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Trade Name

Balakat

Scientific Name

Ziziphus talanai (Blanco) Merr.

Family

RHAMNACEAE

Common Names

Blakat; Balakat (Philippines); Talanai (Philippines); Aligamen (Philippines)

Scientific Name Synonyms

Ziziphus zonulata Blanco; Ziziphus arborea Merr.

Description Of The Tree

Botanical Description

It is large tree up to 30 m and 100 cm in diameter. The bole is long and cylindrical.

Natural Habitat

Ziziphus talanai is a timber species endemic to the Philippines. It is found scattered in lowland primary or secondary forests, up to 1,000 m of altitude. Rates of habitat loss through logging and shifting cultivation have led to considerable population d

Wood Identification

Anatomic Description Of Wood

Wood diffuse porous.Colored deposits in heartwood vessels.Occasionally vestured pits.Vessels per mm2 5 to 20.Simple perforation plates.Occasionally multiple perforation plates.Vessel-ray pits similar to intervessel pits in size and shape.Intervessel pits Axial parenchyma in marginal or in seemingly marginal bands.Occasionally apotracheal axial parenchyma diffuse and/or diffuse in aggregates.Paratracheal axial parenchyma scanty and/or vasicentric.Occasionally axial parenchyma aliform.Axial parenchyma confl Rays more than 10 per mm (abundant).Occasionally rays exclusively uniseriate.Prismatic crystals in the ray cells.Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent).Occasionally body ray cells procumbent with one row of upright and/or Fibers very thick walled.Fibers with simple to minutely bordered pits.

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

Availability

Cites Status

Unrestricted

General Wood Description

Color

The sapwood is not sharply defined from heartwood, which is light red or reddish-brown.

Grain

The grain is straight, occasionally wavy.

Texture

Texture is reported to be fine to medium.

Luster

It is reported to be high in luster.

Natural Durability

The heartwood is susceptible to dry-wood termites.

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

5

Resistance To Impregnation

It is easy to treat with preservatives.

Wood Physical Properties

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

0.62

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

0.68

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

7.0

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

4.0

Drying Defects

Ease of Drying: Drying is rather slow and sometimes difficult to perform. Drying Defects: Risks of checks and distortions. Kiln Schedules: The kiln schedule has been tested.

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

1.8

Wood Chemical Properties

Wood Mechanical Properties

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

931

Stiffness (MOE) 12%MC (kgf/cm²)

97378

Compression parallel to fiber 12%MC (kgf/cm²)

463

Compression perpendicular to fiber 12%MC (kgf/cm²)

85

Shear strength radial 12%MC (kgf/cm²)

132

Janka hardness (side) 12%MC (kgf)

521

Janka hardness (end grain) 12%MC (kgf)

711

Workability

Sawing

Sawmilling of this species is reportedly easy.

Rotary Veneer Cutting

This species is reported to have good characteristics for lamination.

Sliced Veneer

This species is reported to have good characteristics for lamination.

Machining

It is easy to machine.

Planing

Planing operations are rather easy.

Moulding

Molding of this species is reported to be easy.

Turning

30

Boring

Boring is reported to be easy.

Mortising

Mortising of this species is reported to be easy.

Finishing

The response of this species in finishing is good to fair.

REFERENCED USES

End Uses Summary

HOUSING GENERAL,FURNITURE AND CABINETS,cabinets,PLYWOOD AND VENEER,TURNING,SPORTS,TOOLS,tool handles,PACKING

General Housing
  • 10 - Silica in Timbers
Furniture Cabinets
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Cabinet
  • 24 - Empire Timbers
Panels, Veneers
  • 25 - Directory of Timber Trade Malaysia
Turning
  • 30 - Embassy of Honduras in Japan
Sports
  • 38 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Tools
  • 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
  • 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Packing
  • 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas

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