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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They are susceptible to attack by longhorn beetles and should be processed not too long after felling. It grows many white flowers at the end of its branches.

Khaya ivorensis (PROTA) – PlantUse English

Views Read Edit View history. In tropical Africa Khaya ivorensis has been planted successfully in mixed plantations, e.

Young trees have a slender stem and a small crown. This may be ivorensls due to some genetic resistance against Hypsipyla robusta attack. Khaya species strongly resemble each other in flowers and fruits, and differences are most prominent in their leaflets.

Ivorensiss seeds are best sown in seed beds in the nursery. It is threatened by habitat loss. Ivorensi Terms of Use for details. Seedlings are planted out when 60—90 cm tall, usually as stumps or striplings. Extensive biosystematic studies on Khaya iborensis recommended, covering the whole range of the genus and also considering the ecological requirements. In year-old plantations in Malaysia, a mean annual increment of 1. The heartwood is pale pinkish brown to pale red, darkening to deep brown with a golden lustre upon exposure.

Khaya ivorensis occurs scattered or in small groups in the forest, usually in low densities. Roberty and Triplochiton scleroxylon K. By using our services, you agree to our use of cookies. Bark decoctions are taken to treat cough, fever and anaemia, and are applied externally to wounds, sores, ulcers and tumours, and as an anodyne to treat rheumatic pains and lumbago.

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Root pulp is applied as an enema to treat dysentery. Its bark is durable and is used to make ivorensiw things such as furniture and paneling.

The bark of saplings is sometimes eaten by porcupines and squirrels, which can kill the plants. It has thick and reddish brown bark. Ivorensks help to improve this article by introducing more precise citations. More recently it has been planted successfully in 3 rows to mark the boundary of forestry reserves.

It has been suggested that the addition of seeds at favourable sites is a realistic option to obtain sufficient regeneration after logging. Tests in rats showed that the bark has dose-dependent anti-inflammatory activity and that it is toxic only at high doses.

Khaya ivorensis often occurs along watercourses. Realistic rotation cycles in natural forest are probably in the range of 60—80 years. Dispersal of the seeds is by wind, but most seeds fall close to the parent tree.

It has been proposed for inclusion in CITES appendix I or II, but it has not been listed due to insufficient information on regeneration, extent of plantations and sustainability under current management regimes. The boles float in water and thus can be transported by river.

Khaya ivorensis

Khaya ivorensis wood is exported from West African countries in mixed consignments with other Khaya spp. In other projects Wikispecies. It prefers alluvial soils which are moist but well-drained, but it can also be found on slopes on lateritic soils. 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.

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The application of 0. Khaya comprises 4 species in mainland Africa and 1 or 2 endemic to the Comoros and Madagascar. Average heights were In 26—year-old plantations in Malaysia, mean annual increments of 7.

Provenance trials in Ghana showed a fairly high heritability for height growth, with the growth of the highest-ranking progenies being nearly twice that of the lowest-ranking ones.

The wood trade names: Fruits mature in about 6 months. The wood is moderately durable and can be susceptible to termite and pinhole borer attacks. The heartwood is strongly resistant to impregnation, the sapwood moderately resistant. The bending properties are poor. 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.

The wood is in demand for making backs or sides of acoustic guitars as it is considered ivorensjs have good acoustical characteristics. The wood of makore Tieghemella is similar, but more durable.

Trees of 30 years old may produce fruits and seeds abundantly. In Brazil Khaya ivorensis is used for reforestation because of its resistance to Hypsipyla grandellathe major pest of Brazilian mahogany. The high buttresses at the base of the bole often necessitate the construction of a platform before felling can take place, or the removal of the buttresses before felling to recover more timber.

It belongs to subfamily Swietenoideae and seems most closely related to Carapa and Swietenia. It is more or less distinctly demarcated from the creamy white, up to 5 cm wide sapwood.