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Measurement of Leaf Hydraulic Conductance and Stomatal Conductance and Their Responses to Irradiance and Dehydration Using the Evaporative Flux Method (EFM)
JoVE 杂志
生物学
This content is Free Access.
JoVE 杂志 生物学
Measurement of Leaf Hydraulic Conductance and Stomatal Conductance and Their Responses to Irradiance and Dehydration Using the Evaporative Flux Method (EFM)

Measurement of Leaf Hydraulic Conductance and Stomatal Conductance and Their Responses to Irradiance and Dehydration Using the Evaporative Flux Method (EFM)

DOI:
10.3791/4179-v

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12:11 min

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December 31, 2012

•

,
1University of California, Los Angeles

Chapters

  • 00:05Title
  • 02:18Measuring Leaf Hydraulic Conductance for Hydrated Leaves (Kmax)
  • 06:44Measuring Leaf Hydraulic Conductance for Dehydrated Leaves
  • 09:07Utility of the Evaporative Flux Method
  • 11:17Conclusion

Summary

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We describe a relatively rapid (30 min) and realistic method for simultaneously measurement of leaf hydraulic conductance (Kleaf) and stomatal conductance (gs) for transpiring excised leaves. The method can be modified to measure the light and dehydration responses of Kleaf and gs.

Tags

Leaf Hydraulic ConductanceStomatal ConductanceIrradianceDehydrationEvaporative Flux MethodPlant Water Transport SystemTranspirationCO2 CaptureXylemLeaf VeinsStemRootsHydraulic ResistanceLeaf Water PotentialLeaf Hydraulic ResistanceWater Flow RateWater Potential GradientPetioleMesophyll CellsBundle Sheath

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