magistrsko delo
Tajda Turk (Author), Alenka Gaberščik (Reviewer), Tadeja Trošt Sedej (Mentor), Tadeja Trošt Sedej (Thesis defence commission member), Alenka Gaberščik (Thesis defence commission member), Jasna Dolenc Koce (Thesis defence commission member)

Abstract

V nalogi smo preučevali odziv planinske plahtice (Alchemilla moticola) na temperaturne in sevalne razmere v Karavankah na dveh nadmorskih višinah. Raziskali smo morfološke, biokemijske in optične lastnosti rastlin, izpostavljenih okoljskemu in zmanjšanemu UV sevanju. Ugotovili smo, da je prišlo do nekaterih razlik pri morfoloških in biokemijskih značilnostih listov. Razlike so nastale glede na različne jakosti UV sevanja, razlike v temperaturi in drugih okoljskih dejavnikih. Vpliv nadmorske višine je opazen v začetku meseca avgusta, ko smo določili največje razlike v količini UV absorbirajočih snovi, jakosti transpiracije ter fotokemični učinkovitosti listov planinske plahtice. Pri rastlinah v alpinskem pasu smo določili več UV absorbirajočih snovi kot pri rastlinah v montanskem pasu. Učinka UV sevanja na specifično listno površino nismo zaznali, zaznali pa smo vpliv nadmorske višine.

Keywords

planinska plahtica;višinski gradient;ultravijolična svetloba;optične lastnosti;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [T. Turk]
UDC: 581.1(043.2)
COBISS: 44407043 Link will open in a new window
Views: 397
Downloads: 62
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Other data

Secondary language: English
Secondary title: Response of the ladyʼs mantle (Alchemilla monticola Opiz) to temperature and radiation conditions in the Karavanke mountains
Secondary abstract: Alpine plants have adapted differently to extreme environmental conditions therefore they present an interesting subject of research. The experiment took place at two sites which differ in temperature and radiation conditions on different altitudes in the Karavanke mountains. The object of our observation was the lady's mantle plant (Alchemilla moticola). We detected some differences in the morphological and biochemical properties of the leaves. The differences were due to different levels of UV radiation, temperature conditions, and other environmental factors. The influence of altitude is most influential at the beginning of august when we determined differences in the amount of UV absorbing substances, the level of transpiration, and the photochemical efficiency of leaves. Furthermore, the plants that grew in the montane belt, had a lower content of UV absorbing substances than those that grew in the alpine belt. We also detected the effect of the altitude on specific leaf area.
Secondary keywords: lady's mantle;altitudinal gradient;ultraviolet light;optical traits;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. Ljubljana, Biotehniška fak.
Pages: X, 50 f.
ID: 12255916