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sap flow
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View O. A. C. Review Volume 26 Issue 7, April 1914 By Ontario Agricultural College
O. A. C. Review Volume 26 Issue 7, April 1914
O. A. C. Review Volume 26 Issue 7, April 1914
By Ontario Agricultural College
View Reversible variations in volume, pressure, and movements of sap in trees By MacDougal, Daniel Trembly 
Reversible variations in volume, pressure, and movements of sap in trees
By MacDougal, Daniel Trembly