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GOIABAO (Planchonella pachycarpa)
Trade Name
Goiabao
Scientific Name
Planchonella pachycarpa
Family
SAPOTACEAE
Common Names
Goiabão (Brazil); Goiabao (Brazil); Gogó-De-Guariba (Brazil); Abiurana-Goiaba (Brazil); Abiurana-Amarela (Brazil); Abiurana (Brazil)
Description Of The Tree
Botanical Description
It is a rather small tree, with commercial lengths up to 8 m and diameters of 50 cm in the average. The boles are straight.
Natural Distribution
This species is reported to be present in the Lower Amazon, in Brazil.
Wood Identification
Anatomic Description Of Wood
Occasionally vessels in diagonal and/or radial pattern. Tyloses common. Occasionally tangential diameter of vessel lumina 100 micras or less. Vessel-ray pits similar to intervessel pits in size and shape. Occasionally vascular/vasicentric tracheides present. I Axial parenchyma in continuous tangential lines (included in reticulate and scalariform). Rays more than 10 per mm (abundant). Rays exclusively uniseriate. Silica bodies in the ray 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 sapwood is not differentiated. The heartwood is straw yellow in color.
COLOR INDEX (1=Black, 7=Light yellow,white)
6
Grain
The grain is frequently straight, sometimes irregular.
Texture
The texture of wood is described as fine.
Natural Durability
It has little resistance against wood degrade organisms.
Natural durability index (1= Very high durability, 7=Vey low durability)
5
Resistance To Impregnation
This species is reportedly moderately permeable to preservatives.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.80
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.91
Total shrinkage Tangential (Saturated to 0%MC) (%)
12.3
Total shrinkage Radial (Saturated to 0%MC) (%)
6.5
Recommended Dry Kiln Schedule
BR-A
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.9
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1448
Stiffness (MOE) 12%MC (kgf/cm²)
158515
Compression parallel to fiber 12%MC (kgf/cm²)
777
Compression perpendicular to fiber 12%MC (kgf/cm²)
115
Shear strength radial 12%MC (kgf/cm²)
178
Janka hardness (side) 12%MC (kgf)
1200
Janka hardness (end grain) 12%MC (kgf)
1393
Workability
Sawing
This species is easy to saw.
Rotary Veneer Cutting
This species is interesting for slicing.
Sliced Veneer
This species is interesting for slicing.
Blunting Effect
It has a slight to moderate blunting effect on the cutting tools.
Planing
It is easy to plane.
Turning
30
Nailing
This species tends to split in nailing, pre-boring is necessary.
Gluing
This species is easy to glue.
Polishing
It is easy to polish.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, flooring, steps, panelling, FURNITURE AND CABINETS, PLYWOOD AND VENEER, TURNING, cutlery, TOOLS, tool handles, OTHER AND MUSICAL INSTRUMENTS, handicrafts
General Housing
- 10 - Silica in Timbers
Flooring
- 14 - Handbook of Hardwoods
Steps
- 17 - Tree Conservation Database
Paneling
- 18 - W3TROPICOS Missouri Botanical Garden
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Turning
- 30 - Embassy of Honduras in Japan
Knife Handles
- 33 - Embassy of Gabon in Japan
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Handcraft
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
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