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Q: Transpiration in plants ( Answered,   0 Comments )
Subject: Transpiration in plants
Category: Reference, Education and News
Asked by: holakitty-ga
List Price: $2.00
Posted: 04 Jun 2006 11:32 PDT
Expires: 04 Jul 2006 11:32 PDT
Question ID: 735243
Under what environmental condition is water transport through the
xylem reduced to near zero?
Subject: Re: Transpiration in plants
Answered By: neurogeek-ga on 09 Jun 2006 13:58 PDT
Transpiration in plants depends on the evaporation of water from the
leaf surface.  This means that the stomata ? small pores in the leaf
surface ? have to be open, and that water has to be evaporating from
the surface of the leaves.  Water doesn't evaporate in conditions of
very high humidity, so I'd answer that transpiration stops in
conditions of 100% humidity ? when it is raining!

Transpiration can also be slowed down when the stomata close.

I hope this helps.  Please let me know if you need more information.

Search strategy:
Google ?transpiration?
Wikipedia has a reasonable treatment of transpiration.
Link from Wikipedia
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