Cambial activity and wood formation in beech (Fagus sylvatica) during the 2006 growth season

Katarina Čufar (Avtor), Peter Prislan (Avtor), Jožica Gričar (Avtor)

Povzetek

Cambial seasonal activity and the dynamics of xylem growth ring formation were studied during the 2006 growth season in mature beech (Fagus sylvatica) trees at a forest stand near Ljubljana, Slovenia. Cross-sections of tissues taken from living trees at weekly intervals were studied with light microscope. Cambial cell divisions began between 18 and 24 April, the cambium achieved maximum width (10-13 cell layers) at the end of May, and cell divisions ceased between 25 July and 16 August. Dormant cambium contained 3 to5 cell layers. Fitting xylem increments to the Gompertz function showed that the period of most intense cell production was from 30 May to 6 June 2006.The average width of fully formed xylem growth rings was 2552 mm, and the time necessary for their formation was 100 days. Although the investigated trees were healthy and of comparable age, the parameters of the Gompertz function showed differences in radial growth patterns among trees.

Ključne besede

European beech;Fagus sylvatica;cambium;wood formation;cell differentiation;xylem growth rings;Gompertz function;light microscopy;

Podatki

Jezik:	Angleški jezik
Leto izida:	2008
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL - Univerza v Ljubljani
Založnik:	Slovak Forest Products Research Institute
UDK:	630*811.1
COBISS:	1694345
ISSN:	1336-4561
Št. ogledov:	1094
Št. prenosov:	560
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Neznan jezik
Sekundarne ključne besede:	bukev;navadna bukev;kambij;nastanek lesa;diferenciacija celic;branike v lesu;Gompertzova funkcija;svetlobna mikroskopija;
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Delo ni kategorizirano
Strani:	str. 1-11
Letnik:	ǂVol. ǂ53
Zvezek:	ǂno. ǂ4
Čas izdaje:	2008
ID:	8631619