Select Language:  

logo

< Back DOI (Alphitonia zizyphoides) Print Friendly View

< Back Print Friendly View

DOI (Alphitonia zizyphoides)

Trade Name

Doi

Scientific Name

Alphitonia zizyphoides (Spreng)A.Gray

Family

Rhamnaceae

Common Names

Doi (Fiji)

Description Of The Tree

Botanical Description

Average bole length of 10 m,up to an 18 m maximum.

Natural Habitat

A common constituent of the low land rainforest ,secondary vegitation and riverine formation. Occupies marginal position in tall rainforest. Native to the Pacific region.

Non Timber Uses

Doi is a medium density hardwood, it has yet to be commercially recognized but has potential uses which include building timber, flooring, moulding, furniture, paneling, and so on.

View More Information

Wood Identification

Anatomic Description Of Wood

Vessels per mm2 6 to 10 (medium). Tangential diameter of vessel lumina 150 to 200 micras (medium). Vessels in radial multiples of 2 to 4. Occasionally vessels in radial multiples of 4 or more common. Axial parenchyma in discontinuous tangential lines. Paratracheal axial parenchyma scanty and/or vasicentric.

Availability

Cites Status

Unrestricted

General Wood Description

Color

Doi has a pale pinkish-brown sapwood ,up to 100 mm wide. The heartwood is orange-brown to red-brown in color, somewhat lustrous on radial faces. Dark resinous exudates and sometimes whitish deposits are a feature of a few of the vessels.

COLOR INDEX (1=Black, 7=Light yellow,white)

3

Grain

Grain straight.

Texture

Texture is intermediate.

Natural Durability

Sapwood is immune or rarely susceptible to Lyctus attack. Heartwood is not durable, being rated adequate only for hazard 1 end uses. Timber out of ground contact, continuously protected from the weather. Stock liable to blue-stain an yellow fungal stain.

Natural durability index (1= Very high durability, 7=Vey low durability)

5

Wood Physical Properties

Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)

0.50

Air-dry Density (Weight and volume at 12%MC) (g/cm³)

0.61

Total shrinkage Tangential (Saturated to 0%MC) (%)

5.1

Total shrinkage Radial (Saturated to 0%MC) (%)

2.6

Recommended Dry Kiln Schedule

Fiji-5

Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)

2.0

Wood Chemical Properties

Wood Mechanical Properties

Bending Strength (MOR),12%MC (kgf/cm²)

650

Stiffness (MOE) 12%MC (kgf/cm²)

105000

Workability

Sawing

Doi is easy to saw and machine either in the green or dry condition and results are generally very satisfactory. Some sawn and turned surfaces may be slightly fibrous, but not to any significant degree.

Rotary Veneer Cutting

Very limited testing suggests that peeling and drying properties are satisfactory, but overall suitability appears to be limited by various discolourations and defects. In addition, gum exudations may affect finishing properties.

Sliced Veneer

Very limited testing suggests that peeling and drying properties are satisfactory, but overall suitability appears to be limited by various discolourations and defects. In addition, gum exudations may affect finishing properties.

REFERENCED USES

End Uses Summary

HOUSING GENERAL, flooring, panelling, FURNITURE AND CABINETS, cabinets, OTHER AND MUSICAL INSTRUMENTS, moldings

Flooring
  • 14 - Handbook of Hardwoods
Paneling
  • 18 - W3TROPICOS Missouri Botanical Garden
Furniture Cabinets
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Cabinet
  • 24 - Empire Timbers
Molding
  • 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão

Please Provide Information To View Producer Information

* Or, continue as guest