Variability in calcium contents in the needles of Douglas-fir provenances originating from Canada
2012
Lavadinović, Vera (Institute of Forestry, Belgrade (Serbia)) | Miletić, Zoran (Institute of Forestry, Belgrade (Serbia)) | Isajev, Vasilije (Faculty of Forestry, Belgrade (Serbia)) | Popović, Vladan (Institute of Forestry, Belgrade (Serbia)) | Lučić, Aleksandar (Institute of Forestry, Belgrade (Serbia))
Urban development means increased using of quality and fast-growing trees. Douglas-fir is a species that is tolerant to a wide range of natural environmental conditions. As a result, many plantations are established in Europe and it is one of the most promising introduced species in Serbia. To satisfy the needs of timber industries, as well as landscape management and urban areas, the aim of the study was to identify and evaluate all the features and elements of the introduced fast growing species. The dominant conifer species in the forests of North America and Canada is the Douglas-fir (Pseudotsuga mensiesii Mirb / Franco). Biological characteristics and also wood properties of Douglas-fir are the most interesting type of marketing for sawmill not only in America, but in Europe and New Zealand, too. The intensity and dynamics of physiological processes of mineral nutrition of Douglas-fir is one of the important indicators of its successful adaptation and introduction to non-indigenous Douglas-fir habitats. The experimental Douglas-fir habitat was established under the same stand conditions, and the calcium content in the needles was investigated. The established quantities of calcium in the needles are indicative of different capabilities of certain Douglas-fir provenances to adopt this nutritive element from the soil, under the same stand conditions in Serbia.
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