scholarly journals Effects of α-Hydroxy-2-Pyridinemethanesulfonic Acid on Photosynthetic Carbon Dioxide Uptake and Stomatal Movements in Excised Tomato Leaves

1977 ◽  
Vol 60 (1) ◽  
pp. 44-46 ◽  
Author(s):  
Ramazan Ali Khavari-Nejad







1984 ◽  
Vol 62 (1) ◽  
pp. 163-165 ◽  
Author(s):  
David F. Parkhurst

A model for carbon dioxide uptake by plant leaves, based on the partial differential equation for diffusion with chemical reaction, is used to simulate photosynthesis for various stomatal openings. The results show that not only the "stomatal resistance" but also the commonly calculated "mesophyll resistance" varies when nothing but stomatal aperture is changed. Simplistic uses of the resistance concept (or related conductances) may be more misleading than useful for modelling photosynthesis, because the various resistance components are neither independent nor additive.



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