Jožica Gričar (Author), Martin Zupančič (Author), Katarina Čufar (Author), Primož Oven (Author)

Abstract

Seasonal dynamics of xylem formation were studied at a cellular level in Norway spruce (Picea abies) from the lowland forests Sorsko polje (350 m a.s.l.) and the sub-alpine site Pokljuka (1200 m a.s.l.) in Slovenia during the growing season 2003. Th e pinning technique and sampling of intact tissue were performed at weekly intervals to assess the usefulness of both methods for examining wood formation. Pinning induced desiccation of diff differentiated xylem, necrosis of cambial cells and undifferentiated xylem derivatives, and formation of callus, traumatic resin canals and wound-wood. The border between cambial cells and radially expanding cells located inside the callus was a reliable mark for defining the xylem increment reached from the time of wounding. Intact tissue sampling was superior for precise investigations of cambial activity, various developmental stages of tracheids,and for secondary phloem formation.

Keywords

nastanek lesa;kambijeva aktivnost;smreka;Picea abies;intakna tkiva;metoda pining;pining;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL BF - Biotechnical Faculty
Publisher: Slovak Forest Products Research Institute
UDC: 630*81(045)=111
COBISS: 1905830 Link will open in a new window
ISSN: 1336-4561
Views: 1044
Downloads: 365
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Other data

Secondary language: Slovenian
Secondary keywords: nastanek lesa;kambijeva aktivnost;smreka;Picea abies;intakna tkiva;metoda pining;pining;
File type: application/pdf
Type (COBISS): Article
Pages: str. 1-9
Volume: ǂVol. ǂ52
Issue: ǂno. ǂ2
Chronology: 2007
ID: 10847067