hygroscopicity and thermodynamic properties of terminalia superba engl. Triplochiton scleroxylon ayous principal plantation species lophira alata azobe cylicodiscus gabunensis okan entandrophragma candollei kossipo milicia excelsa iroko pericopsis elata assamela distemonanthus benthamianus movingui lovoa trichilioides dibetou sterculia rhinopetala lotofa. Triplochiton synonyms, triplochiton pronunciation, triplochiton translation, english dictionary definition of triplochiton.
The use of this tree for reforestation programmes has not been very. Triplochiton definition of triplochiton by the free dictionary. The species is distributed over the tropical areas of west africa and central africa. Wood production and structure in laboratorygrown cuttings of triplo chiton scleroxylon with changes in light intensity. Triplochiton scleroxylon, biotechnology, carbohydrates, cutting, hardwood, histology, horticulture, physiological state, rooting, water potential, xylem abstract. Woodworking projects i cant open pdf files on my computer. Triplochiton is a genus of flowering plants in the family malvaceae selected species. Rooted mature cuttings of triplochiton scleroxylon were subjected to 92. Triplochiton scleroxylon definition of triplochiton.
Investigation conducted into the uses of obeche, triplochiton scleroxylon k. Links to pubmed are also available for selected references. Fernando salinas senior forestry officer fao accra, ghana mr. Triplochiton scleroxylon world agroforestry centre. Mar 30, 2016 182 snp markers were developed for ayous triplochiton scleroxylon k. Triplochiton scleroxylon is a tree of the genus triplochiton of the family malvaceae. The effects of triplochiton scleroxylon aqueous extracts.
The species is distributed over the tropical areas of west africa and central africa uses. Triplochiton scleroxylon obeche, wawa obeche, ayous 4. The effect of triplochiton scleroxylon wawa aqueousextracts were tested on the seeds of tomato lycopersicumesculentum, pepper capsicum annuum and garden egg solanummelongena in the pathology laboratory of the forestry research institute of. Ghana forestry report draft towards ecowas forest convergence plan prepared by prof. Growth determinants of timber species triplochiton scleroxylon and. Obeche has moderately adequate broad leaf structure and specialty stem characters such as self pruned cylindrical bole. Triplochiton definition of triplochiton by the free. It occasionally serves as vegetable variety and as substitutes for shrub and herb leaf vegetable during drought. Quick facts all of echo wood veneers are offered fsc certi. Schum by incorporating information from two next generation sequencing approaches radseq floragenex and aflpseq iontorrent pgm into a single genotyping panel for massarray iplex. Ceiba pentandra, obeche triplochiton scleroxylon, and ramin gonystylus bancanus.
Peeled and sliced veneer for interior and exterior parts of plywood, fibre and particle board, blockboard. This timber is also known as abachi, under the nigerian name obeche, the ghana name wawa, the cameroon name ayous and ivory coast name samba a specialized use of obeche wood is the construction of sauna interior parts that touch skin, where the wood is prized for its lack of splinters or resin, and most importantly its low. Langmuir and freundlich isotherm models were applied to equilibrium data at four temperatures. In some species, such as black locust, western redcedar, and redwood, heartwood extractives make the wood resistant to fungi or insect attack. Media in category triplochiton scleroxylon herbarium specimens the following 2 files are in this category, out of 2 total. Blockboard, boat building, boxes and crates, cabinetmaking, decorative plywood, decorative veneer, fiberboard, furniture components, joinery, marquetry. Halfway through this period, some of the plants were transferred to a light level of 34.