Premium
A new method of measuring water potential in tree stems by water injection
Author(s) -
EDWARDS W. R. N.,
JARVIS P. G.
Publication year - 1981
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/1365-3040.ep11604670
Subject(s) - xylem , volumetric flow rate , flow (mathematics) , water flow , tree (set theory) , mechanics , chemistry , environmental science , mathematics , botany , soil science , biology , physics , mathematical analysis
. A new method of measuring xylem water potential in the stems of trees is described. The flow rate of water injected into the xylem at two or more known pressures is measured. The xylem water potential is derived either graphically from the relationship between flow rate and applied pressure, or from the solution of simultaneous flow equations.