10. Water, Transpiration, and Gas Exchange
- Paul H. Moore and
- Frederik C. Botha
Published Online: 13 DEC 2013
This edition first published 2014 © 2014 John Wiley & Sons, Inc.
Sugarcane: Physiology, Biochemistry, and Functional Biology
How to Cite
Grantz, D. A. (2013) Water, Transpiration, and Gas Exchange, in Sugarcane: Physiology, Biochemistry, and Functional Biology (eds P. H. Moore and F. C. Botha), John Wiley & Sons Ltd, Chichester, UK. doi: 10.1002/9781118771280.ch10
- Published Online: 13 DEC 2013
- Published Print: 6 DEC 2013
Print ISBN: 9780813821214
Online ISBN: 9781118771280
- gas exchange;
- stomatal regulation;
Water moves from soil to roots, up through the shoot and leaves, and into the atmosphere down a coherent gradient in the chemical potential of water. The rate of transpiration is governed by conductance and by energy inputs both to evaporate leaf water and to remove water vapor from the near-leaf environment. This chapter talks about the occurrence, pathways, and regulation of water exchange between sugarcane and its edaphic and atmospheric environments in an ecophysiological context. It focuses on transpiration through leaf stomata and cuticle, on a leaf area basis from individual leaves and transpiration through leaf stomata and cuticle, on a land surface area basis from extensive canopies. Gas exchange in sugarcane is driven by the interaction of leaves with the aerial environment, involving exchange of both mass and energy. Despite its considerable complexity, stomatal regulation is one of the factors controlling gas exchange.