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IUFRO All Division 5 Meeting 2007

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.

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IUFRO All Division 5 Meeting 2007

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  1. 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

  2. Harvesting United Kingdom Sitka spruce

  3. 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

  4. Scientific Tree Industrial Tree Lo gs & Radial Strips Discs Radial & Clears Strips Discs & Battens Materials Overview 48 Trees 144 Trees –

  5. Measurements on standing trees

  6. Scientific Trees!

  7. Less Branches - Straighter Stems QCI Straightness Vigour Density

  8. Improved Yield

  9. Comparable Stiffness – Structural Sized Timber Modulus of Elasticity kN/mm2 QCI Vigour Straightness Density

  10. Clear Wood Properties MFA DENSITY QCI STRAIGHT. VIGOUR STIFFNESS STRENGTH DENSITY

  11. What Have We Seen… • A successful increase in volume • Future breeding for timber quality should be possible • The research didn’t end here…

  12. Acknowledgements • Scottish Funding Council • BBSRC • Forest Research • STFI – Packforsk • HOWIES Forest Products • Everyone who lent a hand THANKS!

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