Vpliv obrasti na optične lastnosti vodnih listov prave potočarke in navadne streluše

Povzetek

Ključne besede

Podatki

Jezik:	Slovenski jezik
Leto izida:	2013
Izvor:	Ljubljana
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL PEF - Pedagoška fakulteta
Založnik:	[V. Oražem]
UDK:	581.5(043.2)
COBISS:	9642825
Št. ogledov:	832
Št. prenosov:	219
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	The effects of periphyton on optical properties of submerged leaves in Rorippa amphibia and Sagittaria sagittifolia
Sekundarni povzetek:	We studied the effects of periphyton on optical properties of the leaves of the species Rorippa amphibia and Sagittaria sagittifolia. Leaf reflectance and transmittance were measured. Morphological research included the measurements of specific leaf area, leaf thickness (upper and lower epidermis, mesophyll), the number of stomata and the presence of diatoms on upper and lower side of the leaves. Biochemical analyses included measurements of concentrations of chlorophyll a and b, carotenoides, anthocianins, UV-A and UV-B absorbing substances. We also measured concentrations of chlorophyll in periphyton. We can conclude that all biochemical parameters, stomata and diatom density, SLA and leaf thickness affected leaf reflectance and transmittance. Mesophyll thickness affected the reflectance, while periphyton presence affected mainly leaf transmittance in both studies species.
Sekundarne ključne besede:	botany;botanika;
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Diplomsko delo
Komentar na gradivo:	Univ. Ljubljana, Pedagoška fak., Biotehniška fak., Biologija in gospodinjstvo
Strani:	XI, 56 f.
Vrsta dela (ePrints):	thesis
Naslov (ePrints):	The effects of periphyton on optical properties of submerged leaves in Rorippa amphibia and Sagittaria sagittifolia
Ključne besede (ePrints):	navadna streluša
Ključne besede (ePrints, sekundarni jezik):	R. amphibia
Povzetek (ePrints):	Preučevali smo vpliv obrasti na optične lastnosti listov prave potočarke in navadne streluše. Merili smo listno odbojnost in presevnost ter specifično listno površino, debelino lista in posameznih tkiv (zg. in sp. povrhnjica, mezofil), gostoto listnih rež in prisotnost diatomej na zgornji in spodnji strani lista. Biokemijske analize so obsegale meritve vsebnosti klorofilov a in b, karotenoidov, antocianov in UV–A in –B absorbirajočih snovi. V odstranjeni obrasti smo izmerili vsebnost klorofila a. V raziskavi smo ugotovili, da na listno odbojnost in presevnost vplivajo vsi biokemijski parametri, gostota diatomej in listnih rež, SLA in debelina lista. Na odbojnost vpliva tudi debelina mezofila. Prisotnost obrasti vpliva predvsem na listno presevnost obeh vrst.
Povzetek (ePrints, sekundarni jezik):	We studied the effects of periphyton on optical properties of the leaves of the species Rorippa amphibia and Sagittaria sagittifolia. Leaf reflectance and transmittance were measured. Morphological research included the measurements of specific leaf area, leaf thickness (upper and lower epidermis, mesophyll), the number of stomata and the presence of diatoms on upper and lower side of the leaves. Biochemical analyses included measurements of concentrations of chlorophyll a and b, carotenoides, anthocianins, UV-A and UV-B absorbing substances. We also measured concentrations of chlorophyll in periphyton. We can conclude that all biochemical parameters, stomata and diatom density, SLA and leaf thickness affected leaf reflectance and transmittance. Mesophyll thickness affected the reflectance, while periphyton presence affected mainly leaf transmittance in both studies species.
Ključne besede (ePrints, sekundarni jezik):	R. amphibia
ID:	8311402