scholarly journals CHEMICAL COMPOSITION OF EDIBLE POTATO TUBERS IN RETAIL OUTLETS IN EAST-CENTRAL POLAND

2015 ◽  
Vol 16 ◽  
pp. 57-61 ◽  
Author(s):  
Krystyna Zarzecka ◽  
Marek Gugała ◽  
Iwona Mystkowska ◽  
Magdalena Zarzecka
Keyword(s):  
Chemical Composition ◽  
Potato Tubers ◽  
East Central ◽  
Central Poland ◽  
Retail Outlets

Macroinvertebrate Occurrence in Chlidonias niger (Charadriiformes: Laridae) Nests in East-Central Poland

2017 ◽  
Vol 52 (3) ◽  
pp. 288-292 ◽  
Author(s):  
Artur Golawski ◽  
Izabela Hajdamowicz ◽  
Sylwia Golawska
Keyword(s):  
East Central ◽  
Central Poland ◽  
Chlidonias Niger

Brood sex ratio in expansive and non-expansive tern species in east-central Poland

Bird Study ◽  
2016 ◽  
Vol 63 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Artur Goławski ◽  
Zbigniew Kasprzykowski ◽  
Mateusz Ledwoń ◽  
Emilia Mróz ◽  
Federico Morelli
Keyword(s):  
Sex Ratio ◽  
East Central ◽  
Central Poland ◽  
Brood Sex Ratio

Biologically Active Nanomaterials in Potato Growing

2017 ◽  
Vol 13 ◽  
pp. 91-95 ◽  
Author(s):  
Margarita V. Samoylova ◽  
Dmitriy G. Churilov ◽  
Anna A. Nazarova ◽  
Svetlana D. Polishchuk ◽  
Nikolai V. Byshov
Keyword(s):  
Chemical Composition ◽  
Humic Acids ◽  
Physiological Parameters ◽  
Biologically Active ◽  
Cobalt Oxides ◽  
Potato Tubers

The article presents the influence of different nanomaterials such as nanopowders of ferrum, cobalt and cuprum, suspensions of copper and cobalt oxides nanoparticles and ultrafine humic acids on potato breed “Latona”. We have studied the influence of nanomaterials on morphological and physiological parameters of plants, the yield, its structure and chemical composition of potato as well as on vitamins C and PP in potato tubers. On the basis of investigations we have recommended introduction of biologically active nanomaterials into intensive technology of growing the crop.

scholarly journals Factors influencing temporal changes in chemical composition of biogenic deposits in the middle Tążyna River Valley (Kuyavian Lakeland, central Poland)

Geologos ◽  
2016 ◽  
Vol 22 (2) ◽  
pp. 121-136
Author(s):  
Daniel Okupny ◽  
Seweryn Rzepecki ◽  
Ryszard Krzysztof Borówka ◽  
Jacek Forysiak ◽  
Juliusz Twardy ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Environmental Changes ◽  
Saline Water ◽  
Anthropogenic Activities ◽  
Principal Component ◽  
Archaeological Site ◽  
Central Poland ◽  
Geochemical Properties ◽  
Geochemical Elements ◽  
Micro Elements

Abstract The present paper discusses the influence of geochemical properties on biogenic deposits in the Wilkostowo mire near Toruń, central Poland. The analysed core has allowed the documentation of environmental changes between the older part of the Atlantic Period and the present day (probably interrupted at the turn of the Meso- and Neoholocene). In order to reconstruct the main stages in the sedimentation of biogenic deposits, we have used stratigraphic variability of selected litho-geochemical elements (organic matter, calcium carbonate, biogenic and terrigenous silica, macro- and micro-elements: Na, K, Mg, Ca, Fe, Mn, Cu, Zn, Pb, Cr and Ni). The main litho-geochemical component is CaCO3; its content ranges from 4.1 per cent to 92 per cent. The variability of CaCO3 content reflects mainly changes in hydrological and geomorphological conditions within the catchment area. The effects of prehistoric anthropogenic activities in the catchment of the River Tążyna, e.g., the use of saline water for economic purposes, are recorded in a change from calcareous gyttja into detritus-calcareous gyttja sedimentation and an increased content of lithophilous elements (Na, K, Mg and Ni) in the sediments. Principal component analysis (PCA) has enabled the distinction the most important factors that affected the chemical composition of sediments at the Wilkostowo site, i.e., mechanical and chemical denudation processes in the catchment, changes in redox conditions, bioaccumulation of selected elements and human activity. Sediments of the Wilkostowo mire are located in the direct vicinity of an archaeological site, where traces of intensive settlement dating back to the Neolithic have been documented. The settlement phase is recorded both in lithology and geochemical properties of biogenic deposits which fill the reservoir formed at the bottom of the Parchania Canal Valley.

scholarly journals Multi-trait Analysis of Agroclimate Variations During the Growing Season in East-Central Poland (1971-2005)

2015 ◽  
Vol 29 (2) ◽  
pp. 213-219 ◽  
Author(s):  
Elżbieta Radzka ◽  
Katarzyna Rymuza
Keyword(s):  
Principal Component Analysis ◽  
Air Temperature ◽  
Meteorological Data ◽  
Principal Component ◽  
Growing Season ◽  
Component Analysis ◽  
The South ◽  
East Central ◽  
Central Poland ◽  
The North

Abstract The work is based on meteorological data recorded by nine stations of the Institute of Meteorology and Water Management located in east-central Poland from 1971 to 2005. The region encompasses the North Podlasian Lowland and the South Podlasian Lowland. Average values of selected agroclimate indicators for the growing season were determined. Moreover, principal component analysis was conducted to indicate elements that exerted the greatest influence on the agroclimate. Also, cluster analysis was carried out to select stations with similar agroclimate. Ward method was used for clustering and the Euclidean distance was applied. Principal component analysis revealed that the agroclimate of east-central Poland was predominantly affected by climatic water balance, number of days of active plant growth, length of the farming period, and the average air temperature during the growing season (Apr-Sept). Based on the analysis, the region of east-central Poland was divided into two groups (areas) with different agroclimatic conditions. The first area comprized the following stations: Szepietowo and Białowieża located in the North Podlasian Lowland and Biała Podlaska situated in the northern part of the South Podlasian Lowland. This area was characterized by shorter farming periods and a lower average air temperature during the growing season. The other group included the remaining stations located in the western part of both the Lowlands which was warmer and where greater water deficits were recorded.

The influence of specific gravity and chemical composition on hardness of potato tubers after cooking

1959 ◽  
Vol 36 (3) ◽  
pp. 105-112 ◽  
Author(s):  
M. K. Sharma ◽  
D. R. Isleib ◽  
S. T. Dexter
Keyword(s):  
Chemical Composition ◽  
Specific Gravity ◽  
Potato Tubers
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