Sökning: id:"swepub:oai:DiVA.org:lnu-77386" >
Optimal timing of e...
Optimal timing of early genetic selection for sawn timber traits in Picea abies
-
- Hallingbäck, Henrik (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Institutionen för växtbiologi,Department of Forest Genetics and Plant Physiology,Department of Plant Biology,Swedish University of Agricultural Sciences, Sweden
-
- Högberg, Karl-Anders (författare)
- Skogforsk, Sweden
-
- Säll, Harald, 1957- (författare)
- Linnéuniversitetet,Institutionen för skog och träteknik (SOT)
-
visa fler...
-
- Lindeberg, Johan (författare)
- Linnéuniversitetet,Institutionen för skog och träteknik (SOT),Linnaeus University
-
- Johansson, Marie, 1973- (författare)
- Linnéuniversitetet,Institutionen för byggteknik (BY)
-
- Jansson, Gunnar (författare)
- Skogforsk, Sweden,Forestry Research Institute of Sweden, Skogforsk
-
visa färre...
-
(creator_code:org_t)
-
- 2018-06-15
- 2018
- Engelska.
-
Ingår i: European Journal of Forest Research. - : Springer. - 1612-4669 .- 1612-4677. ; 137:4, s. 553-564
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://link.springe...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://res.slu.se/i...
-
visa färre...
Abstract
Ämnesord
Stäng
- In breeding Norway spruce, selection for improved growth and survival is performed at age 10-15 years in order to optimize genetic gain per year. We investigated whether a selection based on wood traits such as density and grain angle, measured under bark in the field at the same age would be informative enough with respect to structural quality traits of sawn boards. To achieve this objective, a sawing study was conducted on the butt logs of 401 trees from a 34-year-old Norway spruce progeny trial situated in southern Sweden. Stem discs were excised from the top of the logs and radial profile data of grain angle, and wood density was recorded for specific annual rings. The sawn and dried boards were assessed for structural traits such as twist, board density, bending stiffness (static modulus of elasticity, sMoE) and bending strength (modulus of rupture, MoR). Additive genetic correlations (r (a)) between single annual ring density measurements and board density, sMoE and MoR were consistently strong (r (a)> 0.7) for annual rings 5-13. Genetic correlations of similar magnitude between grain angle and board twist were estimated for all investigated annual rings (from 2 to around 26 under bark). Consequently, it was found that indirect selection for wood density and grain angle at the tree age 10-16 years would result in more genetic gain per year than selection at later ages. This makes it feasible to perform simultaneous selection of progeny in the field for both growth and wood traits at similar ages.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Trävetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Wood Science (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)
Nyckelord
- Early selection
- Grain angle
- Wood density
- Sawmill study
- Structural quality traits
- Quantitative genetics
- Forestry and Wood Technology
- Skog och träteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas