Wydanie 318(34)2 2015

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https://oa.zut.edu.pl/handle/20.500.12539/715

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Przeglądaj Wydanie 318(34)2 2015 wg Temat "Dyscyplina::Nauki rolnicze::Rolnictwo i ogrodnictwo"

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    PozycjaOpen Access
    Comparison of Growth, Flowering and Bulbs Yield of Four Ornithogalum L. Species Grown in the Ground
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2015) Salachna, Piotr; Zawadzińska, Agnieszka; Department of Horticulture, West Pomeranian University of Technology, Szczecin; Department of Horticulture, West Pomeranian University of Technology, Szczecin
    The aim of the studies in the years 2009–2010, carried out in the climate conditions of Szczecin, was to compare the morphological traits, the course of flowering and the increase in number and weight of bulbs of four species: Arabian starflower (Ornithogalum arabicum L.), Sun star (Ornithogalum dubium Houtt.), Giant Chincherinchee (Ornithogalum saundersiae Bak.), and Chincherinchee (Ornithogalum thyrsoides Jacq.). The bulbs were planted in soil after the 10th of May, and harvested in the first decade of October. The investigated species of Ornithogalum were found to differ significantly in their morphological traits, flowering and bulb yield. Field-grown O. arabicum, O. saundersiae and O. thyrsoides flowered and produced adventitious bulb each year. Among the cultivated species, O. saundersiae was characterized by the longest flowering period, it had the longest leaves and inflorescence scapes, and its inflorescences contained the highest number of flowers. The parent bulbs of O. saundersiae produced also the greatest number of adventitious bulbs. The O. dubium plants did not produce inflorescences or adventitious bulbs in either year of the study.
  • Miniatura
    PozycjaOpen Access
    Comparison of Processing Fruit Quality of Several Grape Varieties Cultivated in Climatic Conditions of Poland and Bulgaria
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2015) Angelov, Ludmil; Stalev, Bojan; Ochmian, Ireneusz; Mijowska, Kamila; Chełpiński, Piotr; Faculty of Viticulture and Horticulture, Agricultural University in Plovdiv, Mendeleev 12, 4000 Plovdiv, Bulgaria; Faculty of Viticulture and Horticulture, Agricultural University in Plovdiv, Mendeleev 12, 4000 Plovdiv, Bulgaria; Department of Horticulture, West Pomeranian University of Technology, Szczecin, Juliusza Słowackiego 17, 71-434 Szczecin, Poland; Department of Horticulture, West Pomeranian University of Technology, Szczecin, Juliusza Słowackiego 17, 71-434 Szczecin, Poland; Department of Horticulture, West Pomeranian University of Technology, Szczecin, Juliusza Słowackiego 17, 71-434 Szczecin, Poland
    Wine producers have been working on selecting the most suitable grape variety for specific regions and therefore improving wine production technology for numerous years. Climate changes lead to change in grape quality; in the future these changes will have to be considered by the vineyard owners as they will affect cultivation methods, harvest dates and vinification process. The aim of this paper is to compare the quality of several grape varieties cultivated in different climatic conditions. Research material was collected from vineyards situated in the Szczecin Lowlands (Poland) and Plovdiv (Bulgaria). The study focused on three grape varieties: Cabernet Sauvignon, Cabernet Franc and Pinot Noir. Measured characteristics included contained physical parameters: ruit weight, bunch weight and length and firmness as well as chemical composition: soluble solids, acidity, pH, ascorbic acid and nitrates levels, anthocyanin index. Analysed fruit was also examined in terms of colouration and must colour changes during maceration. Climatic conditions of the crop location had significant influence on the chemical composition of fruits, for example Bulgarian fruit featured higher levels of extract and pH combined with lower acidity. The Cabernet Sauvignon variety, regardless of crop location, had the highest levels of extract and organic acids. The juice obtained from Bulgarian grapes was darker (L*) than the juice from the fruit harvested in Poland. On the other hand, the juice of Polish fruit had more blue pigment (b*). It was also found that a* and b* fruit colour parameters are highly correlated with the anthocyanin index.