KHAYA IVORENSIS PDF

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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By using this site, you agree to the Terms of Use and Privacy Policy. This may be partly due to some genetic resistance against Hypsipyla robusta attack. It grows in groups or singly.

It turns fairly well. The wood is in demand for making backs or sides of acoustic guitars as it is considered to have good acoustical characteristics. It is fairly ivorensos grown in plantations within its natural area of distribution, but also in tropical Asia and tropical America. The wood of makore Tieghemella is similar, but more durable. Its woody fruit is slightly thinner than those of Khaya grandfoliola. The bark of saplings is sometimes eaten by porcupines and squirrels, which can kill the plants.

The wood peels and slices well, producing an excellent quality of veneer. After 11 years average heights were In moist evergreen forest Khaya ivorensis can be ivorensiss flowering and fruiting throughout the year and bearing flowers and fruits at the same time; usually flowering is seasonal, in West Africa being most abundant in June—October.

Ground young shoots and leaves are applied externally as an anodyne. Germination is rather slow, taking 11—40 days. Trees of 30 years old may produce fruits and seeds abundantly. The proportion of Khaya ivorensis in these amounts is obscure.

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In a year-old plantation in Malaysia, trees had an average height of Khaya ivorensis occurs scattered or in small groups in the forest, usually in low densities. The seeds are often already attacked by insects while they are still on the tree, and undamaged seeds should therefore be selected before sowing.

Khaya ivorensis is included in the IUCN Red list as a vulnerable species because of habitat loss and degradation, and selective felling. Trees are sometimes leafless for a short period at the beginning of the dry season. The integration of Khaya ivorensis in agroforestry systems, as is already the case in cocoa based systems in Nigeria, can be considered economically and technically feasible and an ecologically sound strategy.

This page was last modified on 20 Decemberat The combined effects of selection khqya provenances with genetic resistance and appropriate silvicultural practices could have a substantial positive impact on the damage caused by Hypsipyla robusta stem borers. In Brazil Khaya ivorensis is used for reforestation because of its resistance to Hypsipyla grandellathe major pest of Brazilian mahogany.

The wood is moderately durable and can be susceptible to termite and pinhole borer attacks. The wood dust may ivodensis irritation to the skin. In Nigeria Khaya ivorensis trees are locally retained in cocoa plantations to serve as shade trees and ultimately for timber production. Realistic rotation cycles in natural forest are probably in the range of 60—80 years.

Traditionally, the wood is used for dugout canoes. Root pulp is applied as an enema to treat dysentery. The heartwood is pale pinkish brown to pale red, darkening to deep brown with a golden lustre upon exposure.

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March Learn how and when to remove this template message. The bitter-tasting bark is widely used in traditional medicine. 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. The application of 0. Silvicultural techniques such as overhead shading of saplings, mixed planting and removal of lateral shoots can reduce damage by shoot borers.

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Khaya ivorensis – Wikipedia

Please help to improve this article by introducing more precise citations. Some of these showed significant antifeedant activity in ivorensiss, and some antifungal and antibacterial activities. Extensive biosystematic studies on Khaya are recommended, covering the whole range of the genus and also considering the ecological requirements. Logs may have a spongy or brittle heart, and care is needed in felling and sawing operations.

In 26—year-old plantations in Malaysia, mean annual increments of 7. Cookies help us deliver our services.

Khaya ivorensis

More research is needed on appropriate management systems in natural forest to ensure a sustainable exploitation. It has thick and reddish brown bark.

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They are susceptible to attack by longhorn beetles and should be processed not too long after felling. Plant Resources of Tropical Africa Introduction.

Khaya ivorensis also called African mahogany or Lagos mahogany is a tall forest tree with a buttressed trunk in the family Meliaceae. 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 ivogensis 8 years.