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Genetic improvement of sawn-board shape stability in Scots pine (Pinus sylvestris L.)

Fundova, Irena and Hallingbäck, Henrik and Jansson, Gunnar and Wu, Harry (2020). Genetic improvement of sawn-board shape stability in Scots pine (Pinus sylvestris L.). Industrial Crops and Products. 157 , 112939
[Journal article]

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Abstract

Adequate shape stability is a prerequisite for utilization of sawn boards in the building industry. This study investigated the possibility of indirect genetic improvement of Scots pine (Pinus sylvestris L.) sawn-board shape stability (specifically the bow, crook and twist) via selective breeding based on traits that can be non-destructively measured on standing trees. Relationships between shape stability and wood quality traits measured on logs and sawn boards were also determined. A total of 1896 standing trees from a 39-year-old Scots pine full-sib progeny test were non-destructively measured. A subset of 496 trees was harvested and sawn into 50 x 100 mm boards, the quality of which was assessed both non-destructively and destructively. Among the traits assessed on standing trees, grain angle (GRA) appeared to be the best predictor of sawn-board twisting and crooking (r(A) = 0.84 and 0.62, respectively). The individual-tree narrow-sense heritability (h(i)(2)) was moderate for twist and GRA (0.37 and 0.40, respectively), low for bow (0.21) and very low for crook (0.05). Selective breeding targeting lower GRA would result in lower twist and crook but could also increase sawn-board density, stiffness and strength.

Authors/Creators:Fundova, Irena and Hallingbäck, Henrik and Jansson, Gunnar and Wu, Harry
Title:Genetic improvement of sawn-board shape stability in Scots pine (Pinus sylvestris L.)
Year of publishing :2020
Volume:157
Article number:112939
Number of Pages:8
Publisher:ELSEVIER
ISSN:0926-6690
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:Grain angle, Bow, Crook, Twist, Genetic correlation, Heritability
URN:NBN:urn:nbn:se:slu:epsilon-p-109339
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109339
Additional ID:
Type of IDID
DOI10.1016/j.indcrop.2020.112939
Web of Science (WoS)000587922300043
ID Code:19769
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Genetics and Plant Physiology
Deposited By: SLUpub Connector
Deposited On:23 Dec 2020 09:43
Metadata Last Modified:15 Jan 2021 19:21

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