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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).

  • Wood Macro Photo Tangential Plane
  • Wood Micro Photo Of Transversal Section

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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