Wydanie 325(37)1 2016

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https://oa.zut.edu.pl/handle/20.500.12539/710

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Przeglądaj Wydanie 325(37)1 2016 wg Autor "Department of Plant Physiology and Biochemistry, West Pomeranian University of Technology, Szczecin"

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  • Miniatura
    PozycjaOpen Access
    Evaluation of the biological value of the dandelion leaves (Taraxacum officinale weber ex wigg.) grown on soil contaminated with copper
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2016) Studziński, Mateusz; Grzeszczuk, Monika; Department of Plant Physiology and Biochemistry, West Pomeranian University of Technology, Szczecin; Department of Horticulture, West Pomeranian University of Technology, Szczecin
    The experiment was conducted in 2013. Research material included the leaves of a dandelion (Taraxacum officinale Weber ex Wigg.) – roots with the above-ground part, gathered before tying of flower baskets (Taraxaci radix cum herba). Laboratory analyses, which were the continuation of the pot experiment, were conducted in the laboratory of the Department of Horticulture of the West Pomeranian University of Technology in Szczecin. In the dried plant material (dandelion leaves) the content was determined: of dry mass and total ash, vitamin C as L-ascorbic acid, chlorophyll a, b and total, total carotenoid and antioxidant activity. Based on the obtained results it was found that both the biometric features of the dandelion plants and their biological value subjected to significant changes depending on the amount of copper contained in the soil and the crop harvest date.
  • Miniatura
    PozycjaOpen Access
    Structure and floristic diversity of the community Calamagrostietum Epigeji Juraszek 1928 within different biotopes
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2016) Kutyna, Ignacy; Młynkowiak, Elżbieta; Malinowska, Katarzyna; Department of Ecology, Environmental Protection and Development, West Pomeranian University of Technology, Szczecin,; Department of Ecology, Environmental Protection and Development, West Pomeranian University of Technology, Szczecin,; Department of Plant Physiology and Biochemistry, West Pomeranian University of Technology, Szczecin
    The aim of the present paper was to determine the structure and floristic diversity of Calamagrostietum epigeji occurring within different biotopes (sand and gravel post-excavation pits, “Gilow” post-flotation waste dump, and an urban area in Szczecin). Based on previous publications, a synthetic table was compiled to present the phytosociological constancy (S) and cover coefficient (D) of species occurring in the analysed phytocoenoses. Analysis of the similarity between the communities was performed with the UPGMA method and Euclidean distances on the basis of species phytosociological constancy using the Statistica PL package. Similarity coefficients were also calculated for the distinguished phytocoenoses with the Sorensen method and the results were presented in Czekanowski’s diagram. As revealed by the UPGMA method, the greatest similarity was exhibited by communities developing within the “Storkowo I” and “Storkowo II” pits and in the “Mielenko Drawskie” pit. These phytocoenoses, which are undergoing the initial succession stage, are characterised by distinct dominance of Calamagrostis epigejos and a low number of species (from 38 to 49 taxa, on average from 10 to 15 per releve). The other group comprises communities representing later stages of succession from the “Gilow” post-flotation waste dump and the long abandoned “Krzynka” and “Szczecin- -Żydowce” pits. These phytocoenoses exhibit substantially higher floristic richness (from 61 to 114 species, on average from 15 to 20 per releve); hence, the cover coefficient of the bushgrass is considerably lower. The urban area in Szczecin is the most diverse biotope, in which, due to the more favourable soil conditions, rich phytocoenoses characterised by a mean number of 25 taxa per releve and a low cover of Calamagrostis epigejos have developed.