BF, Dept. of Wood Technology, Lj. (BFLES)
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Nastajanje lesa pri bukvi (Fagus sylvaticaL.) v rastni sezoni 2006 : diplomsko delo (univerzitetni študij) = Wood formation in beech (Fagus sylvatica L.)in the 2006 growth season : graduation thesis (university studies)Prislan, PeterNa šestih drevesih navadne bukve (Fagus sylvatica L.) s Panjske reke pri Ljubljani smo raziskali sezonsko aktivnost kambijeve cone ter dinamiko nastanka ksilemske branike 2006. Iz živih dreves smo v ... tedenskih intervalih, med 24. aprilom in 22. avgustom 2006, odvzemali vzorce intaktnih tkiv lesa, kambija in skorje. Z rotacijskim mikrotomom smo pripravili histološke rezine, jih obarvali z barviloma safranin in astra modro ter analizirali s svetlobnim mikroskopom in sistemom za analizo slike. Opisali smo faze diferenciacije ksilemskih elementov: trahej, vlaken in aksialnega parenhima. Na mikroskopskih preparatih tkiv smo prešteli število slojev celic v kambijevi coni in izmerili širino tekočega ksilemskega prirastka. Dormantna kambijeva cona je bila široka od 3 do 5 slojev celic. Celične delitve v kambijevi coni so se pri vseh drevesih začele med 18. in 24. aprilom 2006. Že 18. aprila 2006 smo zasledili prve celice v postkambijski rasti, sinteza sekundarne celične stene pa se je pričela teden dni kasneje. Na začetku maja je bila kambijeva cona najširša (od 10 do 13 slojev celic). V tednu med 13. in 20. junijem 2006 smo zasledili prva dokončno diferencirana vlakna s popolnoma izoblikovano celično steno. Delitvena aktivnost kambijeve cone se je zaključila med 25. julijem in 16. avgustom 2006, konec avgusta pa je bila branika že popolnoma izoblikovana. Izmerjene vrednosti širin prirastka smo izravnali z Gompertzovo funkcijo. Obdobje najintenzivnejših delitev v kambijevi coni je bilo med 30. majem in 6. junijem 2006. Končna širina branike je bila v povprečju 2537,68 m, čas potreben za njen nastanek pa je znašal 100 dni. Med drevesi so obstajale razlike v dinamiki nastajanja in končni širini ksilemske branike 2006.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [P. Prislan], 2007Language - slovenianCOBISS.SI-ID - 1533321
Author
Prislan, Peter
Other authors
Čufar, Katarina |
Gričar, Jožica, 1978- |
Oven, Primož
Topics
Fagus sylvatica |
bukev |
ksilogeneza |
nastanek lesa |
kambijeva aktivnost |
diferenciacija |
Beech |
xylogenesis |
wood formation |
cambial activity |
differentiation
Call number – location, accession no. ... |
Copy status | Reservation |
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Knjižnica BF za lesarstvo dn 0000000844 IN: 020070168 Knjižnica BF za lesarstvo dn 844 IN: 020070168 |
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Prislan, Peter | 29428 |
Čufar, Katarina | 02937 |
Gričar, Jožica, 1978- | 22609 |
Oven, Primož | 11223 |
Source: Personal bibliographies
and: SICRIS
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