Atmospheric pressure plasma treatment of agricultural seeds with effect on wettability and surface chemical changes

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Authors

ŠTĚPÁNOVÁ Vlasta SLAVÍČEK Pavel KELAR Jakub PRÁŠIL Jan SMÉKAL Milan STUPAVSKÁ Monika JURMANOVÁ Jana ČERNÁK Mirko

Year of publication 2017
Type Article in Proceedings
Conference Proceedings of the XXXIII International Conference on Phenomena in Ionized Gases (ICPIG)
MU Faculty or unit

Faculty of Science

Citation
Field Plasma physics
Description Diffuse coplanar surface barrier discharge (DCSBD) at atmospheric pressure in ambient air was used for plasma treatment of agricultural seeds. The aim of plasma treatment was improvement of wettability and potential reduction of pathogens. Lettuce seeds were plasma treated for a few seconds and analyzed with SEM, XPS and method for measurement of water uptake. Surface morphology was not affected with plasma treatment. Plasma treatment caused surface chemical changes and improvement of water uptake with only slight decrease of germination in comparison with untreated seeds. Change in percentage of chemical bonds containing carbon and oxygen was observed. Significant increase of O/C ratio after few seconds of plasma treatment was reached.
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