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Content of Heavy Metals in the Reed Canarygrass (Phalaris Arundinacea L.) in the First Year of Harvest

Content of Heavy Metals in the Reed Canarygrass (Phalaris Arundinacea L.) in the First Year of Harvest

One of the major factors in achieving more biofuel is the amount of crop yield, but that is not synonymous with the yield quality. Plants are contaminated by heavy metals not only through the soil, but also from atmospheric pollution. The aim of this research was to establish the amount of heavy metals in the dry matter of reed canarygrass (Phalaris arundinacea L.). The Marathon variety of reed canarygrass was studied with two sowing periods and four N-fertilizer rate applications. The concentration level of arsenic (As), cadmium (Cd), lead (Pb) and titanium (Ti) in the samples of reed canarygrass were analysed with the coupled plasma optical emission spectrometer Perkin Elmer 2100 DV. The samples of reed canarygrass taken in April had a greater concentration of As, Cd, Pb, which means that the plants absorb the heavy metals also from the snow covering. The first year yield of reed canarygrass established a fundamental negative correlation between the amount of As, Cd, Pb and the ash content. The samples taken in April have a greater heavy metal contamination, than the samples taken in October. The sowing period fundamentally affected the concentration of lead in reed canarygrass samples, but the level of N-fertilizer rate application affected the amount of cadmium and arsenic.

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Application of Statistical Methods for Analysis of Agricultural Runoff Monitoring Data

Application of Statistical Methods for Analysis of Agricultural Runoff Monitoring Data

The paper presents a study on water quality concerning nutrients in relation to the hydrological and meteorological conditions in three agricultural catchments in Latvia. Statistical analysis, i.e., descriptive statistics, Kolmogorov-Smirnov test, Mann-Whitney U test, Spearman's Rank-Order correlation and cumulative probability function has been used to quantify relationships between variables. Results of the study could be used to evaluate the impact of agricultural intensity on water quality.

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Aquatic beetles (Coleoptera) of carbonate habitats in the vicinities of Chełm (eastern Poland)

Aquatic beetles (Coleoptera) of carbonate habitats in the vicinities of Chełm (eastern Poland)

In the years 2008-2009 aquatic beetles (Coleoptera: Adephaga, Hydrophiloidea, Dryopoidea) of carbonate habitats were studied in the vicinity of Chełm. It is one of the most valuable natural areas of Poland, refugium of many rare species of plants and animals of xerothermophilic and aquatic habitats (mainly fens).

109 species of beetles were recorded (38% of Polish fauna among the studied families). In the research area Berosus geminus has the only site known in Poland which outlines the northern border of the whole species distribution area. On the edges of dense parts of their distribution areas there are also recorded sites of: Gyrinus suffriani, Haliplus furcatus, Spercheus emarginatus, Hydrophilus aterrimus and Dryops anglicanus. There were recorded 12 rare species occurring in Poland and five from the Polish Red List, as well as several rare and endangered species in the Lublin province.

Analysis of faunistic and ecological indicators proved that in the relatively habitat-homogenous research area, the most important for forming assemblages of beetles is the spatial structure of the water body. No correlation was displayed in the distance between the sites and their faunistic similarity, which indirectly indicates a low level of beetle migration.

Unmeliorated fens were characterized by the most natural fauna. With partial melioration it was deeply disturbed and very impoverished with stenotopic species. On completely meliorated fens fauna was again natural to a large extent, however, fen species occurred exclusively in ditches and canals, being very dependent on their form and human water management. Water fauna on carbonate habitats can be assessed as quite typical of fens in general - except for clearly evident presence of argilophilic species, which could result from a higher water reaction and larger fertility connected with a big amount of dissolved in water lime compounds.

Very interesting from ecological perspective and valuable for beetle protection turned out to be small water-courses of the research area, also those strongly transformed by human and even artificial ones. Their long sections have a structure which is favourable for species diversity and occurrence of valuable beetles.

The research area proved to be high quality refugium for aquatic beetles associated with dystrophic water bodies and small running waters.

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Sex ratio adjustment in birds

. Brood sex ratio and male UV ornamentation in Blue tits (Cyanistes caeruleus) : correlational evidence and an experimental test. - Behavioral Ecology and Sociobiology 61: 853-862. Dickinson, J. L. 2004. Facultative sex ratio adjustment by Western bluebird mothers with stay-athome helpers-at-the-nest. - Animal Behaviour 68: 373-380. Dijkstra, C., Daan, S. & Buker, J. B. 1990. Adaptive seasonal variation in the sex-ratio of kestrel broods. - Functional Ecology 4: 143-147. Dijkstra, C., Daan, S. & Pen, I. 1998. Fledgling

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Evaluation of Predictive Capabilities of Regression Models and Artificial Neural Networks for Density and Viscosity Measurements of Different Biodiesel-Diesel-Vegetable Oil Ternary Blends

transportation fuel. Energy Policy 2007:35(9):4661-70. doi: 10.1016/j.enpol.2007.04.003 [22] Bilgin A., Gulum M., Koyuncuoglu I., Nac E., Cakmak A. V. Determination of transesterification reaction parameters giving the lowest viscosity waste cooking oil biodiesel. Social and Behavioral Sciences Procedia 2015:195:2492-500. doi: 10.1016/j.sbspro.2015.06.318 [23] Gulum M., Bilgin A. Measurements and empirical correlations in predicting biodiesel-diesel blends’ viscosity and density. Fuel 2017:199:567-77. doi: 10.1016/j.fuel.2017

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Variations of Particulate Matter Concentrations and Particle-Associated Substances in Latvia

-1041. Yuan, C. S., Lee, C. G., Liu, S. H. , et. al. Correlation of atmospheric visibility with chemical composition of Kaohsiung aerosols. Atmospheric Research , 2006, vol. 82, p. 663-679. Perez, N., Pey, J., Querol, X. , et. al. Partitioning of major and trace components in PM 10 , PM 2.5 , PM 1 at an urban site in Southern Europe. Atmospheric Environment , 2008, vol. 42, p. 1677-1691. Querol, X., Alastueya, A., Ruiz, C. R. , et. al. Speciation and origin of PM 10 and PM 2.5 in selected European cities. Atmospheric

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Effect of nanosilver on potato plant growth and protoplast viability

. Plant Physiol. 50: 117-124. Arifa S., Subramanim S., Lawson, T., Avistunenko D., Colbeck L., Demidchik V. 2012. Nanoparticle inhibit root and leaf growth, induce generation of reactive oxygen species and trigger elevation of cytosolic calcium in Arabidopsis thaliana . In: Abstracts of Plant Biology Congress. 29 July - 3 August, 2012, Albert - Ludwigs - University Freiburg, Germany, p 296. Batarseh K. I. 2004. Anomaly and correlation of killing in the therapeutic properties of silver (I) chelation with glutamic and tartaric acids. J

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Biochemical characteristics of myofibrillar proteins of the fish parasite Isoparorchis hypselobagri (Trematoda) as survival traits in an oxygen-rich environment

References Ahmad R., Hasnain A. 2006. Correlation between biochemical properties and adaptive diversity of skeletal muscle myofibrils and myosin of some air-breathing teleosts. Ind. J. Biochem. Biophys. 43: 217-225. App elt D., Shen V., Franzini-Amstrong C. 1991. Quantitation of Ca +ATPase, feet and mitochondria in super fast muscle fibers from the toadfish, Opsanus tau . J. Muscle. Res. Cell. Motil. 12: 543-552. Arai K. 2002. Denaturation of muscular protein from marine animals and its control. Bull

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Classification of mountain soils in a subalpine zone – a case study from the Bieszczady Mountains (SE Poland)

., Świtoniak M., Uzarowicz Ł., Waroszewski J., 2019. Polish Soil Classification, 6th edition – principles, classification scheme and correlations. Soil Science Annual 70(2): 71–97. Kacprzak A., 2003. Pokrywy stokowe jako utwory macierzyste gleb Bieszczadów Zachodnich (Slope covers as the soil parent material in the western Bieszczady Mts). Roczniki Gleboznawcze – Soil Science Annual 54(3): 97–110. Kacprzak A., Drewnik M., Uzarowicz Ł., 2006. Rozwój i kierunki przemian węglanowych gleb rumoszowych na terenie Pienińskiego parku Narodowego (Development and

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Occurrence of the nan1 gene and adhesion of Pseudomonas aeruginosa isolates to human buccal epithelial cells

Microbiology and Infectious Diseases (P. Dellamonica, P. Schoch, S. R. Norrby, A. Voss, Eds.), 1-4 April, Nice, France, pp. 1164, Nice. Lanotte P., Mereghetti L., Lejeune B., Massicot P., Quentin R. 2003. Pseudomonas aeruginosa and cystic fibrosis : correlation between exoenzyme production and patients clinical state. Pediatr. Pulmonol. 36: 405-412. Lanotte P., Watt S., Mereghetti L., Dartiguelongue N., Rastegar-Lari A., Goudeau A., Quentin R. 2004. Genetic features of Pseudomonas aeruginosa isolates from cystic fibrosis patients

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