20.500.12556/DiRROS-7701
Dinamika ksilogeneze pri gradnu v letu 2007
Xylogenesis dynamics in sessile oak during 2007
S svetlobnim mikroskopom smo raziskali sezonsko dinamiko nastanka lesa pri gradnu (Quercus sessiliflora Salisb.) v rastni sezoni 2007. Konec marca so se delitve v kambiju že začele in število celic je naraslo na 10-11 slojev. Maksimalno celično produkcijo smo na ksilemski strani zabeležili v drugi polovici maja, ko smo ugotovili prek 100 ?m prirastka na teden. Kambijeva aktivnost se je zaključila do sredine avgusta in število celic je upadlo na 5-7 slojev. Oblikovanje sekundarne stene in lignifikacija v terminalnih celicah kasnega lesa pa sta potekala še nadaljnjih 4-5 tednov. Dinamika nastanka lesa pri gradnu se razlikuje od debelinske rasti iglavcev.
We investigated seasonal dynamics of wood formation in sessile oak (Quercus sessiliflora Salisb.) during the vegetation period of 2007, using light microscope. Divisions in the cambium already started at the end of March when the number of cells increased up to 10-11 layers. Maximal cell production was recorded in the second half of May when more than 100 ?m of the increment was formed per week. Cambial activity ceased by mid-August and the number of cambial cells diminished to 5-7 layers. However, secondary cell wall formation and lignification of terminal late wood cells took place for additional 4-5 weeks. The dynamics of wood formation in sessile oak differs from radial growth patterns of conifers.
Quercus sessiliflora
ksilogeneza
kambijeva aktivnost
traheja
rani les
kasni les
Quercus sessiliflora
xylogenesis
cambial activity
vessel
early wood
late wood
true
false
true
Slovenski jezik
Ni določen
Znanstveno delo
2017-07-12 09:19:05
2017-07-12 09:19:05
2022-08-14 13:25:10
0000-00-00 00:00:00
2008
0
0
str. 45-50
Vol. 86
2008
0000-00-00
Zaloznikova
Objavljeno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
630*81:630*17"2007"(045)=163.6
0351-3114
URN:NBN:SI:doc-562RXEMV
2310822
6206978
RAZ_Gricar_Jozica_i2008.pdf
RAZ_Gricar_Jozica_i2008.pdf
1
409C0ACF1DDBE32DAB84DAE6E8B35E07
3fdedd299dec01a1b4d25dab5d70a47f002633dee7693fec228ea1f030e9b70d
23d31aa9-17b5-11ed-b6b8-001a4af901a5
20.500.12556/dirros/54d7925d-1d91-4fa9-9070-66c540679e1c
https://dirros.openscience.si/Dokument.php?lang=slv&id=9566
Gozdarski inštitut Slovenije
Acta Silvae et Ligni
0
0
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