diplomsko delo
Saša Kramar (Author), Jasna Dolenc Koce (Mentor)

Abstract

Tako strokovnjaki kot laična javnost se vsako leto bolj zavedajo težav, ki jih prinašajo tujerodne vrste. Vedno bolj je potrebno iskati načine za zaviranje naseljevanja ali razširjanja tujerodnih vrst, saj so pri tem oškodovane naše, domorodne vrste. Tako je bil glavni cilj moje diplomske naloge ugotoviti ali izvleček krhke vrbe (Salix fragilis) vpliva na rast in razvoj japonskega dresnika (Fallopia japonica). V predhodni raziskavi so bile rastline japonskega dresnika zalivane z destilirano vodo ter 0,1 % in 1 % izvlečkom krhke vrbe, vodovodno in destilirano vodo. Iz vsake skupine rastlin sem vzela nekaj vzorcev listov in korenin in jih pripravila za spektrofotometrično merjenje. Izmerila sem koncentracije klorofila a, klorofila b in ksantofilov. V vsakem vzorcu sem stehtala še svežo in suho maso ter iz teh podatkov izračunala še količino vode. Iz dobljenih podatkov sem izračunala povprečje in standardni odklon, posamezne izpostavitve pa medsebojno primerjala še s Studentovim t-testom. Kljub temu, da stres zaradi spremenjenih rastnih razmer se v rastlinah lahko povzroči različne biokemijske in fiziološke spremembe, v naši raziskavi vodni izvlečki vrbe niso vplivali na vsebnost fotosinteznih barvil in vode niti na maso rastlin.

Keywords

invazivne tujerodne vrste;vrba;japonski dresnik;spektrofotometrija;fotosintezni pigmenti;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [S. Kramar]
UDC: 58(043.2)
COBISS: 10245961 Link will open in a new window
Views: 1216
Downloads: 223
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Other data

Secondary language: English
Secondary title: Effect of Salix extracts on photosintetic pigments in japanese knotweed(Fallopia japonica)
Secondary abstract: Every year, experts and laic community are more aware of the problems posed by non-native species. It is increasingly necessary to look for ways to inhibit the colonization or spread of non-native species, as they do not benefit our own native species. Thus, the main goal of my diploma thesis was to find out if the extract of brittle willow (Salix fragilis) affects the growth and development of Japanese knotweed (Fallopia japonica). In the previous study, the plants of Japanese knotweed were watered with 0.1 % and 1 % essence of aqueous extract of brittle willow and distilled water. I took some samples of leaves and roots from each group of plants and prepared them forspetrofotometric measurments. I measured the concentrations of chlorophyll a, chlorophyll b, and xanthophylls in each sample. I also measured the fresh and dry weight of the samples, and calculated the water from these data. I calculated the mean and standard deviation, and then further processed the results using Student's t-test. Despite stresss is reflected in biochemical and physiological changes, in our thesisextract of brittle willow didn't reflect on japanese knotweed.
Secondary keywords: botany;botanika;
File type: application/pdf
Type (COBISS): Bachelor thesis/paper
Thesis comment: Univ. Ljubljana, Pedagoška fak., Kemija in biologija
Pages: V, 29 str.
ID: 8708210