Cambial Activity of the Sessile Oak (Quercus petraea) in Belgrade Forest, ‹stanbul


AKKEMİK Ü. , Çınar Yılmaz H., SEVGİ O.

TURKISH JOURNAL OF AGRICULTURE AND FORESTRY, vol.30, pp.429-438, 2006 (Refereed Journals of Other Institutions)

  • Publication Type: Article / Article
  • Volume: 30
  • Publication Date: 2006
  • Title of Journal : TURKISH JOURNAL OF AGRICULTURE AND FORESTRY
  • Page Numbers: pp.429-438

Abstract

 

The cambium activity of Quercus petraea (Mattuschka) Liebl. (sessile oak) in Atatürk Arboretum (Belgrade Forest,
‹stanbul) was studied by mounting 5 manual and 5 electronic dendrometers on 5 dominant trees very near to each other (2-5 m).
Cambium activity began during the first week of May in 2003, and 1 month earlier, the first week of April, in 2004. The fast
growing season for both years was May to July, accounting for 90% of diameter increase. Earlywood/latewood ratios measured on
tree rings varied principally with changes in latewood widths, as affected by climate. The highest and most significant correlations
were between soil moisture at different depths and 10-day lagged growth forward, 0.78-0.96 in 2003, and 0.22-0.79 in 2004.
We found only slight summer dormancy in this humid region, restricted to dry and hot summer days.