Genetic variation of xylem hydraulic properties shows that wood density is involved in adaptation to drought in Douglas-fir (<Emphasis Type="Italic">Pseudotsuga menziesii</Emphasis> (Mirb.)) |
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| Authors: | Guillermina Dalla-Salda Alejandro Martinez-Meier Hervé Cochard Philippe Rozenberg |
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| Institution: | 1.Instituto Nacional de Tecnología Agropecuaria (INTA) Bariloche,Unidad de Ecología Forestal,San Carlos de Bariloche,Argentina;2.Instituto Nacional de Tecnología Agropecuaria (INTA) Bariloche,Unidad de Genética Ecológica y Mejoramiento Forestal,San Carlos de Bariloche,Argentina;3.Institut National de la Recherche Agronomique (INRA) Clermont-Ferrand, PIAF,Clermont-Ferrand,France;4.Institut National de la Recherche Agronomique (INRA) Orléans,Unité Amélioration Génétique et Physiologie Forestières,Orléans Cedex 2,France |
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| Abstract: |
Introduction
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 on fitness. We have
used new, relatively high-throughput phenotyping methods to estimate genetic variation of wood hydraulic specific conductivity
(k
s) and vulnerability to cavitation (VC) as an important step toward demonstrating the adaptive value of wood density. |
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| Keywords: | |
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