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IUFRO All Division 5 Meeting 2007. Investigating the effect of tree breeding on the timber properties of Sitka spruce Paul McLean Shaun Mochan John Moore. Harvesting United Kingdom Sitka spruce. Background. Aim to increase yield without loss in quality. - PowerPoint PPT Presentation
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Establishing Timber as a preferred material for construction
IUFRO All Division 5 Meeting 2007
Investigating the effect of tree breeding on the timber properties of Sitka spruce
Paul McLean
Shaun Mochan
John Moore
Event/seminar title
Strategic Integrated Research in Timber
Harvesting United Kingdom Sitka spruce
Event/seminar title
Strategic Integrated Research in Timber
Background
Aim to increase yield without loss in quality.
Investigated progeny selected primarily for:
• Stem straightness• Vigour of growth• Density (pin penetration)• Queen Charlotte Island (QCI) control
Event/seminar title
Strategic Integrated Research in Timber
Materials Overview
Scientific Tree Industrial Tree
Discs Radial & Clears
Strips Logs & Discs
Radial Strips & Battens
–
48 Trees 144 Trees
Event/seminar title
Strategic Integrated Research in Timber
Measurements on standing
trees
Event/seminar title
Strategic Integrated Research in Timber
Event/seminar title
Strategic Integrated Research in Timber
Scientific Trees!
Event/seminar title
Strategic Integrated Research in Timber
Less Branches - Straighter Stems
0 20 40 60 80 100
No of Dead Branches
Density
Vigour
Straightness
QCI
Event/seminar title
Strategic Integrated Research in Timber
Improved Yield
0
100
200
300
400
500
600
Density Vigour Straightness Control
Pred
icte
d Yi
eld
m3/
ha
Event/seminar title
Strategic Integrated Research in Timber
Comparable Stiffness – Structural Sized Timber
Density Vigour Straightness QCI
Mo
du
lus
of
Ela
stic
ity
kN/m
m2
Event/seminar title
Strategic Integrated Research in Timber
Clear Wood Properties
MFA DENSITY
STIFFNESS STRENGTH
QCI
VIGOUR
STRAIGHT.
DENSITY
Event/seminar title
Strategic Integrated Research in Timber
What Have We Seen…
A successful increase in volume
Future breeding for timber quality should be possible
The research didn’t end here…
Event/seminar title
Strategic Integrated Research in Timber
Acknowledgements
Scottish Funding Council
BBSRC Forest Research STFI – Packforsk HOWIES Forest
Products Everyone who lent a
hand
THANKS!
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