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The paper provides an analysis of the variability in grain yield by a number of the winter wheat cultivars in Lower Silesia based on Post-Registration Variety Testing experiments carried out in 2010, 2011 and 2013. The study analyzes the yield values of nine winter wheat cultivars obtained intrials performed within the frames of the Post-Registration Variety Testing Agrotechnical System(PDO) in Lower...
Two methods were used in a laboratory experiment to assess the effect of stimulation of sugarbeet seed clusters. Four duration times of exposure to magnetic field (MF) were used:P1(10 s),P2(30 s),P3(60 s) andP4(300 s) and two different doses of semiconductor laser radiation (LR) applied(five-and ten-fold irradiation by the basic dose of 0.25 J cm–2, respectively). Subsequently, the sowingvalue of...
The aim of this study was to identify changes in the physical properties of fenugreek seeds(Trigonella foenum-graecumL.), observed in agricultural experiments with multifactorial designs.The thousand seed weight, true density, bulk density, color and spectral composition, linear dimensions, shape factors and textural properties of fenugreek seeds were determined. The resultswere processed statistically...
Poultry meat, with regard to lower fat content than the one in other animal species, is consideredby consumers as dietetic. It also constitutes a source of complete protein, iron and minerals. It is alsocheaper than red meat. In recent years, national poultry meat market has been developing very dynamically, and Poland with poultry meat production at the level of 2,420,000 tons belongs tosignificant...
Air pollution is mentioned as one of the major factors that limit the occurrence of epiphytes inurban areas. The purpose of the investigation was to analyze any dissimilarity in the amount of heavy metals and sulphur to the bark of different tree species that had been subjected to bark pollution (pH values were also analyzed). In order to estimate the differences in the amount of pollutants that hadreached...
The aim of this study was to compare the quality of meat from four carcass cuts (neck, saddle,shoulder and leg) in 10 male fallow deer (Dama damaL.) aged between 4 and 5 years. The animalswere hunter-harvested in the forests of north-eastern Poland. Lower moisture content in meat from the saddle and neck resulted from a higher protein and fat content, as compared with meat from the shoulder and leg...
The aim of the research was to assess the quality of 21 soil-grown determinate tomato varieties.All of them are recommended for crop production in Polish climate conditions. The colour of fruitsand the contents of dry mass, extract, total sugars, vitamin C and carotenoids were analysed. It is not feasible to select one single variety with high levels of all the studied parameters. The varieties with...
The paper presents the results of lichenological research conducted in the “Pupy” Forest Nature Reserve (NE Poland). The aim of the study was to investigate the species composition of lichens and to determine the role and importance of forest plant communities to the diversity of these organisms.Field studies were carried out at seven study sites (plots), each with an area of 0.1 ha. The plots were...
The aim of the study was to analyse the content and profile of carotenoids, polyphenols content,the capacity to scavenge DPPH radical, the content of neutral detergent fibre, acid detergent fibreand hemicellulose, cellulose and lignin fractions in carrot pomace dried with different methods. Fresh carrot pomace obtained as a by-product during the extraction of juice from Nantejska carrot was usedin...
The history of legal protection of animals in Poland dates back to the early 20th century. The legal solutions adopted at that time in the form of regulations of the President of the Republic of Poland and acts of the Parliament were in force for decades. The turn of the 20th century brought some dramatic changes in this regard. Parliamentary acts, both newly passed and amended, harmonised Polish...
Kudypy Forest District lies in the Province of Warmia and Mazury, in the vicinity of Olsztyn, the capital city of the province. The surface area of this District is almost 18 thousand ha. Kudypy Forest District belongs to the Forest Promotional Complex called the Olsztyn Forests, which covers the areas of two forest districts: Kudypy and Olsztyn. Kudypy Forest District is composed of 13 forestries...
The aim of this study was to investigate the effect of replacing sucrose 25%, 50%, 75% and 100% of the addition of stevia on yoghurt properties, during refrigerated storage. Reference sample was yoghurt sweetened with 8% added sucrose, the addition of stevia was 0,04%. The yoghurt was analysed for pH, titratable acidity, dry matter, and texture. It was also sensory assessed. With the increase in the...
Thermal and oxygen conditions of lake ecosystems are important for their functioning. The availability of detailed information is of particular importance in the context of the observed environmental changes. The paper presents thermal-oxygen conditions in Lakes Roś and Rospuda Filipowska in north-eastern Poland in the years 2005–2014 for the summer half-year (May – October). Both of the lakes are...
The qualitative and quantitative increase in market offerings has led to an increased significance of purchasers in the market and has changed their expectations over a short period of time. Consumer’s role has changed from a suppliant to a strong entity with high demands addressed at producers and service providers. The strong position of consumers has spawned an increasedre search interest in consumer...
The use of a reliable zooplankton sample collection method is important for the quantitative and qualitative assessment of the food source available for juvenile fish. The effectiveness of zooplankton collection in illuminated cages is related to its concentration in the subsurface layer of water around or under the light source. The aim of this study was to compare the effectiveness of three zooplanktonsample...
This article contains results of a study the objective of which has been to identify the effect of socio-economic characteristics of consumers on: frequency of fish consumption, preferred form and place of fish purchase. Additionally, the degree to which the above properties affected fish purchase was estimated. Moreover, subjective opinions of consumers on the circumstances of fish consumption were...
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