Abstract
Polyethylene glycol (P E G) was used at different concentrations in glasshouse studies to create a range of solution osmotic potentials in an attempt to simulate the effect of water stress on vines. This was found to be a feasible technique provided that special precautions were taken to prevent P E G uptake and toxicity symptoms caused by mechanical root damage. Vine response in terms of transpiration, shoot elongation rate, stomata! resistance and leaf water potential, was monitored. Significant correlations were found between solution osmotic potential and all these parameters. Shoot growth was more sensitive than stomata! opening to osmotic potential which, in turn, correlated well with transpiration rate.
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 callMore From: South African Journal of Enology & Viticulture
Disclaimer: 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.
