AGRIS

Data provider:

Icon data provider

It is the biggest library of agricultural literature in Latvia, the deposit library of the UN Food and Agriculture Organisation and the national centre of the information systems AGRIS and CARIS.

Journal Article

Journal Article

Associations between growth and resistance-related heartwood traits in Scots pine  [2012]

Harju, A., Finnish Forest Research Inst., Punkaharju (Finland). Punkaharju Research Unit.; Venaelaeinen, M., Finnish Forest Research Inst., Punkaharju (Finland). Punkaharju Research Unit.; Haapanen, M., Finnish Forest Research Inst., Vantaa (Finland). Vantaa Research Unit.;

Access the full text

  • NOT AVAILABLE
Until the era of impregnated timber the heartwood of Scots pine (Pinus sylvestris L.) was traditional material in constructions prone to decay. Along with increasing concern about the ecological impacts of wood preservation chemicals, the natural durability of wooden structures has become important again. In Scots pine heartwood timber, the concentration of stilbenes and total phenolics has proven to be a good predictor of resistance against brown rot fungus Coniophora puteana (Schum. Ex Fr.) Karst., a cellar fungus. Thus, the concentration of these extractives could be used to indirectly measure durability of wood. The goal of our studies has been to describe the phenotypic and genetic variation in the traits associated to natural resistance to decay and to estimate their relation to growth traits. To study preconditions of improving the quality and quantity of Scots pine heartwood timber by means of selective breeding, we estimated phenotypic and genetic parameters for stem diameter, wood density, the amount of heartwood and the concentration of stilbenes and total phenolics in the heartwood. Phenotypic variation in all the traits was large. For stilbenes and total phenolics as well as wood density heritability was higher than 0.5, and thus a large part of the variation was attributed to genetic differences among the families. As for stem diameter and the amount of heartwood the heritability ranged from 0.1 to 0.3, and the environmental effect was more p
ronounced. The phenotypic and genetic correlations between stem diameter, wood density, and the heartwood traits were generally small, which indicates them to be mostly genetically independent on each other. Based on this preliminary study, we conclude that it would be possible to select for trees with a larger proportion of heartwood and better decay resistance without causing a significant loss in volume growth. Possibilities of vegetative propagation will be discussed.

Access the full text

  • NOT AVAILABLE
Loading...

Bibliographic information

Language:
English
Type:
Conference
In AGRIS since:
2013
Volume:
25
Issue:
58
Start Page:
172
All titles:
" Associations between growth and resistance-related heartwood traits in Scots pine "
Other:
" Summary only "

From the journal

Speciālais izdevums

ISSN : 1407-270X