Lec10TranspirationAndWaterStress

Transpiration transpiration measurement lysimeter

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Unformatted text preview: or occurs, and the stomata close. • This immediately reduces the rate of transpiration (as well as of photosynthesis). • If the loss of turgor extends to the rest of the leaf and stem, the plant WILTS. Transpiration Transpiration • Measurement – Lysimeter* • Weight measurements – Must take evaporation into account – Gas exchange or cuvette • Closed volume • Temperature regulation concerns – Stem-flow methods measuring transpiration or water loss: Transpiration http://calag.ucop.edu/0502AMJ/ Transpiration you put a gas exchange into the leaf and you can measure what goes in and what goes out and the difference is transpiration • Measurement – Lysimeter • Weight measurements – Must take evaporation into account – Gas exchange or cuvette* • Closed volume • Temperature regulation concerns – Stem-flow methods http://veli.pohjonen.org/ Transpiration Transpiration • Measurement – Lysimeter • Weight measurements – Must take evaporation into account – Gas exchange or cuvette • Closed volume • Temperature regulation conce...
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This document was uploaded on 01/17/2014.

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