Wydanie 340(45)1 2018
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Przeglądaj Wydanie 340(45)1 2018 wg Autor "Department of Horticulture, West Pomeranian University of Technology, Szczecin, Poland"
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Pozycja Open Access Alleviating Effects of Ascorbic Acid on Lead Toxicity in Goji (Lycium barbarum L.) in Vitro(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2018) Krupa-Małkiewicz, Marcelina; Kruczek, Arleta; Pelc, Justyna; Smolik, Beata; Ochmian, Ireneusz; Department of Plant Genetics, Breeding and Biotechnology, West Pomeranian University of Technology, Szczecin, Poland; Department of Horticulture, West Pomeranian University of Technology, Szczecin, Poland; Department of Plant Physiology and Biochemistry, West Pomeranian University of Technology, Szczecin, Poland; Department of Plant Physiology and Biochemistry, West Pomeranian University of Technology, Szczecin, Poland; Department of Horticulture, West Pomeranian University of Technology, Szczecin, PolandLead (Pb) is the most common heavy metal pollutant in the environment. The objective of the presented study was to investigate the ameliorative effect of exogenous 1 mM ASA on key growth and biochemical parameters in Lycium barbarum seedlings under heavy metal (Pb(NO3)2) stress in vitro. Nodal cutting with an axillaries bud were used as an explants. The results showed that lead accumulation in goji explants had negative influence on morphological parameters of plant growth, such as shoot and root length. Lead caused a significant reduction in chlorophylls and carotenoid content, increased lipid peroxidation and induced significant accumulation of proline in goji leaves. Addition to MS medium 1 mM ASA greatly alleviated Pb-induced growth inhibition and Pb-induced MDA and proline accumulation. Presence of ASA in the MS medium under heavy metal stress increased plant fresh and dry mass with no significant effect on plant water content.Pozycja Open Access Evaluation of Content of Selected Macro- and Micronutrients in Edible Parts in Wintering Onion Cultivated for Bunches(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2018) Rekowska, Ewa; Jurga-Szlempo, Barbara; Żurawik, Agnieszka; Department of Horticulture, West Pomeranian University of Technology, Szczecin, Poland; Department of Horticulture, West Pomeranian University of Technology, Szczecin, Poland; Department of Horticulture, West Pomeranian University of Technology, Szczecin, PolandAn advantage of overwintering onion in the field is the possibility of earlier supply of fresh, field-cultivated onion to the market. Many experiments with onion wintering in the fields have been conducted in Poland recently. Earlier market supply of fresh onion grown in the field is an undoubted advantage of that method. Early onions with green leaves foliage is an attractive vegetable and is characterized by greater biological value than onion stored for a long time. It is a very rich source of components important in human nutrition. The aim of the research was to evaluate content of macronutrients: total nitrogen, phosphorus, potassium, calcium, magnesium and sulphur as well as selected micronutrients (manganese, iron, copper and zinc) in edible parts (leaves foliage and bulb) of wintering onion cultivar Amigo F1 depending on the method of cultivation (growing under polypropylene non-woven covering and without covers – control object). On the basis of obtained results, different content of mineral components depending on kind of eatable part of plant was found. Significantly higher content of total nitrogen (on the average 28.73 g - ka–1 d.m.), potassium (on the average 42.22 g - kg–1 d.m.), calcium (8.77 g - kg–1 d.m.), magnesium (on the average 2.21 g - kg–1 d.m.) and sulphur (3.37 g - kg–1 d.m.) was found in leaves foliage in comparison with unripe bulbs. Also significantly higher content of manganese (on the average 28.97 mg -kg–1 d.m.), iron (459.85 mg - kg–1 d.m.) and copper (on the average 6.67 mg - kg–1 d.m.) was found in leaves foliage than in bulbs. Method of winter onion cultivation with plants covering with non-woven PP 17 affected the increase of content of magnesium, sulphur, manganese, iron and copper in comparison with method of cultivation without covers.