Abstract
Leaf diffusion resistance and shoot water potential of seedlings of six species of woody angiosperms were studied in a 4 × 4 design of crossed gradients of light intensity (1507, 4306, 10 764, and 21 528 lx) and temperature (18, 22.5, 26, and 30 °C). In all species, leaf diffusion resistance generally increased with decreasing light intensity and increasing temperature, but the effects of light intensity were much greater. Highly significant differences on leaf diffusion resistance were found for light intensity, temperature, time of day, and various interactions of these. Shoot water potential of all species decreased with increasing light intensity and temperature. Both leaf resistance and water potential under light and temperature stress varied among species. Despite high leaf resistance under environmental stress, indicating rapid stomatal closure, Acersaccharum with an extensive leaf area developed high shoot water deficits. Stomatal opening and closing in responses to changes in light intensity varied among five species of woody angiosperms but were not consistently correlated with species shade tolerance.
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.
