Primjena hladne plazme pri klijanju pšenice

master's thesis

• Title (english): Application of cold plasma in wheat germination
• Author: Mateja Filković
• Mentor: Tomislava Vukušić (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Food Engineering); (Laboratory for Food Processes Engineering); Zagreb
• Defense date and country: 2018-09-21, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

Netermalna plazma pronašla je svoju primjenu u agronomiji. Plazma uzrokuje promjenu na površini sjemena i utječe na ulazak radikala (H2O2, O3, OH-, NO3-, NO2- ) u unutrašnjost sjemena. Cilj ovog rada bio je odrediti utjecaj tretmana visokonaponskim pražnjenjem u poticanju klijavosti sjemena. Tretman sjemena Ljetne i Zimske pšenice u destiliranoj vodi provodio se u vremenskom periodu od 10 minuta pri frekvenciji 90 Hz uz 4 radna plina: argon, kisik, dušik i zrak. Nakon tretmana sjeme je inkubirano 6 dana u na 20 °C. Degradacija peroksida u plazma aktiviranoj vodi praćena je zbog provjere stabilnosti i pogodnosti upotrebe kao alternativne zamjene za umjetno gnojivo. Upotrebom radnih plinova kisika i zraka postignuto je 60 % povećanje klice i korijena, dok primjenom argona i dušika 3 do 6 puta povećanje količine ukupnih klorofila. Rezultati impliciraju da hladna plazma poboljšava klijavost sjemena i rast biljke.

Abstract (english)

Nonthermal plasma is now used in agronomy. Plasma treatment induces changes on the seed surface and allows radicals (H2O2, O3, OH-, NO3-, NO2-) to penetrate into the seed. The aim of this study was to determine the effect of treatment by high voltage electrical discharge plasma on enhancement of seed germination. The 10 minutes treatment was carried out on distilled water with immersed Spring or Winter Wheat at frequency of 90 Hz using 4 working gases: argon, oxygen, nitrogen and air. After treatment, the seeds were incubated for 6 days at 20 °C. Decomposition of peroxide in plasma activated water was monitored to check the stability and suitability in usage as alternative substitutions for artificial fertilizer. Using oxygen and air as working gases 60 % increase in roots and shoots and using argon and nitrogen 3 to 6 times increase in total chlorophyll levels was achieved. Results imply that cold plasma improves seed germination and plant growth.

• Keywords: hladna plazma; visokonaponsko pražnjenje; sjeme pšenice; klorofil; peroksidi; nitriti; nitrati; klijavost
• Keywords (english): cold plasma; highvoltage electrical discharge; wheat seed; peroxide; nitrite; nitrate; germination; chlorophyll
• Language: croatian
• URN:NBN: urn:nbn:hr:159:767709
• Study programme: Title: Food Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka prehrambenog inženjerstva (magistar/magistra inženjer/inženjerka prehrambenog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-11-27 10:11:09