BF, Dept. of Wood Technology, Lj. (BFLES)
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Anatomske, kemijske in sorpcijske lastnosti beljave in jedrovine rdečega bora = Anatomical, chemical and sorption properties of sapwood and heartwood of Scots pineMerela, Maks ...V pričujoči študiji smo preučevali anatomske, kemijske in izbrane fizikalne lastnosti beljave in jedrovine rdečega bora (Pinus sylvestris L.) in tudi morebitni vpliv ekstraktivov na sorpcijske ... lastnosti borovine. Študija je bil opravljena na 6 testnih drevesih. Anatomske preiskave so bile narejene s klasično svetlo-poljsko mikroskopijo. Preiskovanje vzorcev za določanje dimenzijske stabilnosti in sorpcijskih lastnosti je potekalo po uravnovešanju v steklenih klima komorah. Vzorce za kemijsko analizo smo ekstrahirali s cikloheksanom ter z zmesjo acetona in vode, delež celokupnih fenolov pa smo kolorimetrično določili z UV-Vis spektrofotometrijo. Razlike med beljavo in jedrovino so se pokazale v smolnih kanalih, v lumnih aksialnih traheid ob trakovih ter v trakovnih parenhimskih celicah in v obokanih piknjah. Delež ekstraktivnih snovi v jedrovini je bil večji kot v beljavi. Preiskave beljave in jedrovine niso pokazale statistično značilnih razlik v gostoti v absolutno suhem stanju, pri točki nasičenja celičnih sten, diferencialnem nabrekanju v radialni smeri in ne pri koeficientu nabrekanja v tangencialni smeri. Izkazalo se je, da se prečna krčitvena anizotropija, diferencialni nabrek v tangencialni smeri, koeficient nabrekanja v radialni smeri ter sorpcijski kvocient razlikujejo pri beljavi in jedrovini rdečega bora. Omenjene razlike lahko pripišemo vzajemnemu učinku anatomskih in kemičnih značilnosti obeh kategorij lesa, vsekakorSource: Acta Silvae et Ligni. - ISSN 2335-3112 ([Št.] 119, 2019, str. 43-54)Type of material - article, component partPublish date - 2019Language - slovenianCOBISS.SI-ID - 5516198
Author
Merela, Maks |
Turičnik, Vanja |
Vek, Viljem |
Oven, Primož
Topics
rdeči bor |
Pinus sylvestris L. |
sorpcijske lastnosti |
beljava |
jedrovina |
ekstraktivi |
anatomija lesa |
Scots pine |
Pinus sylvestris L. |
sorption properties |
sapwood |
heartwood |
extractives |
wood anatomy
Shelf entry
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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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Merela, Maks | 24676 |
Turičnik, Vanja | |
Vek, Viljem | 30758 |
Oven, Primož | 11223 |
Source: Personal bibliographies
and: SICRIS
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