Abstract
The experiment was conducted to determine diurnal changes of net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), water use efficiency (WUE), and environmental factors in Iris lactea Pall. var. chinensis (Fisch.) Koidz grown in salt-alkali soil. The data acquired in this study showed that diurnal changes of Pn and Tr were two-peak-type-curve and were marked by a midday depression of Pn, which could be fully accounted for by Gs changes. Carboxylic efficiency (CE), photosynthetic rate at saturation for intercellular CO_(2) concentration (A_(350)), apparent quantum yield (AQY), and photosynthetic rate at light saturation (Pmax) all decreased at midday. The results indicated that the midday depression could be attributed to the rising leaf temperature caused by increased strong solar radiation (PAR).
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.
