The dissertation thesis deals with the use of low-temperature plasma and biological treatment of winter rape seed and spring barley as an alternative to chemical dressing in relation to the Decree on Integrated Pest Management 205/2012 Coll. The seed treatment technology is conceived as a two-phase process, where a lowtemperature plasma discharge of the Gliding Arc type ignited in the air at atmospheric pressure is used in the first step and a biological preparation containing spores of Trichoderma virens is applied to the treated seed as the second step. The plasma discharge treatment allows to increase the wettability of the seed surface, which improves the adhesion of the biological preparation in the second treatment step. Plasma also enables to activate selected processes taking place in seeds, which support their germination and subsequent growth. The content of the dissertation is divided into four sub-units which are mutually related: 1. determination of plasma discharge parameters for subsequent applications in the proposed technology, 2. carrying out laboratory experiments to assess the effect of plasma on seed, 3. carrying out field experiments to compare crop yields for different seed treatment options, 4. proposal for a regulation for seed treatment in a continuous mode by plasma discharge followed by application of the preparation and production of a functional sample. The work is markedly interdisciplinary and intervenes in the field of plasma physics, chemistry, plant production and construction of technical equipment. From the results achieved we can give a short summary: 1. Plasma discharge treatment of winter rape and barley seeds results in increased surface wettability. 2. No difference in the absorption of plasma treated and untreated seeds was observed during the experiments. 3. Developed dual seed treatment technology has the potential to increase yield. The dissertation thesis was realized within the project TA04021252 ? "Development of equipment for physical treatment of seeds and malt using low-temperature plasma."
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:403670 |
| Date | January 2019 |
| Creators | OLŠAN, Pavel |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/doctoralThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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