A portable system for simultaneous measurement of transpiration and CO2 exchange.
A portable field system for simultaneous measurement of transpiration and CO2 exchange from leaves of fruit trees is described. CO2 concentration is measured by means of infra-red gas analysis, using small gas samples collected in syringes. Methods for analysing small gas samples are compared. The leaf chamber described can also be used in a conventional laboratory open gas-exchange system, its small volume permitting measurement of very rapid changes in gas exchange in response to experimental stimuli.
East Malling Research Station, East Malling, ME19 6BJ, Maidstone, Kent, U. K..
L
L
Fanjul
H G
HG
Jones
K J
KJ
Treharne