1. Wood Quality - Definitions
A measure of the aptness of wood for a given use.
A measure of the characteristics of wood that influence the properties of products made from it.
A changeable attribute that is characterized by a dynamic balance among intrinsic properties, economic value and consumer satisfaction over a period of time.
The resultant of physical and chemical characteristics possessed by a tree or part of a tree that enables it to meet the property requirements for different end products. In other words, the intrinsic quality of wood evaluated solely in terms of its suitability for various products or end uses.

2. Forestry Management Options Tree Growth Wood Properties
influences
determines
determines
influences
Forestry Management Options
Tree Growth
Wood Properties
Technical Performance
Acceptance For End Use
influences
influences
Size
Cost of management and silviculture
influences
influences
Price

3. *
Foresters’ Growth Wood Technical Options Characteristics Properties Performance Cultivate a) Stem form 1. Density Strength Irrigate (i) size Texture Drying behaviour Fertilize (ii) straightness Improve stock (iii) taper 3. Grain direction Stability in service Planting distance b) Branching 4. Knot size and number Sawing and machining Juvenile space Thin c) Ring structure 5. Fiber characteristics Mechanical fastening Prune (i) juvenile wood d) Spiral grain Uniformity Choose rotation age (ii) reaction wood Decay resistance Treatability

4. * Wood properties 1. Density 2. Texture 3. Grain direction
4. Knot size and number
5. Fiber characteristics
(i) juvenile wood
(ii) reaction wood
Technical performance
Strength
Drying behaviour
Stability in service
Machining
Mechanical fastening
Uniformity
Decay resistance
Treatability

5. * Growth characteristics (a) Stem form (b) Branching
(i) size
(ii) straightness
(iii) form
(b) Branching
(c) Ring structure
(d) Spiral grain
Wood properties
1. Density
2. Texture
3. Grain direction
4. Knot size and number
5. Fiber characteristics
(i) juvenile wood
(ii) reaction wood

6. Wood Quality wood density uniformity of growth rings % heartwood
fibre length
% reaction wood % juvenile wood
knots
grain straightness