biologia plantarum

International journal on Plant Life established by Bohumil Nìmec in 1959

Biologia plantarum 25:419-424, 1983 | DOI: 10.1007/BF02903139

Net CO2 exchange rates and diffusion resistance of leaves from chicory selections during vegetative growth

H. Huygens1, I. Impens1, J. Lips2
1 Department of Biology, University of Antwerpen, U.I.A., Wilrijk, Belgium
2 National Institute of Agricultural Engineering, C.L.O., Merelbeke, Belgium

Net CO2 exchange rates, stomatal and internal resistances for CO2-transport were followed on fully expanded Witloof chicory leaves (Cichorium intybus L. cv. Foliosum) for several months during vegetative growth. Maximum net CO2 exchange rate (Pmax) stayed high with a sudden drastic drop at the end of the growing season largely due to an increase in internal diffusion resistance.
During an analogous growth period the H2O vapour diffusion resistances of leaves for four selections were measured. The adaxial stomatal resistance was always higher than the abaxial one. Stomatal densities calculated for those selections showed higher values at the abaxial leaf side.

Received: March 20, 1983; Accepted: April 12, 1983; Published: November 1, 1983  Show citation

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Huygens, H., Impens, I., & Lips, J. (1983). Net CO2 exchange rates and diffusion resistance of leaves from chicory selections during vegetative growth. Biologia plantarum25(6), 419-424. doi: 10.1007/BF02903139
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