TY - JOUR
T1 - Simultaneous measurement of oxygen, carbon dioxide, and water vapour exchange in intact plants
AU - Kaplan, A.
AU - Gale, J.
AU - Poljakoff-mayber, Alexandra
PY - 1976/4
Y1 - 1976/4
N2 - A low flow of air is passed through a temperature-controlled plant chamber in order to obtain relatively large (∼300-500 μl-1) differences in [O2] between influx and efflux streams. These differences are measured with a stabilized O2 electrode system incorporating elements of gas conditioning electronic zero suppression and signal amplification. Changes in [O2] of 400 μl l-1 can be detected at full scale recorder deflection against a background concentration of 21% O2. The concentrations of CO2 and H2O within the chamber are held constant by con-trolled-flow CO2-scrubbing and dehumidifying loops. Carbon dioxide, H2O, and O2 fluxes are measured and leaf diffusion resistance and internal [CO2] are calculated in essentially 'real time'.
AB - A low flow of air is passed through a temperature-controlled plant chamber in order to obtain relatively large (∼300-500 μl-1) differences in [O2] between influx and efflux streams. These differences are measured with a stabilized O2 electrode system incorporating elements of gas conditioning electronic zero suppression and signal amplification. Changes in [O2] of 400 μl l-1 can be detected at full scale recorder deflection against a background concentration of 21% O2. The concentrations of CO2 and H2O within the chamber are held constant by con-trolled-flow CO2-scrubbing and dehumidifying loops. Carbon dioxide, H2O, and O2 fluxes are measured and leaf diffusion resistance and internal [CO2] are calculated in essentially 'real time'.
UR - http://www.scopus.com/inward/record.url?scp=33749247334&partnerID=8YFLogxK
U2 - 10.1093/jxb/27.2.214
DO - 10.1093/jxb/27.2.214
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AN - SCOPUS:33749247334
SN - 0022-0957
VL - 27
SP - 214
EP - 219
JO - Journal of Experimental Botany
JF - Journal of Experimental Botany
IS - 2
ER -
