Zusammenfassung
Das große Spektrum der genutzten Messmethoden verdeutlicht, wie wichtig die Analyse des Pflanzenwasserzustandes in den experimentellen Pflanzenwissenschaften ist. Es verdeutlicht aber auch die Schwierigkeiten, die mit der exakten Bestimmung des Gesamtwasserpotenzials und seiner Komponenten verbunden ist. In diesem Kapitel wird die Druckkammermethode als ein „Klassiker“ zur Bestimmung des Gesamtwasserpotenzials von pflanzlichen Organen vorgestellt. Detailliert wird auf die Druck-Volumen-Analyse eingegangen, woraus sich Druckpotenzial und Ψ Π ableiten lassen. Abschließend wird die sogenannte Sperry-Apparatur zur Ermittlung der hydraulischen Leitfähigkeit in pflanzlichen Organen eingeführt.
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Matyssek, R., Herppich, W.B. (2017). Experimentelle Pflanzenökologie: Methoden der Wasserzustandsmessung – Druckkammer und Druck-Volumen-Analyse. In: Experimentelle Pflanzenökologie. Springer Reference Naturwissenschaften . Springer Spektrum, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-53493-9_20-1
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