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    Wyświetlanie 1-11 z 11
    Tytuł:
    New station of Potamogeton x salicifolius Wolfg. in north-eastern Poland
    Autorzy:
    Pliszko, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/878578.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu
    Tematy:
    new station
    Potamogeton x salicifolius
    Potamogeton lucens
    Potamogeton perfoliatus
    Potamogetonaceae
    hybrid
    plant distribution
    Wigry National Park
    Polska
    Opis:
    Potamogeton ×salicifolius Wolfg., the hybrid between P. lucens L. and P. perfoliatus L., is recorded from north-eastern Poland for the fi rst time. The new station is located in the Wigry Lake (the Wigry National Park), within FB19 square unit of the ATPOL cartogram grid. The distribution is updated with one new population of vegetative ramets.
    Źródło:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2013, 17
    1896-1908
    Pojawia się w:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Distribution patterns of three Potamogeton species (P. crispus, P. nodosus and P. pectinatus) along velocity and base richness gradients from a lowland river
    Autorzy:
    Jakubas, E.
    Gabka, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/878331.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu
    Tematy:
    distribution pattern
    Potamogeton
    Potamogeton crispus
    Potamogeton nodosus
    Potamogeton pectinatus
    abundance
    hydrophyte
    gradient
    lowland river
    river
    environment
    Natura 2000 area
    Opis:
    This study presents distribution and abundance of three Potamogeton species, namely Potamogeton crispus, P. nodosus and P. pectinatus along environmental gradients in the lowland river Wełna (NW Poland). The relationships between 13 environmental factors and the pattern aquatic vegetation distribution along river were investigated. Among ecological factors rarely undertaken in aquatic ecology the light climate was concerned. It is postulated that the Potamogeton communities in the investigated river are strongly connected with water velocity, substrate of bottom and light conditions, in particular dissolved organic matter (DOM). Elodeo-Potametum crispi and algae communities with dominant species Hildenbrandia rivularis were well developed in the places shading by trees, with high velocity and fairly clean water, mostly with stony bottom. Potametum nodosi was noted in mean values of velocity and medium water quality with high content of organic matter in the bottom substrate. The last investigated community Sparganio-Potametum interrupti was found in poor water quality with the highest values of electric conductivity. The obtained results give a new approach of the ecology and abiotic typology of rivers with macrophytes including abundance of Potamogeton species (Nature 2000 habitat, code 3260 – “Water courses of plain to montane levels with the Ranunculion fl uitantis and Callitricho-Batrachion vegetation”).
    Źródło:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2013, 17
    1896-1908
    Pojawia się w:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Potamogeton pusillus agg. in Tajikistan (Middle Asia)
    Autorzy:
    Nobis, M.
    Nowak, A.
    Zalewska-Galosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/59299.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Potamogeton pusillus
    Potamogeton berchtoldii
    new species
    flora
    Tajikistan
    Middle Asia
    Asia
    Opis:
    The locality of Potamogeton berchtoldii Fieber, the new species to the flora of Tajikistan (Middle Asia), together with its ecological conditions are presented. Additionally, the list of herbarium specimens of P. pusillus L. s. stricto gathered in Tajikistan and few specimens of P. berchtoldii collected from the area of adjacent countries are also provided. Taxonomical position of the species within the Potamogeton pusillus aggregation, the main morphological features of both taxa and possibility of finding other localities are discussed.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2010, 79, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Habitat and growth conditions of the rare Potamogeton hybrids: P. x sparganifolius Least. ex. Fr. and P. x nericius Hagstr. in the Drawienski National Park
    Autorzy:
    Kraska, M
    Piotrowicz, R.
    Kujawa-Pawlaczyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/57495.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    habitat
    Polska
    growth condition
    Potamogeton
    pondweed
    Drawienski National Park
    hybrid
    Potamogeton x sparganifolius
    aquatic plant
    Drawa River
    aquatic ecosystem
    distribution
    Potamogeton x nericius
    Opis:
    The two pondweed taxa, new for the Polish flora, were found in the Drawa River in the Drawieński National Park (north-western Poland). Patches of P. x sparganiifolius started about 400 m below the mouth of the left-bank tributary, the Korytnica River, and ended about 5.5 km further downstream. The population colonized mainly a sandy substrate with varied particle size, moderately deep water, and moderate water flow rate. The patches were very dense and composed nearly exclusively of P. x sparganiifolius. They occurred mainly in the main current of the Drawa, and were up to several dozen metres long. By contrast, P. x nericius was found only in a small creek with stagnant water, at the edge of a patch dominated by P. x sparganiifolius, on a substrate composed of mud and sand, at the depth of 40-60 cm.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2004, 73, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Molecular evidence for the hybrid origin of Potamogeton x subrufus Hagstr. (Potamogetonaceae)
    Autorzy:
    Zalewska-Galosz, J.
    Kwolek, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/56768.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    molecular evidence
    hybrid
    Potamogeton x subrufus
    Potamogetonaceae
    aquatic plant
    cloning
    hybridization
    molecular identification
    Potamogeton
    sequencing
    taxonomy
    Opis:
    Potamogeton ×subrufus Hagstr. was described as a hybrid between P. lucens L. and P. nodosus Poir.; however, the taxon had not been widely accepted and regarded as conspecific with P. ×fluitans Roth, the hybrid between P. lucens and P. natans L. The origin of P. ×subrufus had been obscured till 2010, when, based on morpho-anatomical treatment, it was shown that P. ×subrufus displays several characters consistently different from those of P. ×fluitans. Here we report a successful amplification and sequencing of nuclear ribosomal ITS1 region from a 115 year-old herbarium specimen of P. ×subrufus, collected in locus classicus by J. Baagöe and preserved in the Herbarium of the Institute of Botany, Jagiellonian University (KRA). Based on the additive polymorphism pattern expressed in the ITS1 sequences of P. ×subrufus, we demonstrate that one of the parents of this hybrid was P. nodosus, as was claimed by Hagström.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2014, 83, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Potential of Potamogeton lucens macrophyte for generation of fuels and chemicals by pyrolysis
    Autorzy:
    Rather, Mushtaq Ahmad
    Khan, Noor Salam
    Gupta, Rajat
    Powiązania:
    https://bibliotekanauki.pl/articles/1193043.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Energy
    Fuel
    Kinetics
    Thermogravimetric analysis
    Pyrolysis
    Potamogeton lucens
    Macrophyte
    Opis:
    The study investigates pyrolysis potential of naturally dried macrophyte Potamogeton lucens for production of fuels and chemicals by thermogravimetric analysis (TGA). The kinetics of pyrolysis is studied under non-isothermal conditions in nitrogen atmosphere. The analysis of physiochemical properties viz. proximate analysis, ultimate analysis, heating value and fourier transform infrared spectroscopy (FTIR) of Potamogeton lucens was suggestive of upgradation of weed before it could serve as a fuel. Three different heating rates viz. 5, 15 and 20 °C/min were used in pyrolysis. Pyrolysis mainly took place in the temperature range of 177-377 °C. Activation energy (E) and pre-exponential factors (A) were calculated using the iso-conversional method. The results showed that the decomposition process exhibited two zones of constant apparent activation energies. The values ranged from 8.36 to 300.38 KJ/mol in the conversion range of 5-85%. The order of magnitudes of E and A in pyrolysis were conducive for the weed to serve as potential feedstock in generation of fuels and chemicals.
    Źródło:
    World Scientific News; 2016, 58; 34-47
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rare and threatened pondweed communities in anthropogenic water bodies of Opole Silesia [SW Poland]
    Autorzy:
    Nowak, A
    Nowak, S.
    Czerniawska-Kusza, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/56998.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    water body
    Opole Silesia region
    Polska
    anthropogenic reservoir
    pondweed community
    Potamogeton
    nature conservation
    Potamion
    Opis:
    The paper presents results of geobotanic studies conducted in anthropogenic water bodies like excavation ponds, fish culture ponds, other ponds, dam reservoirs, ditches, channels and recreational pools incl. watering places in Opole Silesia and surroundings in the years 2002-2005. The research focused on occurrence of threatened and rare pondweed communities. As the result of the investigations of several dozen of water bodies, 28 localities of rare pondweed communities were documented by 75 phytosociological relevés. Associations of Potametum trichoidis J. et R Tx. in R. Tx. 1965, Potametum praelongi Sauer 1937, P. alpini Br.-Bl. 1949, P. acutifolii Segal 1961, P. obtusifolii (Carst. 1954) Segal 1965 and P. perfoliati W. Koch 1926 em. Pass. 1964 were found as well as communities formed by Potamogeton berchtoldii, P. nodosus and P. pusillus. The study confirms that anthropogenic reservoirs could serve as last refugees for many threatened pondweed communities, which decline or even extinct in their natural habitats. The results indicate that man-made habitats could shift the range limits of threatened species and support their dispersal. The authors conclude that habitats strongly transformed by man are important factors in the natural syntaxonomical diversity protection and should not be omitted in strategies of nature conservation.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2007, 76, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Protocol for acclimatization of in vitro cultured Potamogeton praelongus - aspect of plantlet size and type of substrate
    Autorzy:
    Prausova, R.
    Kozelkova, Z.
    Safarova, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/57604.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    acclimatization
    in vitro culture
    Potamogeton praelongus
    plant tissue culture
    growth experiment
    plantlet size
    substrate type
    Opis:
    The aim of the experiment was to determine suitable substrate type and optimal plant size for transfer of plantlets from in vitro to ex vitro under experimental outdoor conditions. Tests focused on the effect of substrate type (muddy and sandy) and starting size of plantlets gained through in vitro seed germination (0-3, 3.1-5,5.1-6, 6.1-10 cm) on plant growth. Three parameters (fresh weight, length, and the number of leaves) were compared to evaluate growth. Basic water parameters in experimental water tanks were regularly measured (pH, temperature, electrical conductivity, shadow intensity) and controlled to reach similar conditions to those in the natural habitat of this species. Overwintering was studied in a cellar with newly defined size categories (<6, 6.1-8, 8.1-10, 10.1-12, 12.1-15 cm). Both substrate type and starting size of plantlets significantly impacted growth. Plantlets grew better in the muddy substrate while a 100% success rate of rooting was gained with a starting size of 6.1-10 cm in both substrates. The biggest increase in fresh weight was observed with a starting size of 3.1-5 cm and 5.1-6 cm in both substrates. The greatest increase in fresh weight was observed in plants with a starting size of 3.1-5 cm in the muddy substrate (more than 95% increase). The best overwintering results were gained in the 6.1-8 cm size category.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2015, 84, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Remarks on Potamogeton hybrids based on characters of P. x salicifolius Wolfg. from a new locality in Poland
    Autorzy:
    Zalewska-Galosz, J
    Powiązania:
    https://bibliotekanauki.pl/articles/58334.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    variability
    ecology
    new locality
    plant taxonomy
    Patamogeton
    Polska
    Potamogeton x salicifolius
    hybrid
    distribution
    taxonomy
    phytogeography
    Opis:
    Information on Potamogeton hybrids, their identification, taxonomy, ecology and distribution has not been sufficiently recognised yet. Based on characters of P. x salicifolius (= P. perfoliatus x P. lucens) from a new locality in Poland - the Gatno lake (the Kaszuby Lakeland in NW Poland) - general comments on Potamogeton hybrids identification are introduced. The description of P. x salicifolius morphology from the Gatno lake are presented. Analysis of quantitative morphological characters of these specimens provided new information on variability of this taxon. The distribution map of P. x salicifolius in Poland, the original draft of P. x salicifolius based on specimens from the Gatno lake and the table with comparison of P. x salicifolius and the characters of parental species are also provided.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2003, 72, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Manganese, zinc, cadmium and lead in plants of Dolgie Great Lake
    Mangan, cynk, kadm i ołów w roślinach jeziora Dołgie Wielkie
    Autorzy:
    Antonowicz, J.
    Trojanowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/85177.pdf
    Data publikacji:
    2003
    Wydawca:
    Akademia Pomorska w Słupsku
    Tematy:
    manganese
    zinc
    cadmium
    lead
    plant
    Myriophyllum spicatum
    Potamogeton lucens
    Acorus calamus
    Nuphar luteum
    Lake Dolgie Wielkie
    metal concentration
    Źródło:
    Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2002-2003, 07
    1643-0115
    Pojawia się w:
    Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Metals in chosen aquatic plants in a lowland dam reservoir
    Metale w roslinach wodnych ze zbiornika zaporowego na terenie nizinnym
    Autorzy:
    Senze, M
    Kowalska-Goralska, M.
    Pokorny, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/13669.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Tematy:
    dam reservoir
    aquatic plant
    river
    water
    drinking water
    flood prevention
    Slup Dam reservoir
    metal
    copper
    nickel
    cadmium
    lead
    zinc
    determination
    Ceratophyllum demersum
    Potamogeton crispus
    Phragmites communis
    Opis:
    The research involved Słup Dam Reservoir, which is used as a source of drinking water and for flood prevention. The research material was made up of aquatic plants and water collected in the littoral zone of the reservoir, in which copper, nickel, cadmium, lead and zinc contents were determined. Ceratophyllum demersum L. turned out to be the best accumulator of nickel, cadmium and zinc, Potamogeton crispus L. – copper, and Phragmites communis Trin – zinc. The presence of plants in the backwater area of the dam reservoir definitely improves water quality, not only thanks to their metal accumulation properties but because of their ability to act as a filter of substances carried in the water.
    Badania prowadzono na terenie Zbiornika Zaporowego Słup, który jest rezerwuarem wody pitnej oraz stanowi rezerwę przeciwpowodziową. Materiałem badawczym były rośliny wodne oraz woda pobierane w strefie litoralu zbiornika, w których określono zawartość miedzi, niklu, kadmu, ołowiu i cynku. Ceratophyllum demersum L. najsilniej spośród badanych roślin kumulował nikiel, kadm i cynk, Potamogeton crispus L. – miedź, a Phragmites communis Trin – ołów. Obecność roślin w rejonie tzw. cofki zbiornika zaporowego z pewnością wpływa na poprawę jakości wody nie tylko wskutek kumulacji metali, ale także działania filtracyjnego w stosunku do zawiesin wnoszonych z wodą dopływu.
    Źródło:
    Journal of Elementology; 2009, 14, 1; 147-155
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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