Temas
Mostrando ítems 1-10 de 10
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Analyse rétrospective de l’adaptation à la sécheresse chez le douglas
(Swiss Forestry Society and Allen Press, 2012-03)For a number of years in certain regions of France the Douglas-fir trees (Pseudotsuga menziesii [Mirb.] Franco) have presented symptoms of withering which have been attributed to drought. Our results show that the hydraulic ... -
Dynamics of cavitation in a Douglas-fir tree-ring: transition-wood, the lord of the ring?
(INRA, 2014-11)The objective of this work wa s to investigate the dynamics of embolism formation within a Douglas fir tree ring . Four resistant and four vulnerable 10 year old trees were selected among 50 trees, based on their P 50 . ... -
Genetic control of the tree-ring response of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) to the 2003 drought and heat-wave in France
(Springer, 2008)The genetic control of tree ring growth in Douglas-fir in response to the drought and heat-wave that occurred in 2003 in Europe was studied with microdensity profiles in three clonal experiments located in three different ... -
Genetic variation of xylem hydraulic properties shows that wood density is involved in adaptation to drought in Douglas-fir (Pseudotsuga menziesii (Mirb.))
(Springer, 2011-05)Relationships between wood density and hydraulic efficiency and safety (hydraulic specific conductivity and vulnerability to cavitation, respectively) could clarify the physiological process explaining the impact of density ... -
Performance of alternative spatial models in empirical Douglas-fir and simulated datasets
(Springer, 2019-05-13)Based on an empirical dataset originating from the French Douglas-fir breeding program, we showed that the bidimensional autoregressive and the two-dimensional P-spline regression spatial models clearly outperformed the ... -
Reponse du Douglas a des evenements climatiques extremes
(Edición del Autor, 2009-01-13)La température de la terre a augmenté de 0,7 °C au cours du siècle dernier, ce qui correspond à une vitesse de réchauffement jamais observée auparavant. Les prévisions et la particularité du changement climatique global, ... -
Ring density record of phenotypic plasticity and adaptation to drought in Douglas-fir
(Elsevier, 2009-08)Microdensity profiles of Douglas-fir’s clones and weather data were used to study phenotypic plasticity (dendroplasticity). Within-ring microdensity was interpreted as the variation of tree response to drought constraints ... -
Variation of wood density and hydraulic properties of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) clones related to a heat and drought wave in France
(Elsevier, 2009-01)Drought response of three Douglas-fir clones (slow, intermediate and fast growing) inhabiting two different climatic regimes in France was examined.We used the hydraulic conductivity and the percent loss of conductivity ... -
What is hot in tree rings? The wood density of surviving Douglas-firs to the 2003 drought and heat wave
(Elsevier, 2008-08)In a global warming scenario, drought and heat waves like the one that occurred in 2003 in Europe are expected to become more intense and frequent. This extreme climate event strongly affected the hydraulic balance in many ... -
Wood density proxies of adaptive traits linked with resistance to drought in Douglas fir (Pseudotsuga menziesii (Mirb.) Franco)
(Springer, 2014-10)A comparison of dead and surviving Douglas fir trees following the 2003 drought was made to define proxies of adaptive traits for resistance to drought. Increment cores were sampled from trees from three French regions: ...