Abstract
A hydroponic experiment was conducted to study the effects of different concentrations of selenium (0.00, 0.05, 0.10, 0.25, 0.50, 1.00, 2.00 mg/L) on photosynthetic physiology of grape seedlings. The result showed that the selenium concentration of 0.05 mg/L could significantly improve the chlorophyll a, chlorophyll b, carotenoid and total chlorophyll of grape seedlings, while the chlorophyll content reduced significantly when the concentration was 1.00 mg/L and 2.00 mg/L. Besides, the net photosynthetic rate (Pn), stomatal conductance (Gs), CO2 concentration of intercellular (Ci) and transpiration rate (Tr) of grape seedlings all significantly increased at 0.05 mg/L, while the Pn, Gs, Ci and Tr of grape seedlings reduced significantly when the concentration was 1.00 mg/L and 2.00 mg/L. Therefore, the selenium concentration of 0.05 mg/L concentration was beneficial to photosynthesis.
Export citation and abstract BibTeX RIS
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.