scholarly journals Effects of genetic entry and competition by neighbouring trees on growth and wood properties of cloned Norway spruce (Picea abies)

2009 ◽  
Vol 66 (8) ◽  
pp. 806-806 ◽  
Author(s):  
Ane Zubizarreta Gerendiain ◽  
Heli Peltola ◽  
Pertti Pulkkinen ◽  
Seppo Kellomäki
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Wood Properties ◽  
Genetic Entry

Grade yields and wood properties of Norway spruce [Picea abies (L.) Karst.] from the Maritimes

1995 ◽  
Vol 71 (4) ◽  
pp. 473-478
Author(s):  
Y. H. Chui
Keyword(s):  
Mechanical Properties ◽  
Picea Abies ◽  
Norway Spruce ◽  
Wood Quality ◽  
Wood Properties ◽  
Bending Properties ◽  
Clear Wood ◽  
Comparative Information ◽  
Grade Yield

Norway spruce [Picea abies (L.) Karst.] is one of the major non-native softwood species in the Maritimes. A project was undertaken to evaluate the grade yields and mechanical properties of Norway spruce. The project also provided comparative information on the wood quality of two Norway spruce provenances from Germany and Poland. Four plantations were selected for the study with two of these plantations containing trees of known provenances. One plantation was mature and the other three were juvenile. In total, 530 pieces of lumber and the same number of matched small clear specimens were tested for bending properties. Prior to testing, the lumber was visually graded according to both British and Canadian specifications. Quality of lumber varied significantly between sites. Lumber from the Polish provenance had slightly better mechanical properties than that from trees of the German provenance. Compared with published information, the plantation-grown Norway spruce had lower clear wood bending properties and specific gravity than primary eastern Canadian spruce species and balsam fir, and natural Norway spruce grown in Europe. Key words: Norway spruce [Picea abies (L.) Karst.], wood quality, bending properties, grade yield

scholarly journals Identification of Molecular Markers for Selected Wood Properties of Norway Spruce Picea abies L. (Karst.) I. Wood Density

2004 ◽  
Vol 53 (1-6) ◽  
pp. 45-50 ◽  
Author(s):  
T. Markussen ◽  
A. Tusch ◽  
B. R. Stephan ◽  
M. Fladung
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Wood Density ◽  
Wood Properties ◽  
Scar Markers ◽  
Exact Test ◽  
Monomorphic Band ◽  
Subsequent Conversion ◽  
Sib Families ◽  
First Time

AbstractThe identification of AFLP markers and their subsequent conversion to SCAR-markers linked to wood density of Norway Spruce (Picea abies L [Karst.]) is described for the first time. In AFLP-analyses, 102 different primer enzyme combinations were screened in a bulked segregant approach comparing individuals with high and low wood density. A total of 107 polymorphic AFLP fragments were obtained between the DNA-pools. Twenty-three markers were selected for further analyses to verify their linkage to wood density based on individuals used for pool constitution and additional unrelated clonal material. For 15 markers, a significant linkage to wood density was confirmed by a two-sided Fisher’s-exact test. Four markers were converted into SCAR markers and validated for plant material assayed for wood density by X-ray microdensitometry. For each marker a monomorphic band was obtained using sets of nested primers or restriction site-specific primers (RSS), which include the AFLP-restriction recognition sites. For two markers that are linked to high wood density, a separation from unlinked size homologous marker-alleles was realized by a PCR-restriction approach. Validation of these markers in different full-sib families confirmed their usability to separate the classes for low and high wood density of Picea abies.

Trocknungs- und Witterungsverhalten von mondphasengefälltem Fichtenholz (Picea abies Karst.) | Drying and weathering behaviour of Norway Spruce (Picea abies Karst.) wood felled according to moon phases

2003 ◽  
Vol 154 (9) ◽  
pp. 351-359 ◽  
Author(s):  
Ernst Zürcher
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Water Relations ◽  
Wood Properties ◽  
The Moon ◽  
Moon Phases ◽  
Growth Site ◽  
Weathering Behaviour

In order to investigate the significance of the moon phases at the felling date on wood properties of Norway spruce, 30 trees from the same growth site were felled at six different dates during waxing/ascending, and waning/descending moon cycles, respectively. The present work deals especially with the effect on wood-water-relations of the analysed samples, as well as with the effect on some wood properties after weathering. The results show significant differences in the second half of the experimental felling period.

scholarly journals Variation in wood properties among five full-sib families of Norway spruce (Picea abies)

2007 ◽  
Vol 64 (8) ◽  
pp. 799-806 ◽  
Author(s):  
Arne Steffenrem ◽  
Pekka Saranpää ◽  
Sven-Olof Lundqvist ◽  
Tore Skrøppa
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Wood Properties ◽  
Sib Families

Susceptibility of pretreated wood sections of Norway spruce (Picea abies) clones to enzymatic hydrolysis

2012 ◽  
Vol 42 (1) ◽  
pp. 38-46 ◽  
Author(s):  
Yohama Puentes Rodriguez ◽  
Helena Puhakka-Tarvainen ◽  
Ossi Pastinen ◽  
Matti Siika-aho ◽  
Leila Alvila ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Picea Abies ◽  
Norway Spruce ◽  
Wood Density ◽  
Lignin Content ◽  
Trichoderma Viride ◽  
Wood Decay ◽  
Wood Properties ◽  
Acid Pretreatment ◽  
The Relationship

The structure of softwoods, which confers resistance to degradation through hydrolysis and decay, currently limits their use for the production of biofuels. However, since wood is very heterogeneous, it is possible that differences in wood properties within and between trees could differentially affect its processability. In this research, heartwood (inner) and sapwood (outer) from Norway spruce ( Picea abies (L.) Karst.) clones were enzymatically hydrolyzed by Trichoderma viride cellulases after concentrated acid pretreatment. Wood sections with two particle sizes were compared based on their susceptibility to enzymatic hydrolysis, evaluated by assaying the formation of hydrolysis products and measured as reducing sugar yield (RSY). We also studied the relationship between RSY and the susceptibility to Heterobasidion parviporum wood decay and whether these traits are reflected in wood density and yield. Wood from the outer section produced more RSY with higher glucan but lower lignin content than wood from the inner section. Furthermore, susceptibility to enzymatic hydrolysis was positively correlated with H. parviporum wood decay, while both processes were negatively correlated with wood density. Our results revealed the importance of clonal trials for identifying suitable lignocellulosic biomass when considering wood properties and indicate that potential genotypes for the production of biofuels are not necessarily the most productive.

scholarly journals Influence of the Tree Decay Duration on Mechanical Stability of Norway Spruce Wood (Picea abies (L.) Karst.)

Forests ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 980
Author(s):  
Tomasz Jelonek ◽  
Katarzyna Klimek ◽  
Joanna Kopaczyk ◽  
Marek Wieruszewski ◽  
Magdalena Arasimowicz-Jelonek ◽  
...  
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Mechanical Stability ◽  
Health Hazard ◽  
Wood Properties ◽  
Mature Tree ◽  
Spruce Bark ◽  
Spruce Wood ◽  
Standing Trees ◽  
Tree Decay

Wood properties have an influence on the safety around the tree itself as well as on actual possibilities of using wood. The article focuses on the wood properties of the Norway spruce (Picea abies (L.) Karst.) in reference to the time since the tree has decayed. The study was conducted among mature tree stands of spruce in Białowieża Forest, where over the last 10 years there has been a weakening of spruce tree stands due to water deficiency which has contributed to the gradation of the European spruce bark beetle (Ips typographus). The study focused on spruce wood of living and healthy specimens as well as the wood of standing trees which has decayed between one and five years before the sample was collected. The findings indicate a gradual decrease in wood properties as time passed since the physiological decay of the tree. Significant differences in the decrease of mechanical wood properties have been observed in trees which had been decayed for 3 years and they should be considered life and health hazard for people and animals.

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