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Wyszukujesz frazę "street tree" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Evaluation of seed viability of Callery pear (Pyrus calleryana) in Poznan
Autorzy:
Bednorz, L.
Llaka, A.
Powiązania:
https://bibliotekanauki.pl/articles/790617.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
seed viability
Callery pear
Pyrus calleryana
Rosaceae
street tree
Poznan city
Opis:
Seeds of Pyrus calleryana were sampled from 11 stations located in Poznań green areas. Three of them represented cultivar ‘Capital’, whereas the remaining eight represented cultivar ‘Chanticleer’. The viability of seeds was qualified by means of tetrazolium test. The results of staining test showed that viability of Callery pear seeds was high and ranged from 90 to 100%.
Źródło:
Steciana; 2017, 21, 1
1689-653X
Pojawia się w:
Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of street conditions, including saline aerosol, on growth of the Small-leaved limes
Wpływ warunków przyulicznych, w tym aerozolu solnego, na wzrost lip drobnolistnych
Autorzy:
Borowski, J.
Pstragowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/888469.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Dendrologiczne
Tematy:
Small-leaved lime
Tilia cordata
environment pollution
lime
plant growth
saline aerosol
salinity stress
street condition
street habitat
street tree
tree size
urban tree
Opis:
There is increasing number of trees dying in large urban agglomerations. The problem is mostly pronounced in the case of street trees. In Polish cities, apart of pollutions generated by traffic, an important factor that causes death of trees is high salt concentration as a result of winter salt application for de-icing of streets. The aim of the study was to assess the growth of limes (Tilia cordata) planted along highly trafficked Warsaw street and exposed, among others, to salt in a form of saline aerosol. The assessment of shoot length, tree height and crown volume, based on the photographic method of the three increment assessments, showed very restrained growth of the studied limes. In the years 2006-2008 the trees performed so poorly as in similar period of 2003-2005 and grew worse than limes form natural habitats. In 2009 we even observed decrease in size of street trees as compared to 2008 which suggests both very bad condition of street habitats and the studied trees. Salt concentration measured on the surface of tree buds and shoots (EC) was higher in street trees than in trees from natural habitats, which indicates that saline aerosol is the source of sodium chloride. We observed highly diversified reactions of individual trees to the whole complex of street conditions. It is therefore recommended to select for propagation individuals from among most tolerant and vigorously growing plants (genotypes) to be used in street planting.
Źródło:
Rocznik Polskiego Towarzystwa Dendrologicznego; 2010, 58
2080-4164
2300-8326
Pojawia się w:
Rocznik Polskiego Towarzystwa Dendrologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of salinity stress on growth and macroelements uptake of four tree species
Autorzy:
Marosz, A
Nowak, J.S.
Powiązania:
https://bibliotekanauki.pl/articles/41524.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
tree species
salinity resistance
salinity stress
nutrient uptake
ornamental tree
growth
macroelement uptake
decorative value
road
street
Polska
Opis:
Woody plants grown near the roads are force-fed by salt and this has negative effect on their growth and decorative value. The aim of the presented study was to investigate the effects of salinity on growth and nutrient composition of four trees species often planted along the roads and streets in Poland. Two years old seedlings (bare root) of four tree species: Acer negundo, A. platanoides, Quercus robur and Tilia cordata were potted and grown outside under four soil salinity levels maintained by drenching plants with tap water containing 0.25, 0.5, 1.5, and 3.3g NaCl/L H2O. Plant height, soil samples for electrical conductivity (EC) and pH determination as well as leaf samples for macroelements (N, P, K, Ca, Mg) content evaluation were collected after each growing season of two years of experiment. Electrical conductivity of the growing medium varied insignificantly between species, but salt concentration in the growing medium was distinctly higher in the upper than in the bottom part. Soil salinity had strong but variable effect on plant growth during the experiment. Only Acer negundo growth was not affected even by the highest concentration of NaCl solution. With increasing salinity of growing medium more Na+ was taken by all species but the biggest amount of sodium ions was accumulated in the leaves of Tilia cordata, while the lowest in Acer negundo. Than potassium ions content decreased with increasing medium salinity only in the leaves of Quercus robur and Tilia cordata. In the leaves of Acer platanoides and Tilia cordata calcium concentration was decreased at increased salinity, in two other tested species amount of Ca2+ in the leaves was elevated. The main conclusion that can be drown is that Acer negundo is highly tolerant to salinity stress while Acer platanoides was the most sensitive among tested species.
Źródło:
Dendrobiology; 2008, 59; 23-29
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The occurrence of Panaphis juglandis [Goetze] and Chromaphis juglandicola [Kalt.] on walnut under the urban conditions of Lublin
Występowanie Panaphis juglandis (Goetze) i Chromaphis juglandicola (Kalt.) na orzechu włoskim w warunkach miejskich Lublina
Autorzy:
Jaśkiewicz, B.
Kmieć, K.
Powiązania:
https://bibliotekanauki.pl/articles/11541660.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
urban condition
Juglans regia
walnut
Lublin city
weather
tree
park
street
Chromaphis juglandicola
population dynamics
Panaphis juglandis
aphid
occurrence
Opis:
In the years 2003–2005 studies were conducted in the area of Lublin the aim of which was to study the population dynamics of aphids colonizing the trees of Juglans regia L. in the street and the park sites against the course of weather conditions. The weather in spring probably had no effect on the date of hatching of the larva of fundatrix, which was usually observed in the third 10-days’ period of May. On the other hand, the dry period, heat waves (above 30°C) and stormy rainfalls affected the break in the aphid population observed in July and August. The maximum population of P. juglandis was found in the second 10-days’ period of June, while that of Ch. juglandicola – at he turn of June and July. The highest number of P. juglandis was observed in 2004, while that of Ch. juglandicola in 2003. In 2003 the dominating species in both sites was Ch. juglandicola, while in the other years of studies it was P. juglandis.
W latach 2003–2005 na terenie Lublina prowadzono badania, których celem było prześledzenie dynamiki liczebności mszyc zasiedlających drzewa Juglans regia L. na stanowisku przyulicznym i parkowym na tle przebiegu warunków pogodowych. Układ pogody wiosną prawdopodobnie nie miał wpływu na termin wylęgu larw założycielek rodów, który notowano zazwyczaj w III dekadzie maja. W istotny sposób natomiast na załamywanie się liczebności mszyc, obserwowanej w lipcu i sierpniu, wpływała susza, upały (powyżej 30°C) oraz opady typu burzowego. Maksimum liczebności P. juglandis notowano w II dekadzie czerwca, natomiast Ch. juglandicola na przełomie czerwca i lipca. Najwyższą liczebność P. juglandis odnotowano w roku 2004, a Ch. juglandicola w roku 2003. Gatunkiem dominującym na obydwu stanowiskach w roku 2003 był Ch. juglandicola, natomiast w pozostałych latach badań P. juglandis.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2007, 06, 3; 15-26
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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