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1 Polish Journal of Ecology

1 2004

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Interaction between canopy tree species and European yew Taxus baccata (Taxaceae)

Iszkuło G., Boratyński A.

Polish Journal of Ecology

2004

Vol. 52, nr 4

523-531

The aim of the study was an examination of the thesis, that canopy tree genera (species) can have positive or negative influence on the germination of seeds and growth of seedlings and saplings of Taxus baccata. The species population spontaneously formed in the Kórnik Arboreum (W Poland) during last decades was the field of investigations. All yew individuals (including seedlings) were positioned and measured on two plots (area 1900 and 2000 m^2) permanently marked in the field. The crown ranges of canopy trees and tree-like yews were measured and projected on the maps. The numbers of seedlings, saplings and tree-like yews under canopies of particular tree genera were compared. The seeds of T. baccata germinated under canopies of all species, most abundantly under the canopy of Pseudotsuga and Abies, but also under mother trees. Seedlings older than 2 years were also most numerous under the canopy of conifferous trees, while the saplings under the canopy of broadleaved trees. The greatest numbers of tree-like individuals were found under Tilia and Carpinus species.