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NYATOH (Diploknema sebifera)
Nome comercial
Nyatoh
Nome científico (autor)
Diploknema sebifera Pierre
Família
SAPOTACEAE
Nomes comuns
Merading (Indonesia); Nyatoh puteh (Sabah); Nyatoh kekabu (Malaysia); Putat (Indonesia); Nyatoh kalan (Indonesia)
DESCRIÇÃO DA ÁRVORE
Descrição botânica
It is an evergreen, medium-sized to large trees up to 48 m tall. The bole is columnar, up to 115 cm in diameter, without buttresses.
Habitat natural
This species is reported to grow in primary forests, on sandy or loamy soils, up to 300 m of altitude.
IDENTIFICAÇÃO DA MADEIRA
Descrição anatômica da madeira (macro e micro)
Wood diffuse porous. Occasionally vessels in radial multiples of 4 or more common. Occasionally vessels with colored deposits. Tyloses common. Vessels per mm2 less than 6 (rare). Vessel-ray pits reticulate and/or foraminate. Simple perforation plates. Intervesse Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. Crystal sand. 3 to 4 cells per parenchyma strand. Occasionally 5 to 8 cells per parenchyma strand. Axial parenchyma in narrow bands on l 4 to 10 rays per mm (medium). Ray height more than 1 mm. Body ray cells procumbent with over 4 rows of upright and/or square marginal cells (Kribs-I). Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Fibers with simple to minutely bordered pits.
DISPONIBILIDADE
Situação CITES sobre a proteção
Unrestricted
DESCRIÇÃO GERAL DA MADEIRA
Cor
The heartwood is reddish-brown, not sharply demarcated from the pale red sapwood.
Indice de cor
4
Grã
The grain is straight, occasionally wavy.
Veios ou desenhos na superfície
The texture varies from rather fine to coarse.
DURABILIDADE NATURAL
It is moderately durable for interior use and non-durable to moderately durable when exposed to the weather or in contact with the ground.
Indice de durabilidade natural
6
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade seca ao ar 12% (g/cm³)
0.52
Contração Tangencial Total (Saturado até peso seco) (%)
3.2
Defeitos causados pela secagem
Ease of Drying: The wood dries fairly slowly. Boards 15 mm thick take 2.5 to 4 months to air dry from green to 15% moisture content. Drying Defects: Slight bowing and staining are reported. Kiln Schedules: Schedule recommended for Litsea.
PROPRIEDADES QUÍMICAS DA MADEIRA
PROPRIEDADES MECÂNICAS DA MADEIRA
TRABALHABILIDADE
Aspectos do processamento em máquinas
The wood is soft and easy to work.
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
HOUSING GENERAL, flooring, FURNITURE AND CABINETS, cabinets, PLYWOOD AND VENEER, PACKING, NAVAL CONSTRUCTION, boats
CASAS
- 10 - Silica in Timbers
Pisos
- 14 - Handbook of Hardwoods
MÓVEIS GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Gabinetes
- 24 - Empire Timbers
CHAPAS
- 25 - Directory of Timber Trade Malaysia
PALETES PARA EMBALAGENS
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
CONSTRUÇÃO NAVAL
- 55 - Tropical Timber Atlas of Latin America
Barcos
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
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