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- Title
GENETIC AND ENVIRONMENTAL EFFECTS ASSESSMENT IN SCOTS PINE PROVENANCES PLANTED IN CENTRAL SIBERIA.
- Authors
Savva, J. V.; Vaganov, E. A.
- Abstract
Scots pine provenance trials were established in 1964 in forest-steppe and in 1974 in southern taiga zones of Central Siberia from seeds collected over whole Russia. Tree-ring characteristics (radial growth and density chronologies) from 12 and 16 provenances planted in those plantations were measured densitometrically. Tree-ring analysis revealed a retention of a genetically fixed response to climatic factors proper to pines' origin. Trees from higher latitudes keep the orientation towards accelerated growth at the beginning of a growing season, which is followed by a rapid transition to formation of latewood cells and deceleration of growth earlier, than in medium-latitude trees. Main climatic factors controlling tree-rings formation differed slightly between different provenances within plantations. Genetically fixed ability of the provenances are not great (less than 15%), that proves high adaptability of pines to abrupt climatic change. Tree-ring formation of Scots pine provenances is mainly determined by the environmental factors.
- Subjects
SIBERIA (Russia); RUSSIA; SCOTS pine; PROVENANCE trials; TREE-rings; FOREST genetics; CLIMATE change; PINE; PLANT growth
- Publication
Mitigation & Adaptation Strategies for Global Change, 2006, Vol 11, Issue 1, p269
- ISSN
1381-2386
- Publication type
Article
- DOI
10.1007/s11027-006-1026-2