The tree is widely exploited for its very valuable timber, which is traded internationally, and plantations have been established in several countries. A high. Identity. Top of page. Preferred Scientific Name. Khaya ivorensis A. Chev. Preferred Common Name. African mahogany. International Common. Khaya ivorensis is distributed from Côte d’Ivoire east to Cameroon and south to Cabinda (Angola); it possibly also occurs in Guinea, Liberia.
|Published (Last):||23 February 2008|
|PDF File Size:||13.6 Mb|
|ePub File Size:||20.7 Mb|
|Price:||Free* [*Free Regsitration Required]|
In Brazil Khaya ivorensis is used for reforestation because of its resistance to Hypsipyla grandellathe major pest of Brazilian mahogany. The seed weight is — g.
Khaya ivorensis – Wikipedia
In tropical Africa Khaya ivorensis has been planted successfully in mixed plantations, e. Retrieved ivorebsis ” https: Plant Resources of Tropical Africa Introduction. The grain is straight or interlocked, texture rather coarse.
Smoke from the wood showed good results in tests of smoking fish, protecting the fish effectively ivorenwis fungi. Natural regeneration of Khayz ivorensis after logging is often poor due to the often low density of mature trees in ivorenzis forest and low regeneration rates in heavily disturbed forest.
The boles float in water and thus can be transported by river. Bark extracts showed weak antitrypanosomal and antiplasmodial activities in tests with mice. Regeneration of Khaya ivorensis is not promoted by large disturbances in the forest, but it benefits from small gaps. Limonoids have been isolated from the bark and seeds. Average heights were It is mostly found in West Africa and southern Nigeria. The proportion of Khaya ivorensis in these amounts is obscure.
In southern Cameroon on average 0. Views Read Edit View history.
The monoaxial state may persist to a height of 10 m. The application of 0.
Retrieved from ” https: There appears to be a more or less gradual transition in species according to ecological gradients, from the moist evergreen forest zone through semi-deciduous forest to the savanna zone. The wood dust may cause irritation to the skin. Management under the tropical shelterwood system seems most appropriate.
The sapwood is often removed soon after felling to prevent attacks by ambrosia beetles. It is fairly widely grown in plantations within its natural area of distribution, but also in tropical Asia and tropical America.
The bitter-tasting bark is widely used in traditional medicine. The boles of Khaya ivorensis trees are occasionally so large that they cannot be sawn with normal equipment. The seeds are best sown in seed beds in the nursery. Its bark is durable and is used to make many things such as furniture and paneling. Seeds can germinate in full sun as well as in the shade, but natural regeneration is apparently sparse in large gaps. It has been suggested that the addition of seeds at favourable sites is a realistic option to obtain sufficient regeneration after logging.
Seeds are commonly attacked by seed-boring beetles and eaten by small rodents. Accessed 13 November Root pulp is applied as an enema to treat dysentery. Some of these showed significant antifeedant activity in insects, and some antifungal and antibacterial activities.
IUCN Red List of Threatened Species
Ground young shoots and leaves are applied externally as an anodyne. In other projects Wikispecies.
uvorensis They are susceptible to attack by longhorn beetles and should be processed not too long after felling. It prefers alluvial soils which are moist but well-drained, but it can also be found on slopes on lateritic soils.
The wood can be finished to a smooth surface, but the use of a filler is required in staining and varnishing. Tests in rats showed that the bark has dose-dependent anti-inflammatory activity and that it is toxic only at high doses.
In recent years, the United States market has dominated the international trade in Khaya timber, especially as a substitute for American mahogany from Swieteniathe availability of which has declined considerably. More extensive establishment ivorehsis plantations of Khaya ivorensis is certainly desirable in tropical Africa, but Hypsipyla attack is a serious drawback.
From Wikipedia, the free encyclopedia.