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.
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Plant Resources of Tropical Ivroensis Introduction. Khaya ivorensis also called African mahogany or Lagos mahogany is a tall forest tree with a buttressed trunk in the family Meliaceae.
Seeds can germinate in full sun as well as in the shade, but natural regeneration is apparently sparse in large gaps. The proportion of Khaya ivorensis in these amounts is obscure.
Retrieved from ” https: March Learn how and when to remove this template message. Trees are sometimes leafless for a short period at the beginning of the dry season. Mass production of seeds is reported to occur every 3—4 years. A bark concoction is used as a drink or bath for back pains and as a lotion for rheumatism. Regular thinning of the shade trees in the first years is needed for good growth of the Khaya ivorensis trees.
More research is needed on appropriate ivoensis systems in natural forest to ensure a sustainable exploitation. Khaya ivorensis often occurs along watercourses. This article includes a list of referencesbut its sources remain unclear because it has insufficient inline citations. Tests in rats showed that the bark has dose-dependent anti-inflammatory activity and that it is toxic only at high doses.
The bark showed anticonvulsant activity in mice. In plantations Khaya ivorensis may suffer seriously from Hypsipyla robusta shoot borers that kill the main stem of young trees, causing excessive branching and contributing to mortality. Roberty and Triplochiton scleroxylon K.
Seedlings can survive in dense shade, but for good kjaya opening of the forest canopy is needed. Regeneration of Khaya ivorensis is not promoted by large disturbances in the forest, but it benefits from small gaps. In other projects Wikispecies. It is threatened by habitat loss. The heartwood is pale pinkish brown to pale red, darkening to deep brown with a golden lustre upon exposure.
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Khaya ivorensis is included in the IUCN Red list as a vulnerable species because of habitat loss and degradation, and selective felling. The wood of makore Tieghemella is similar, but more durable. 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 tree’s bark is bitter and can be used as a natural remedy for coughs and whooping cough. After 11 years average heights were It is fairly widely grown in plantations within its natural area of distribution, but also in tropical Asia and tropical America.
Ground young shoots and leaves are applied externally as an anodyne. Khaya comprises 4 species in mainland Africa and 1 or 2 endemic to the Comoros and Madagascar. In year-old plantations in Malaysia, a mean annual increment of 1. Khaya ivorensis is propagated by seed.
Khaya ivorensis (PROTA) – PlantUse English
Khaya ivorensis is most abundant in evergreen forest, but can also be found in moist semi-deciduous forest, in areas with — mm annual rainfall and a dry season of 2—3 months, up to m altitude. In Nigeria Khaya ivorensis trees are locally retained in cocoa plantations to serve as shade trees and ultimately for timber production.
Retrieved from ” https: It prefers alluvial soils which are moist but well-drained, but it can also be found on slopes on lateritic soils. The oil can be used as an additive in liquid soaps, and may act as an antibacterial and antifungal agent because of the presence of limonoids such as methylangolensate. Natural regeneration of Khaya ivorensis after logging is often poor due to the often low density of mature trees in the forest and low regeneration rates in heavily disturbed forest.
Trees planted in the open in the evergreen forest zone reached an average height of 12 m and an average bole diameter of 15 cm after 8 years.
It grows to be about 40—50 m high.
The monoaxial state may persist to a height of 10 m. The seeds are used in soap production. Silvicultural techniques such as overhead shading of saplings, mixed planting and removal of lateral shoots can reduce damage by shoot borers.