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KEDONDONG (Protium serratum)
Trade Name
Kedondong
Scientific Name
Protium serratum (Wall. Ex Colebr.) Engl.
Family
BURSERACEAE
Common Names
Nihor (India); Najor (India); Murtenga (India); Mirtenga (India); Indian red pear; Protium (Papua New Guinea); Ketos (Indonesia); Kedondong
Scientific Name Synonyms
Bursera serrata Wall. ex Colebr.
Description Of The Tree
Botanical Description
It is a middle sized to large evergreen tree up to 27 m tall and 100 up to 250 cm in diameter. The bole is clear for 9 to 15 m.
Natural Habitat
Protium serratum is reported growing especially in valleys and along water courses.
Natural Distribution
It is reported in the eastern moist zones of Bengal, Assam, Orissa and Myanmar.
Wood Identification
Anatomic Description Of Wood
Vessels per mm2 5 to 20. Wood diffuse porous. Tyloses common. Tangential diameter of vessel lumina 200 micras or more (large). Vestured pits. Vessel-ray pits reticulate and/or foraminate. Simple perforation plates. Vascular/vasicentric tracheides present. Interve Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma aliform. Axial parenchyma confluent. Axial parenchyma bands more than 3 cells wide. Ray height more than 1 mm. 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Prismatic crystals in radial alignment in procumbent ray cells (chambered cells). Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is reddish-brown to dark brown, not clearly differentiated from the sapwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
5
Grain
The grain is interlocked.
Texture
The texture is very fine to moderate fine and even.
Luster
The wood is somewhat lustrous.
Natural Durability
The wood is moderately durable. The sapwood is susceptible to Lyctus.
Natural durability index (1= Very high durability, 7=Vey low durability)
3
Silica Content
Silica Content: The wood has a high silica content which affects wood processing. Silica Value: 1
Resistance To Impregnation
This timber is difficult to impregnate with preservatives.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.75
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.85
Total shrinkage Tangential (Saturated to 0%MC) (%)
7.5
Total shrinkage Radial (Saturated to 0%MC) (%)
5.7
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.3
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
874
Stiffness (MOE) 12%MC (kgf/cm²)
106000
Compression parallel to fiber 12%MC (kgf/cm²)
506
Workability
Sawing
Although sawing of Kedondong is difficult, timber of this species is comparatively easy to saw.
Polishing
It polishes well.
REFERENCED USES
End Uses Summary
EXTERIOR GENERAL, stakes posts, crossties, FURNITURE AND CABINETS, TOOLS, tool handles, CONTAINERS, truck flooring, OTHER AND MUSICAL INSTRUMENTS, pencil
Exterior General
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Stake Posts
- 5 - Propriedades fisicas e mecanicas da madeira e do contraplacado de Pinus elliottii
Crossties
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Truck Flooring
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
Pencils
- 67 - Maderas latinoamericanas. VIII, Calophyllum brasilense, Couratari panamensis, Dendropanax arboreum y Bombacopsis sessilis
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