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Acer pseudoplatanus - Technical guidelines for genetic conservation and use for sycamore

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Slovenian  [2] Italian  [3]

Genetic conservation aims at ensuring continuous survival and adaptability of the target species. These proposed guidelines reflect the view that sycamore is not considered an endangered species. Sycamore has significant potential for forestry, and its use as a timber resource should be promoted. In most cases this will require intensive management, since on fertile soils sycamore is easily suppressed by beech. If sycamore is regenerated artificially, special attention should be given to the choice of seed source. For gene conservation, a low intensity in situ conservation approach is recommended. One possibility is to include already existing nature reserves in gene conservation programmes. This requires the reserves to be managed to maintain a broad genetic base in species, so that the potential for future adaptation is safeguarded. A further step of gene conservation is to establish a network of in situ conservation stands. To capture the existing adaptability, at least 20 populations of about 50 flowering and seed producing individuals, spread over the natural distribution area of the species, should be selected and allowed to differentiate over time. The marginal areas in the distribution should also be covered. When selecting conservation stands, putative hybrids with ornamental cultivars (colour and leaf variants) should be excluded. The in situ network should secure adaptation to changing environments over the whole range of the species. In areas where stands of 50 sycamore trees are not available, ex situ collections should be established to complement the in situ approach. The ex situ collections can be used for both conservation and seed production, and should be designed to enhance variability within a region and avoid inbreeding. Secondary breeding activities for timber improvement are also conceivable.

Authors: ;
Corporate Author: European Forest Genetic Resources Programme; International Plant Genetic Resources Instit., Rome (Italy)
Journal/Series: EUFORGEN Technical Guidelines for Genetic Conservation and Use 
Publication Years: 2003
Publication Format: Folder; PDF
ISBN 10: 92-9043-565-8
ISBN 13: 978-92-9043-565-5
Language: EN
Pages: 6 p.

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http://www.euforgen.org/publications/publication/iacer-pseudoplatanusi-technical-guidelines-for-genetic-conservation-and-use-for-sycamore/

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