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Title:Značilnosti zgradbe lesa sadik bora (Pinus sylvestris) in bukve (Fagus sylvatica) izpostavljenih trem različnim okoljskim razmeram
Authors:ID Gričar, Jožica (Author)
Files:URL URL - Source URL, visit https://ojs.sazu.si/folia_bio_geo/article/view/5192
 
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MD5: 255A76EAE7E34CBDD84CB32F4F4B4CBB
 
Language:Slovenian
Typology:1.01 - Original Scientific Article
Organization:Logo SAZU - Slovenian Academy of Sciences and Arts
Abstract:Poznavanje strukture in lastnosti lesa je ključno z vidika njegove smotrnejše obdelave, predelave in končne rabe. V članku opisujemo in primerjamo značilnosti zgradbe lesa triletnih sadik bora (Pinus sylvestris) in bukve (Fagus sylvatica) izpostavljene trem različnim temperaturnim režimom v rastnih sezonah 2010–2011: kontrola (K, na prostem, povprečna temperatura v času rastne sezone = 17–19°C), rastlinjak (G, povprečna temperatura v času rastne sezone = 22–24°C) in hladilna komora (C, povprečna temperatura v času rastne sezone = 15–17°C). Na preparatih prečnih prerezov lesa smo tako preverili prisotnost in delež reakcijskega lesa, prisotnost gostotnih fluktuacij, prisotnost kalusa ter za bor še gostoto in položaj aksialnih smolnih kanalov. Rezultati kažejo na vrstno specifičen odziv pionirskega rdečega bora in sencovzdržne bukve na različne okoljske razmere v smislu debelinske rasti in strukturnih posebnosti lesa. Pojavnost lesno-anatomskih značilnosti je bila v splošnem večja v letu 2010 kot v 2011. To bi lahko pojasnili s presaditvenim šokom in z večjo verjetnostjo povzročitve mehanskih poškodb ob manipulaciji sadik, ki so negativno vplivali na kakovost lesa. Razlike v strukturnih posebnosti lesnih prirastkov v obeh proučevanih letih tudi kažejo na nujnost večletnih tovrstnih poskusov v nadzorovanih razmerah, saj se nekateri odzivi lahko pokažejo šele v daljšem časovnem obdobju. Širina lesnega prirastka in lesno-anatomske značilnosti niso nujno povezane, zato na podlagi priraščanja ne moremo sklepati o kakovosti lesa.
Keywords:rdeči bor, navadna bukev, reakcijski les, smolni kanal, gostotne fluktuacije, juvenilni les, anatomija, kakovost lesa
Publication status:Published
Publication version:Version of Record
Publication date:22.09.2017
Year of publishing:2017
Number of pages:str. 47-57
Numbering:letn. 58, št. 1
PID:20.500.12556/DiRROS-26993 New window
UDC:630*81
ISSN on article:1855-7996
DOI:10.3986/fbg0020 New window
COBISS.SI-ID:4851110 New window
Copyright:Imetniki avtorskih pravic na prispevkih so avtorji
Publication date in DiRROS:28.01.2026
Views:50
Downloads:21
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Record is a part of a journal

Title:Folia biologica et geologica
Publisher:Slovenska akademija znanosti in umetnosti
ISSN:1855-7996
COBISS.SI-ID:248490496 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P4-0107
Name:Gozdna biologija, ekologija in tehnologija
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:L7-2393
Name:Vpliv klimatskih sprememb na trajnost, stabilnost in biodiverziteto sestojev bukve in črnega bora na Balkanu
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J4-7203
Name:Kratkoročni in dolgoročni odzivi hrastov v submediteranu na ekstremne vremenske dogodke s pomočjo drevesno-anatomskih analiz in eko-fizioloških meritev

Licences

License:CC BY-SA 4.0, Creative Commons Attribution-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-sa/4.0/
Description:This Creative Commons license is very similar to the regular Attribution license, but requires the release of all derivative works under this same license.
Licensing start date:22.09.2017
Applies to:VoR

Secondary language

Language:English
Title:Characteristics of wood structure of pine (Pinus sylvestris) and beewch (Fagus sylvatica) seedlings exposed to different environmental regimes
Abstract:Knowledge on structure and properties of wood is crucial for its optimal woodworking, processing and end-use. In the paper, we describe and compare characteristics of wood structure of three-year-old pine (Pinus sylvestris) and beech (Fagus sylvatica) seedlings exposed to different temperature regimes in the growing seasons of 2010-2011: control (K, outdoors, mean temperature during the growing season = 17–19°C), greenhouse (G, mean temperature during the growing season = 22–24°C) and climatized room (C, mean temperature during the growing season = 15–17°C). On transverse-sections of xylem, presence and proportion of the reaction wood, presence of the density fluctuations, presence of callus tissue, and in the case of pine also density and position of the axial resin canals were evaluated. The results show species-specific response of pioneer Scots pine and late-successional beech to different environmental conditions in terms of radial growth and structural characteristics of wood. Incidence of wood-anatomical characteristics were generally higher in 2010 than in 2011. This may be explained by the transplant shock, and higher probability of mechanical wounding of cambium, which have a negative impact on the wood quality, when setting up the experiment. The differences in the structure of xylem increments of 2010 and 2011 demonstrate that a continuation of such observations over several growing seasons is necessary to capture the short- and long-term response of tree growth under changing environmental conditions. Finally, width of the wood increment and wood-anatomical characteristics are not necessarily linked, thus increment width cannot be an indicator of wood quality.
Keywords:Scots pine, common beech, reaction wood, resin canal, density fluctuations, juvenile wood, anatomy, wood quality


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  1. Folia biologica et geologica

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