CIRAS-3 Operation Manual V. 1.09  164  support@ppsystems.com 
 
References 
Parkinson, K.J. 1983.  Porometry in S.E.B. Symposium of Instrumentation for Environmental Physiology.  
Cambridge University Press. 
Buck, A.L. 1981.  New equations for computing vapour pressure and enhancement factor. J. Appl. 
Meteorol., Vol. 20:1527-1532. 
von Caemmerer, S. and G.D. Farquhar 1981.  Some relationships between the biochemistry of 
photosynthesis and the gas exchange of leaves.  Planta, Vol. 153:376-387.