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Phenotypic Variability and Differences in the Drought Response of Norway Spruce Pendula and Pyramidalis Half-Sib Families
- Source :
- Forests, Vol 12, Iss 947, p 947 (2021), Forests, Volume 12, Issue 7
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- In a changing climate, forest managers need to select productive and climate-change-resilient tree species and provenances. Therefore, assessing the growth response of provenances growing in field trials to climate provides useful information for identifying the more appropriate provenance or variety. To determine the genetic gain through selection of the most productive and resilient families and to decipher the role of crown forms of Norway spruces (Picea abies (L.) Karst.), we used 24 families with a classical crown (pyramidalis) and 24 with a narrow crown (pendula) from eight provenances, growing in a 25-year-old comparative trial. The annual wood characteristics (ring width and early- and latewood), the wood resistance (expressed by latewood proportion (LWP)), and the growth response to climate of the two spruce crown forms were investigated. No significant differences between the two spruce forms were found regarding the ring width characteristics. However, three pendula families of Stâna de Vale I provenance exhibited the highest LWP and could be included in a future selection strategy, the respective trait having also high heritability. Radial growth was positively and significantly correlated with previous September and current July precipitation and negatively with current June temperature. Both spruce forms showed good recovery capacity after a drought event.
- Subjects :
- 0106 biological sciences
genetic gain
Provenance
radial increments
010504 meteorology & atmospheric sciences
Climate change
breeding strategy
01 natural sciences
QK900-989
Plant ecology
0105 earth and related environmental sciences
Resistance (ecology)
biology
fungi
Crown (botany)
wood characteristics
Forestry
Picea abies
Heritability
biology.organism_classification
climate change
Agronomy
Genetic gain
Trait
010606 plant biology & botany
Subjects
Details
- ISSN :
- 19994907
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Forests
- Accession number :
- edsair.doi.dedup.....2239ab5c4052bfed0e72f48b771adec9