Flowering phenology of populus nigra l., populus nigra cv. italica and p. w canadensis moench. And the potential for natural hybridisation in Belgium

An Vanden Broeck, Karen Cox, Paul Quataert, E Van Bockstaele, Jos Van Slycken

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    The presence of hybrid and exotic poplar plantations is considered to pose a severe potential threat to the native populations of Populus nigra in Western Europe. To evaluate the potential risks associated with the use of exotic or hybrid poplar plantations, particularly plantations of P. canadensis and P. nigra cv. italica [P. nigra var. italica] (Lombardy poplar), in the surroundings of natural P. nigra stands, the flower biology of a collection of P. nigra, P. canadensis and P. nigra cv. italica, was assessed. The results of this study showed that, in this stand and over the two years of observation, the flowering time did not constitute a barrier to hybridization between P. nigra and P. canadensis. In contrast, it appears that during both springs, P. nigra cv. italica could not hybridize with native female black poplars and female P. canadensis trees in the stand, due to non-synchrony of flowering.
    TaalEngels
    TijdschriftSilvae genetica
    Volume52
    Exemplaarnummer5-6
    Pagina's (van-tot)280-283
    Aantal pagina's4
    StatusGepubliceerd - 2003

    Thematische lijst

    • Soorten en biotopen

    EWI Biomedische wetenschappen

    • B004-plantkunde

    Taxonomische lijst

    • populier (Populus spp.)

    Beleidsmatig

    • biodiversiteitsbeleid

    Geografische lijst

    • België

    Technologisch

    • veldwerk (observatie en staalname)

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