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A mechanical interpretation of pressure chamber measurements--what does the strength of the squeeze tell us?

Roderick, Michael; Canny, Martin


Argument still continues about what properties of a plant organ the pressure chamber measures. A mechanical (as opposed to a thermodynamic) analysis is made of the system squeezed by the pressurized gas, the non-gaseous part of the leaf. The boundary of the system is defined so that it remains at constant mass, and constant density is assumed, during the squeeze. This is equivalent to assuming constant volume. On those assumptions, it is shown that the liquid is brought to the cut surface by a...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Plant Physiology and Biochemistry
DOI: 10.1016/j.plaphy.2005.02.014


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