Mechanisms of xylem recovery from winter embolism in Fagus sylvatica

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Mechanisms of xylem recovery from winter embolism in Fagus sylvatica.

Hydraulic conductivity in the terminal branches of mature beech trees (Fagus sylvatica L.) decreased progressively during winter and recovered in the spring. The objective of this study was to determine the mechanisms involved in recovery. Two periods of recovery were identified. The first recovery of hydraulic conductivity occurred early in the spring, before bud break, and was correlated with...

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Winter embolism, mechanisms of xylem hydraulic conductivity recovery and springtime growth patterns in walnut and peach trees.

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Xylem vulnerability to cavitation is a key parameter in understanding drought resistance of trees. We determined the xylem water pressure causing 50% loss of hydraulic conductivity (P(50)), a proxy of vulnerability to cavitation, and we evaluated the variability of this trait at tree and population levels for Fagus sylvatica. We checked for the effects of light on vulnerability to cavitation of...

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ژورنال

عنوان ژورنال: Tree Physiology

سال: 2001

ISSN: 0829-318X,1758-4469

DOI: 10.1093/treephys/21.1.27