Abstract
Climate change is driving the search for grapevine cultivars and/or rootstocks that use water more efficiently. Recently, there has been increasing attention on nighttime transpiration. The reasoning is simple. While daytime transpiration results from the necessity to have stomata open so the plant can take up carbon dioxide for photosynthesis, nighttime transpiration could be considered a “waste” of water since no photosynthesis occurs at night. So how significant is nighttime water use in grape, and does it serve some other purpose that benefits the vine?
Highlights
Sourced from the research article “Nighttime transpiration represents a negligible part of water loss and does not increase the risk of water stress in grapevine” (Plant, Cell & Environment, 2021)[1]
While daytime transpiration results from the necessity to have stomata open so the plant can take up carbon dioxide for photosynthesis, nighttime transpiration could be considered a “waste” of water since no photosynthesis occurs at night
The following question was asked: if day- or nighttime transpiration were reduced, how long would it take a vine to deplete soil relative water content (RWC) to 20 %?
Summary
Sourced from the research article “Nighttime transpiration represents a negligible part of water loss and does not increase the risk of water stress in grapevine” (Plant, Cell & Environment, 2021)[1]. Nighttime transpiration: does it contribute to water stress in grape? While daytime transpiration results from the necessity to have stomata open so the plant can take up carbon dioxide for photosynthesis, nighttime transpiration could be considered a “waste” of water since no photosynthesis occurs at night.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
