1.
Isotopes Environ Health Stud
; 46(1): 122-9, 2010 Mar.
Artigo
em Inglês
| MEDLINE
| ID: mdl-20229389
RESUMO
Models that explain the oxygen isotope enrichment in leaf water (and biomass) treat the relationship between the kinetic fractionation that occurs during evapotranspiration and the stomatal conductance in an empirical way. Consequently, the isotopic enrichment is always predicted to decrease with increasing stomatal conductance, regardless of the experimental evidence to the contrary. We explain why and suggest an alternative method to reconcile theory and experiment. We support this with our experimental data on rice and groundnut plants.