magistrsko delo
Urša Malovrh (Author), Alenka Gaberščik (Mentor), Tadeja Trošt Sedej (Thesis defence commission member), Matevž Likar (Thesis defence commission member), Alenka Gaberščik (Thesis defence commission member)

Abstract

Ultravijolično sevanje ima na rastline velik vpliv, saj poškoduje njihov DNA, povzroči spremembe v transpiraciji, fotosintezi in respiratornem potencialu ter v rasti, razvoju in morfologiji rastlin. Negativen vpliv na rastline ima tudi suša, ki značilno zmanjša količino pridelka. Tako suša kot tudi ultravijolično sevanje se odražata v spremenjenih optičnih lastnostih listov in posledično v spremenjeni energijski bilanci. Vpliv ultravijoličnega sevanja in suše sta ključna okoljska dejavnika raziskave, katerih vplive smo preučevali na funkcionalni, strukturni in biokemijski ravni rastlin. Raziskava je bila opravljena na prosu (Panicum miliaceum) in je bila eksperimentalne narave. Za vzorec smo vzeli 96 rastlin prosa, ki smo ga konec maja posadili v lončke in izpostavili različnim obravnavanjem: naravnemu in zmanjšanemu ultravijoličnemu sevanju ter zadostni količini vode in pomanjkanju vode. Ko so rastline dosegle reproduktivno fazo, smo preučili morfološko zgradbo listov in njihove biokemijske in optične lastnosti. Ugotovitve magistrskega dela bodo prispevale k znanju na področju ekologije kmetijskih rastlin.

Keywords

ultravijolično sevanje;suša;fotosintezni pigmenti,;optične lastnosti;navadno proso (Panicum miliaceum);

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [U. Malovrh]
UDC: 57(043.2)
COBISS: 12073545 Link will open in a new window
Views: 610
Downloads: 180
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Other data

Secondary language: English
Secondary title: Effects of utraviolet radiation and drought on optical properties of millet (Panicum miliaceum)
Secondary abstract: Ultraviolet radiation has an important effect on plants: it damages their DNA and induces changes in plant transpiration, photosynthesis, respiratory potential, growth, development and morphology. Drought has similarly debilitating effects, significantly reducing harvesting potential. Both drought and ultraviolet radiation are reflected in altered optical properties of leaves and consequently in altered energy balance. The effect of ultraviolet radiation and drought are key environmental factors of this research, in which their effects have been studied from functional, structural and biochemical plant properties points of view. The research has been done using proso millet (Panicum miliaceum) and was experimental by nature. We used 96 proso millet plants as a sample; at the end of May, proso millet was planted in pots and then exposed to different factors: natural and reduced ultraviolet radiation, sufficient and insufficient water supply. Once the plants have reached reproductive phase, we have studied the morphological structure of their leaves and their biochemical and optical properties. The findings of this post-graduate thesis will enrich knowledge about agricultural plants' ecology.
Secondary keywords: biology;biologija;
File type: application/pdf
Type (COBISS): Master's thesis/paper
Thesis comment: Univ. v Ljubljani, Pedagoška fak., Poučevanje - Predmetno poučevanje, Biologija in kemija
Pages: VI, 49 str.
ID: 10950720