This paper describes a case of occupational asthma caused by samba wood dust. Simple random sampling was used to a subplot from each plotand diameter and height measurements were taken. Inoculated seedlings did not show any foliar symptoms of infection during 4 months of observation. Jan 07, 20 abachi, african whitewood, arare, arere, ayous, ayus, mbado, obeche, okpo, samba, samba ou ayous, wawa heartwood is brown, subwood is almost white.
Incidence and pathogenicity of fomes lignosus klotzch bres. 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. Cuttings of the tropical hardwood species triplochiton scleroxylon k. Towards conservation of genetic variation of tropical tree species. Vegetative propagation techniques have been developed for the species to overcome difficulties of seed supply, and to encourage reforestation efforts. Physiological, environmental and genetic variation in apical. Vegetative propagation of triplochiton scleroxylon k. Triplochiton scleroxylon is a tropical tree of africa. Triplochiton scleroxylon forest products laboratory. Triplochiton scleroxylon in the germplasm resources information network grin, u. Wood dust is a known occupational allergen that may induce, in exposed workers, respiratory diseases including asthma and allergic rhinitis. Pdf the dynamics of rooting in triplochiton scleroxylon. Triplochiton scleroxylon synonyms, triplochiton scleroxylon. All structured data from the file and property namespaces is available under the creative commons cc0 license.
Physical and mechanical properties of selected wood. Journal of research in forestry, wildlife and environment. Infrared spectra of untreated triplochiton scleroxylon wood sample. University of technology akure, ondo state, nigeria, between may 2012 and september 2012. This paper presents the performance of terminalia superba and triplochiton scleroxylon seedlings in enrichment planting in different forest canopy types or disturbance types skid trail, landing bay and undisturbed area. To download the pdf, click the download link above. The pdf file you selected should load here if your web browser has a pdf reader plugin installed for example, a recent version of adobe acrobat reader if you would like more information about how to print, save, and work with pdfs, highwire press provides a helpful frequently asked questions about pdfs. Two phases of bud activity were identified, the sprouting phase, in which many buds were released from correlative inhibition, and the dominance phase. Performance of terminalia superba and triplochiton. The effects of triplochiton scleroxylon aqueous extracts on. The effect of storage period on the viability of triplochiton. We have investigated a possible cross reactivity with a tree belongin.
Boa2 1laboratory of industrial process, synthesis, environment and new energy, national polytechnic institute felix. Iita headquarters pmb 5320, oyo road, ibadan 200001, oyo state, nigeria. All the 47 obeche woodbased products owbps studied. Antigenic proteins involved in occupational rhinitis and asthma caused by obeche wood triplochiton scleroxylon. Department of 1medical biochemistry, faculty of basic medical sciences, college of health sciences, niger delta university, wilberforce island, bayelsa state, nigeria. Schum sterculiaceae is an economically important timber species of west africa which has been heavily exploited in recent years. Four plots, each divided into four subplots measuring 50m x 50m, of one hectare demarcated represented three pure stands of ceiba pentandra, terminalia superba and triplochiton scleroxylon and one mixed stand of the three species. The effect offomes lignosus klotzsch bress ontriplochiton scleroxylon k. Triplochiton scleroxylon definition of triplochiton. Batch and column studies for cadmium ii removal using sawdust from triplochiton scleroxylon. This page was last edited on 20 december 2019, at 20. Effects of aqueous extract of triplochiton scleroxylon on white. Wright triplochiton nigericum sprague homonyms triplochiton scleroxylon k.
The bole is straight, often angular and strongly ridged. Ir spectra of heattreated obeche wood considerably changed relative to the control samples. Triplochiton scleroxylon synonyms, triplochiton scleroxylon pronunciation, triplochiton scleroxylon translation, english dictionary definition of triplochiton scleroxylon. Download fulltext pdf download fulltext pdf download fulltext pdf performance of terminalia superba and triplochiton scleroxylon seedlings under different forest canopy article pdf available. Triplochiton scleroxylon is a deciduous tree growing up to 50 metres tall. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pdf batch and column studies for cadmium ii removal using. Department of agriculture agricultural research service. 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 forig.
They cultivate food crops such as plantain, maize, cassava, and cash crops. Wood technical fact sheet triplochiton scleroxylon. Triplochiton synonyms, triplochiton pronunciation, triplochiton translation, english dictionary definition of triplochiton. View enhanced pdf access article on wiley online library html view download pdf for offline viewing. Their relation to leaf area, node position, dry weight accumulation, leaf water potential and carbohydrate. Wood dust is known to cause allergic occupational asthma and obeche triplochiton scleroxylon is a prominent exponent in this field. Alternatively, you can download the pdf file directly to your computer, from where it can be opened using a pdf reader. Stem resistance was greatest in node 1 cuttings youngest node of stock plants. The effects of stem length on root initiation in sequential.
Enhancement of rooting ability in triplochiton scleroxylon by. Download fulltext pdf the dynamics of rooting in triplochiton scleroxylon cuttings. Benin xwetin cameroon ayous cameroon ayus congo eguess ivory coast samba gabon ayous ghana wawa equatorial guinea ayous equatorial guinea ayus nigeria arere nigeria obeche central african republic bado central african republic mbado germany abachi france ayous france samba united kingdom ayous united kingdom obeche united kingdom wawa. Files are available under licenses specified on their description page. Two important west african timber tree species with differing successional status, mansonia altissima a.
The effects on the rooting of cuttings of injecting either 250. Triplochiton scleroxylon is a pioneer species found in open forests, whereas mansonia altissima is a nonpioneer lightdemanding tree species occurring in closed forests. The species is distributed over the tropical areas of west africa and central africa uses. It is usually up to 150cm in diameter, with exceptional specimens up to 210cm, with buttresses that can be up to 8 metres high. Summarycuttings of the tropical hardwood species triplochiton scleroxylon k. Pdf antigenic proteins involved in occupational rhinitis. We have investigated a possible cross reactivity with a tree belong. Triplochiton scleroxylon ialah spesies kayu keras tropika yang asli. 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. Abachi, african whitewood, arare, arere, ayous, ayus, mbado, obeche, okpo, samba, samba ou ayous, wawa heartwood is brown, subwood is almost white. Tunde ajayi june 21, 2019 manual of propagation ng 0 comments.
Unfortunately, the species has a low service life as a result of its susceptibility to attack by agents of bio deterioration. Identification of an obeche triplochiton scleroxylon wood. At least 100 ml of the aqueous extract was administered orally to test rabbits of new zealand strain weighing between 1200 to. Usda forest service forest products laboratory one gifford pinchot drive madison, wi 537052398 608 2319200. Effects of hot and cold treatment techniques on preservative.
Triplochiton scleroxylon is an important indigenous tropical hardwood species in west africa. Longman summary whereas triplochiton scleroxylon rarely flowers in its native west africa until at least 15 years old, 15 plants representing eight different clones flowered in. The leaves were trimmed to 10, 50 and 100 cm 2 before the cuttings were set under intermittent mist to root. Schum although this paper describes studies on a nonhorticultural species, it reports findings of direct interest to horticulturistseditor.
Thus, this research paper gives account of preservative potential of ocimum basilicum leaf extract against termite attack on triplochiton scleroxylon and ceiba pentandra wood. Schum wood treated with neem azadirachta indica, a. Samba obeche, triplochiton scleroxylon is a tropical tree, which grows in west africa, therefore, polish workers are rarely exposed to it. The growth performance of triplochiton scleroxylon. Towards conservation of genetic variation of tropical tree. Schum was determined by artificially inoculating 5 to 6week old seedlings, as well as by conducting a field survey on 1 to 4year old trees. Effect of xylem blockage on stem resistance and water. We would like to show you a description here but the site wont allow us. The effects of stem length on root initiation in sequential singlenode cuttings of triplochiton scleroxylon k. Due to its erratic flowering cycles, seeds are not readily available on a year to year basis, posing considerable difficulty in. However, the knowledge about wood allergens is still limited. Effects of aqueous extract of triplochiton scleroxylon on.
First published in 1988, the journal welcomes articles reporting original fundamental or applied research on tropical forest biology, ecology, chemistry, management, silviculture, conservation. Biodeterioration mansonia obeche timber extractives woodrotting fungi. This study examined the importance of xylem blockage in limiting the water supply to unrooted stem cuttings. We report on the organisms inducing biodeterioration of obeche wood products and describe the characteristics of obeche trees in terms of. Curabitur aliquam velit eros, faucibus aliquam purus bibendum sed. Triplochiton scleroxylon world agroforestry centre. Triplochiton definition of triplochiton by the free dictionary. Two phases of bud activity were identified, the sprouting phase, in which many buds were released from correlative. Most 70 percent of the people are involved in agriculture. Triplochiton scleroxylon obeche which belongs to the family sterculiaceae is an important indigenous wood species in the nigeria timber market due to its versatility and huge volume supply.
The wood species includes meliceae excelsa, khaya ivorensis, triplochiton scleroxylon, afzelia africana and celtis mildbraedii. Batches of cuttings were harvested after 0, 14, 28 and 42 days to assess leaf water potential, dry weight and. Singlenode, leafy stem cuttings of triplochiton scleroxylon k. Identification of an obeche triplochiton scleroxylon. 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. Incidence and pathogenicity of fomes lignosus klotzch. It has been reported that biopreservatives are toxic free and environmental friendly. Performance of terminalia superba and triplochiton scleroxylon seedlings under different forest canopy. 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 heat retention. Pdf batch and column studies for cadmium ii removal. Triplochiton scleroxylon is a tropical timber with much popularity on the international market. Triplochiton is a genus of flowering plants in the family malvaceae selected species. Studies were conducted on the effects of aqueous extract of triplochiton scleroxylon on white blood cell differentials in alloxaninduced diabetic rabbits.
Synonyms for triplochiton scleroxylon in free thesaurus. The aim of this study was to identify and characterize obeche wood allergens. All the 47 obeche wood based products owbps studied. Physiological, environmental and genetic variation in. The effects of triplochiton scleroxylon aqueous extracts. Triplochiton small genus of tropical african trees with maplelike leaves genus triplochiton dilleniid dicot genus genus of more or less advanced.
Determination of phytochemical composition of the stem bark of triplochiton scleroxylon k. The wood were machined and trimmed to standard size of 20mm x 20mm x 60mm for the. 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. Though heights of inoculated seedlings were not affected by the pathogen. Triplochiton scleroxylon is a tree of the genus triplochiton of the family malvaceae. Several studies have shown that allergy to natural rubber latex is associated with cross reactivity to other plants. Pdf identification of an obeche triplochiton scleroxylon wood. Triplochiton species triplochiton scleroxylon name synonyms samba scleroxylon k.
The pdf file you selected should load here if your web browser has a pdf reader plugin installed for example, a recent version of adobe acrobat reader if you would like more information about how to print, save, and work with pdfs, highwire press provides a helpful frequently asked questions about pdfs alternatively, you can download the pdf file directly to your computer, from where it. Physical and mechanical properties of selected wood species. May 19, 2014 wood dust is a known occupational allergen that may induce, in exposed workers, respiratory diseases including asthma and allergic rhinitis. Milicia excelsa, triplochiton scleroxylon, and other indigenous species with dense understorey of chromolaena odorata, and griffonia simplicifolia hawthrone and abujuam 1995. Batch and column studies for cadmium ii removal using. Triplochiton definition of triplochiton by the free. Fungal resistance of obeche triplochiton scleroxylon k. Patterns of lateral shoot growth following decapitation in 1meter tall, rooted triplochiton scleroxylon k.
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