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Family variation in the morphology and physiology of white spruce (Picea glauca) seedlings in response to elevated CO2 and temperature

Summary

Published in Journal of Sustainable Forestry 34(3): 169-198. https://doi.org/10.1080/10549811.2014.980895

Tree improvement programs aim to develop families that are well-adapted to future growing conditions. To gain insight into the stability of the family genetic response to climate change, white spruce ( Picea glauca) seedlings from 60 full-sib families were subjected to a combination of two temperature regimes and two levels of CO2 over two growing seasons. There was positive effect of warmer temperatures and higher CO2 on some growth variables but no significant family × treatment interactions. Instantaneous water use efficiency was the only physiological trait that was affected positively by the CO2 treatment, showing a 51% increase that was consistent across families.

Sector(s): 

Forests

Categorie(s): 

Scientific Article

Theme(s): 

Forestry Research, Forests, Seeds and Forest Seedlings Production

Author(s)

CARLES, Sylvie, Delphine BOYER-GROULX, Mohammed S. LAMHAMEDI, André RAINVILLE, Jean BEAULIEU, Pierre BERNIER, Jean BOUSQUET, Josianne DEBLOIS and Hank A. MARGOLIS

Year of publication :

2015

Format :

PDF available upon request

Keywords :

changements climatiques, épinette blanche, variation génétique, familles bi-parentales, CO2, et température, production de semences et de plants, Picea glauca, article scientifique de recherche forestière, seeds and forest seedlings production, Climate change, white spruce, genetic variation, full sub-family, elevated CO2, elevated temperature

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