Optične lastnosti treh vrst slanuš : diplomsko delo

Budak, Valentina (author), Gaberščik, Alenka (mentor)

Namen diplomskega dela je bil raziskati optične lastnosti tolščakaste lobode (Atriplex portulacoides), morskega koprca (Crithmum maritimum) in ozkolistne mrežice (Limonium angustifolium). Ugotavljali smo vpliv kristalčkov soli in drugih anatomskih struktur na odbojnost in presevnost lista (med 280 nm in 885 nm). Na listih smo izvedli biokemijske analize, pri čemer smo analizirali vsebost klorofilov, karotenoidov, antocianov in UV-absorbirajočih snovi. Ugotavljali smo količino vode v listih, prisotnost trihomov in količino soli na listni površini. Zgradbo lista smo analizirali v prečnem prerezu. Rezultati so pokazali, da so med rastlinskimi vrstami razlike v odbojnosti in presevnosti. Na optične lastnosti vpliva tako morfološka kot biokemijska zgradba lista. Kristalčki soli na površini kažejo večji vpliv na presevnost kakor na odbojnost.

• Language: Slovenian
• Keywords: optične lastnosti, tolščakasta loboda (Atriplex portulacoides), morski koprc (Crithmum maritimum), ozkolistna mrežica(Limonium angustifolium), lastnosti listov, sol
• Work type: Undergraduate thesis
• Typology: 2.11 - Undergraduate Thesis
• Organization: PEF - Faculty of Education
• Publisher: [V. Budak]
• Year: 2016
• Number of pages: IX, 42 f., IX f. pril.
• PID: 20.500.12556/RUL-87157
• UDC: 58(043.2)
• COBISS.SI-ID: 11341897
• Publication date in RUL: 04.09.2017

Secondary language

• Language: English
• Title: Leaf optical properties in three halophyte species

Abstract

The purpose of the thesis was to examine optical properties of Atriplex portulacoides, Crithmum maritimum and Limonium angustifolium. We studied the influence of salt and other anatomical structures on reflectance and transmitance (between 280 nm and 885 nm). We carried out biochemical analyses about contents of chlorophyll, carotenoid, anthocyanin and UV-absorbing substances. We determined the amount of water in leafs, the presence of trihomes and the amount of salt on leaf surfaces. We also analysed the leaf structure. The results showed differences in reflectance and transmitance of our three species. Also morphological and biochemical properties had influence on optical properties. Salt cristals on leaf surface showed influence mostly on transmitance, but also on reflectance.

• Keywords: botany, botanika