diplomsko delo - visokošolski strokovni študij
Dejan Povše (Avtor), Primož Oven (Recenzent), Katarina Čufar (Mentor), Jožica Gričar (Komentor)

Povzetek

V drugi polovici rastne sezone 2008 smo na 6 drevesih navadne bukve (Fagus sylvatica L.) s Panške reke pri Ljubljani in 6 bukvah z Menine planine raziskovali kambijevo aktivnost, nastajanje ksilemske branike in diferenciacijo celic. Od 7. julija do 8. septembra (Panška reka) oziroma od 7. julija do 12. septembra (Menina planina) smo iz rastočih dreves v tedenskih intervalih odvzemali mikro izvrtke tkiv lesa, kambija in skorje. Z rotacijskim mikrotomom smo pripravili histološke rezine, jih obarvali z barviloma safranin in astra modro ter jih analizirali s svetlobnim mikroskopom in sistemom za analizo slike. Na mikroskopskih preparatih tkiv smo prešteli število slojev celic v kambijevi coni in izmerili širino nastajajoče ksilemske branike. Na začetku vzorčenja je kambijeva cona na Menini planini vsebovala med 7 in 8, na Panški reki pa med 9 in 10 plasti celic v radialnem nizu. Na Panški reki se je delitev celic zaključila med 28. julijem in 25. avgustom z izjemo enega drevesa (delitev končana že 7. julija), na Menini planini pa med 7. in 18. julijem. Stene terminalnih vlaken so se na Panški reki dokončno lignificirale med 11. avgustom in 8. septembrom, na Menini planini pa med 8. in 22. avgustom. Dormantna kambijeva cona je bila v radialnem nizu široka od 3 do 5 slojev celic.

Ključne besede

bukev;Fagus sylvatica L.;ksilogeneza;kambijeva aktivnost;diferenciacija;nastanek kasnega lesa;Panška reka;Menina planina;

Podatki

Jezik: Slovenski jezik
Leto izida:
Izvor: Ljubljana
Tipologija: 2.11 - Diplomsko delo
Organizacija: UL BF - Biotehniška fakulteta
Založnik: [D. Povše]
UDK: 630*811.13:176.1 (Fagus sylvatica L.)
COBISS: 1772681 Povezava se bo odprla v novem oknu
Št. ogledov: 978
Št. prenosov: 299
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Completion of cambial activity in growing season 2008 in beech at two forest sites
Sekundarni povzetek: Cambial activity, formation of xylem growth-ring, and differentiation of xylem cells were studied in 6 trees of common beech (Fagus sylvatica L.) from Panška reka near Ljubljana and in 6 trees from Menina planina. The sampling was performed in the second half of the growing season 2008. Micro cores were collected from living trees at weekly intervals from July 7 - September 8 (Panška reka) and from July 7 - September 12 (Menina planina). They contained wood, cambial zone and bark. Histological slices were cut with rotary microtome, and stained with safranine and astra blue stains, then they were observed under the light microscope and analyzed with image analysis system. The number of cell layers in the cambial zone was counted and the width of the forming tree-ring measured. At the beginning of the sampling, the cambial zone at Panška reka contained 9 - 10 and at Menina planina 7 - 8 layers of cells in the radial row. Cell divisions at Panška reka were completed from July 28 - August 25 with the exception of 1 tree (division completed by July 7) and at Menina planina from 7th - 18th July. The lignification of the fibre cell walls at Panška reka was completed from August 11 - September 8, and at Menina planina from 8th - 22nd August, 2008. The dormant cambial zone contained 3 - 5 layers of cells in radial row.
Sekundarne ključne besede: beech;Fagus syilvatica L.;xylogenesis;cambial activity;differentiation;wood formation;Panška reka;Menina planina;
Vrsta dela (COBISS): Diplomsko delo
Komentar na gradivo: Univ. v Ljubljani, Biotehniška fakulteta, Odd. za lesarstvo
Strani: IX, 56 f.
Ključne besede (UDK): applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;agriculture and related sciences and techniques;forestry;farming;wildlife exploitation;kmetijstvo ter sorodne vede in tehnologije;forestry;gozdarstvo;forest products and their utilization;gozdni proizvodi in njihova uporaba;philosophy;psychology;filozofija;psihologija;moral philosophy;ethics;practical philosophy;moralna filozofija;etika;praktična filozofija;sexual ethics;sexual morality;spolna etika;spolna morala;
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