scholarly journals Changes in macroelement content in Nuphar lutea (L.) Sibith. and Sm. during the growing season

2011 ◽  
Vol 78 (2) ◽  
pp. 151-165 ◽  
Author(s):  
Henryk Tomaszewicz ◽  
Hanna Ciecierska
Keyword(s):  
Chemical Composition ◽  
Growing Season ◽  
Eutrophic Lake ◽  
Total Iron ◽  
Nuphar Lutea ◽  
Sodium Calcium ◽  
Water And Sediment ◽  
Chemical Composition Of Water ◽  
Phosphate Nitrate ◽  
Iron Sulphate

This study presents the results of monitoring studies carried out to determine the chemical composition of <em>Nuphar lutea</em> in two phytocoenoses of <em>Nupharo-Nymphaeetum albae</em> Tomasz. 1977 occurring in two lakes of different trophic types (eutrophic Lake Łaśmiady and oligo-humotrophic Lake Pływające Wyspy). The leaves (collected starting in May), rhizomes and roots of <em>Nuphar lutea</em> as well as water and sediment samples were collected from March to November in the above phytocoenoses (for 3 years in Lake Pływające Wyspy and for 4 years in Lake Łaśmiady). The samples were analysed for several parameters including: phosphate, nitrate, total nitrogen, potassium, sodium, calcium, total iron, sulphate and silica dissolved. In addition the manganese, cadmium, zinc and lead contents were determined in the leaves, rhizomes and roots of the plants collected in July (at the height of the growing season). It was found that the differences in the chemical composition of water and sediments between the lakes studied were more pronounced than in the case of leaves, rhizomes and roots of <em>Nuphar lutea</em>.

Heavy metal accumulation of Danube river aquatic plants — indication of chemical contamination

2008 ◽  
Vol 3 (3) ◽  
pp. 285-294 ◽  
Author(s):  
Slobodanka Pajević ◽  
Milan Borišev ◽  
Srđan Rončević ◽  
Dragana Vukov ◽  
Ružica Igić
Keyword(s):  
Heavy Metal ◽  
Chemical Composition ◽  
Aquatic Plants ◽  
Ecological Status ◽  
Heavy Metal Accumulation ◽  
Danube River ◽  
Chemical Pollution ◽  
Chemical Contamination ◽  
Water And Sediment ◽  
Chemical Composition Of Water

AbstractIn this paper, the ecological status of a section of the Danube River flowing through Serbia from Bezdan to Djerdap was evalutated. Using the chemical composition of water, sediment samples from the littoral zone and dominant aquatic macrophytes, the level of chemical pollution was ascertained. Chemical analyses of the water and sediment indicated that the tributaries flowing into the Danube significantly influenced the chemical load of the water and as a direct consequence, the sediment. The concentration of heavy metals including Cu, Mn and Cd found in plants of the Potamogeton genus, further indicated significant chemical pollution, establishing a clear link between the chemical composition of plant tissues and the chemical composition of water and sediment. This paper therefore describes how the chemical composition of aquatic plants can be used as a reliable indicator for heavy metal pollution of aquatic ecosystems.

scholarly journals The Effect of the Manner in Which Montane and Submontane Areas Are Utilized on the Quality of Leachate Water

2021 ◽  
Vol 13 (11) ◽  
pp. 6299
Author(s):  
Piotr Kacorzyk ◽  
Jacek Strojny
Keyword(s):  
Chemical Composition ◽  
Soil Profile ◽  
Arable Land ◽  
Growing Season ◽  
Rational Use ◽  
Chemical Composition Of Water ◽  
Common Opinion ◽  
The Common ◽  
Leachate Water

This study aimed at assessing the effect of how submontane soils are managed on the quantity and quality of leachate water, as well as on the load of nutrients leached with it. The quality of leachate water moving through the soil profile at the depth of 0–30 cm was investigated. The quality of leachate water from six research variants was analyzed in three periods: intensive growing, inhibited growing, and the non-growing season. It was established that the type of flora had a significant effect on the amount and chemical composition of water flowing through the soil profile. The highest loads of minerals were leached with leachate waters from arable land. Contrary to the common opinion, unused meadow had the best quality of leachate waters. On account of the quality of leachate waters in submontane and montane areas, it is recommended to reduce plow tillage in these areas. It is also recommended to use these areas as meadows and pastures, with moderate fertilization and rational use, i.e., two mowings or three grazings during the growing season. The study emphasizes how important the management of the use of submontane and montane areas is for the quality and quantity of leachate waters.

scholarly journals Changes in macroelement content of rhizomes of Nuphar lutea (L.) Sibith. and Sm. during the annual cycle

2011 ◽  
Vol 78 (3) ◽  
pp. 257-262
Author(s):  
Henryk Tomaszewicz
Keyword(s):  
Water Layer ◽  
Growing Season ◽  
Apical Part ◽  
Fresh Matter ◽  
Dissolved Silica ◽  
Nuphar Lutea ◽  
Bottom Water Layer ◽  
Sodium Calcium ◽  
Additional Table ◽  
Matter Basis

This study presents the results of studies on the chemical composition of rhizomes of <em>Nuphar lutea</em> which were carried out from July 2006 to November 2007 (the samples were collected at two-week intervals from March to November 2007). The first indication of the start of the growing season was the growth of leaves in the apical part of the rhizomes. Clearly visible signs that marked the beginning of the growing season were unfolding of leaves, which became arrow-shaped. The leaves had already unfolded and were arrow-shaped (saggitate) on April 10th when the temperature of the bottom water layer was 7<sup>o</sup>C. It may be assumed, therefore, that the growing season began between the 28th March and 10th April 2007. The phosphates, nitrates, sodium, calcium, total iron and sulphates levels in the rhizomes declined just after the growing season had started. The total nitrogen content remained at a constant level whereas the amount of dissolved silica increased. Considerable changes in the macroelement contents were noted when <em>Nuphar lutea</em> was in full bloom (10th-24th June). The macroelement contents presented in the tables and diagrams were expressed on a dry matter basis. An additional table illustrates the macroelement contents expressed on a fresh matter basis. The problem of collecting rhizomes of polycormic plants is discussed.

Influence of the sex and type of tissue on the basic chemical composition and the content of minerals in the sirloin and offal of fattener pigs

2019 ◽  
Vol 99 (2) ◽  
pp. 343-348 ◽  
Author(s):  
Marek Babicz ◽  
Anna Kasprzyk ◽  
Kinga Kropiwiec-Domańska
Keyword(s):  
Chemical Composition ◽  
Mineral Content ◽  
Cadmium Concentration ◽  
Pork Meat ◽  
Threshold Values ◽  
Large White ◽  
Sodium Calcium ◽  
Mineral Components ◽  
Longissimus Lumborum ◽  
The Mean

The aim of the study was to determine the basic chemical composition and mineral content in the sirloin and offal of fattener pigs, taking their sex into consideration. In addition, comparative analysis of the content of chemical and mineral components in the sirloin and offal was performed. The experimental material included 24 crossbred (Polish Landrace × Polish Large White) fatteners, from which samples of sirloin (musculus longissimus lumborum), liver, heart, and kidneys were collected for the analysis. A significant effect of the sex on the fat content in the sirloin and liver and on the level of magnesium (Mg), zinc, and iron (Fe) in the sirloin was demonstrated. Significant differences were found in the basic chemical composition and mineral content between the sirloin and the offal. In comparison with the liver, the sirloin contained lower amounts of protein and fat and higher potassium and Mg contents. In turn, the offal was shown to be a rich source of sodium, calcium, and trace elements (Fe, manganese, and copper). The mean cadmium concentration in the sirloin and offal was significantly lower than the threshold values for these elements, i.e., it accounted for 26% and 6.2% (liver)–19.5% (heart) of the allowable content of this element in pork meat and offal.

scholarly journals Intestinal Glycoproteins of Germfree Rats. II. Further Studies of the Chemical Composition of Water-soluble Extracts from Intestinal Mucus.

1973 ◽  
Vol 27 ◽  
pp. 2997-3002 ◽  
Author(s):  
Jens K. Wold ◽  
Tore Midtvedt ◽  
Randi Winsnes ◽  
Petri Pajunen ◽  
Jouko Koskikallio ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Water Soluble ◽  
Intestinal Mucus ◽  
Chemical Composition Of Water ◽  
Germfree Rats
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