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master's thesis
Istraživanje učinkovitosti fotosustava II tijekom klasanja jarog ječma
2012. urn:nbn:hr:181:807270
Molnar, Tanja
Josip Juraj Strossmayer University of Osijek
Department of biology

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Molnar, T. (2012). Istraživanje učinkovitosti fotosustava II tijekom klasanja jarog ječma (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of biology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:181:807270

Molnar, Tanja. "Istraživanje učinkovitosti fotosustava II tijekom klasanja jarog ječma." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of biology, 2012. https://urn.nsk.hr/urn:nbn:hr:181:807270

Molnar, Tanja. "Istraživanje učinkovitosti fotosustava II tijekom klasanja jarog ječma." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of biology, 2012. https://urn.nsk.hr/urn:nbn:hr:181:807270

Molnar, T. (2012). 'Istraživanje učinkovitosti fotosustava II tijekom klasanja jarog ječma', Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of biology, accessed 13 November 2024, https://urn.nsk.hr/urn:nbn:hr:181:807270

Molnar T. Istraživanje učinkovitosti fotosustava II tijekom klasanja jarog ječma [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of biology; 2012 [cited 2024 November 13] Available at: https://urn.nsk.hr/urn:nbn:hr:181:807270

T. Molnar, "Istraživanje učinkovitosti fotosustava II tijekom klasanja jarog ječma", Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of biology, Osijek, 2012. Available at: https://urn.nsk.hr/urn:nbn:hr:181:807270

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Metadata
TitleIstraživanje učinkovitosti fotosustava II tijekom klasanja jarog ječma
Title (english)The study of photosystem II efficiency during spring barley heading
AuthorTanja Molnar
MentorVera Cesar (mentor)
Committee memberJanja Horvatić (predsjednik povjerenstva)
Committee memberVera Cesar (član povjerenstva)
Committee memberElizabeta Has Schon (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Department of biology
Osijek
Defense date and country2012-10-29, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
Proces fotosinteze započinje apsorpcijom fotona svijetlosti uz pomoć fotosintetskih pigmenata. U listu ta energija može biti iskorištena na tri načina: dio energije ulazi u proces fotosinteze, dio disipira u obliku topline, a dio disipira u obliku fotona crvene svijetlosti što rezultira fluorescencijom klorofila a. Istraživanje je rađeno na četiri sorte ječma (Hordeumvulgare L.): Astor, Jaran, Scarlett i Fran. Cilj istraživanja bio je istražiti učinkovitost fotosustava II tijekom klasanja ječma te utvrditi postoji li povezanost između koncentracije klorofila a i aktivnosti fotosustava II. Porast fluorescencije klorofila a odredila sam OJIP-testom. Koncentraciju fotosintetskih pigmenata sam odredila spektrofotometrijski. Najveća učinkovitost fotosustava II zabilježena je na kraju klasanja ječma kada su izmjerene vrijednosti parametara PI i TRO/ABS bile najveće.Koncentracija klorofila a raste tijekom klasanja ječma da bi na kraju klasanja njegova koncentracija bila najveća, dok daljnjim razvojem ona opada što je potvrđeno smanjenjem RC/SCO.
Abstract (english)
The process of photosynthesis is beginning by photon absorption of light mediated with photosynthetic pigments. Leavesare using light energy in three ways: one part goes into the process of photosynthesis, another one dissipates as heat and thirdone as photons of red light showing the chlorophyll a fluorescence. Study was performed on four varieties of barley(Hordeum vulgare L.): Astor, Jaran Scarlett and Fran. The aim of this study was to investigate the efficiency of photosystem II during the barley heading and correlate it with the concentration of chlorophyll a. The rise of chlorophyll a fluorescence was determined by OJIP-test. The concentration of photosynthetic pigments was measured spectrophotometrically. The highest efficiency of photosystem II was observed at the end of barley heading what was demonstrated with highest values of the parameters PI and TRO/ABS. Chlorophyll a concentration raised during barley heading and at the end of heading it was the highest. It decreased during the on going development what was confirmed by reducing RC/SCO.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:181:807270
Study programmeTitle: Master of Science Graduate University Study Programme in Biology; specializations in: Master of Biology
Course: Master of Biology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra biologije (magistar/magistra biologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2017-01-24 10:00:35