摘要：

Loss of hydraulic conductivity (embolism), sugar fluxes and pH were measured in stem fragments from 1-year-old twigs of Juglans regia cv. Franquette growing in an orchard near Clermont-Ferrand or in pots. Embolism increased during the winter due to alternation of frosts and thaws but was totally repaired before bud break by winter stem pressurization. The variations in water status were tempera...

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