Measurements of transpiration isotopologues and leaf water to assess enrichment models in cotton.

@article{Song2015MeasurementsOT,
  title={Measurements of transpiration isotopologues and leaf water to assess enrichment models in cotton.},
  author={Xin Song and Karen E Loucos and Kevin A Simonin and Graham D Farquhar and Margaret M. Barbour},
  journal={The New phytologist},
  year={2015},
  volume={206 2},
  pages={637-46}
}
The two-pool and Péclet effect models represent two theories describing mechanistic controls underlying leaf water oxygen isotope composition at the whole-leaf level (δ(18) OL ). To test these models, we used a laser spectrometer coupled to a gas-exchange cuvette to make online measurements of δ(18) O of transpiration (δ(18) Otrans ) and transpiration rate (E) in 61 cotton (Gossypium hirsutum) leaves. δ(18) Otrans measurements permitted direct calculation of δ(18) O at the sites of evaporation… CONTINUE READING
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