Wyniki wyszukiwania

1

Kwiatostany olszy zrodlem pozytku pylkowego

100%

Weryszko-Chmielewska E., Piotrowska K.

Pszczelarstwo

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2000

|

tom 51

|

nr 02

4-5

2

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Prediction of airborne Alnus pollen concentration by using ARIMA models

100%

Rodriguez-Rajo F. J., Valencia-Barrera R. M., Vega-Maray A. M., Suarez F. J., Fernandez-Gonzales D., Jato V.

Annals of Agricultural and Environmental Medicine

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2006

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tom 13

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nr 1

To take preventative measures to protect allergic people from the severity of the pollen season, one of aerobiology’s objectives is to develop statistical models enabling the short- and long-term prediction of atmospheric pollen concentrations. During recent years some attempts have been made to apply Time Series analysis, frequently used in biomedical studies and atmospheric contamination to pollen series. The aim of this study is to understand the behaviour of atmospheric alder pollen concentrations in northwest Spain in order to develop predictive models of pollen concentrations by using Time Series analysis. The prediction line proposed for Oviedo and Ponferrada are similar (Arima 2,0,1) while in Vigo a more accurate model founded by Arima (3,0,1) and in León (1,0,1) was used. The results suggest that Ponferrada and Oviedo are the cities in northwest Spain where Alnus pollen allergic individuals should to take preventive measures to protect themselves from the severity of the pollen season. Alnus pollen values higher than 30 grains/m3, a quantity considered sufficient to trigger severe allergy symptoms of other trees of the Betulaceae family, could be reached during 25 days in some years. The predicted lines conformed with the observed values overall in the case of León and Ponferrada. Time Series regression models are especially suitable in allergology for evaluating short-term effects of time-varying pollen appearance in the atmosphere.

3

Dlaczego zamieraja olsze

84%

Zakrzewska W., Oszako I.

Głos Lasu

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2005

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nr 03

18-20

4

Types of hazel (Corylus spp.) and alder (Alnus spp.) pollen seasons in Sosnowiec 1997 - 2007 (Poland)

84%

Dabrowska-Zapart K.

Acta Agrobotanica

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2010

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tom 63

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nr 2

This paper investigates pollen seasons for Corylus spp. and Alnus spp. for the years 1997-2007 in Sosnowiec, southern Poland. The research was conducted by means of the volumetric method using a Burkard-type spore trap. The duration of pollen seasons was determined by means of the 98% method. The aim of this study was to distinguish the types of the course of hazel and alder pollen seasons using cluster analysis, including non-hierarchical clustering of multi-feature objects – k-means clustering. The pollen seasons were divided into five types because of considerable variations from one year to another. For both taxons one dominant type was found, which was characterized by a very long period of compact pollen release with low values of the pollen count and by the occurrence of several maximums divided by periods of a lower pollen count. This work contains only a preliminary analysis on the types of pollen seasons because of relatively short data set. Future research on a larger series of measurements should be proved.

5

Drzewo roku 1999 - Wiaz, cz.4. Rozmnazanie wegetatywne

84%

Czekalski M.

Szkółkarstwo

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1999

|

nr 4

34-35

6

Nowe stanowiska oraz nowy żywiciel Melampsoridium hiratsukanum (Fungi, Uredinales) w Polsce

84%

Piatek M., Ronikier M., Miskiewicz A.

Fragmenta Floristica et Geobotanica Polonica

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2001

|

tom 08

245-249

New records and new host for Melampsoridium hiratsukanum (Fungi, Uredinales) in Poland. Fragmenta Floristica et Geobotanica Polonica 8: 245–249. Kraków. PL ISSN 1640 629X. ABSTRACT: Melampsoridium hiratsukanum S. Ito has been recorded in some new localities in Poland. To the previously known two Polish sites the further four are added in the paper, and new host in the Polish population (Alnus glutinosa) is reported. The fungus seems to be a newcomer in Poland and it spreads rapidly in some regions of the country.

7

Lasy olszowe i walory krajobrazowe doliny rzeki Pliszki

84%

Krol S., Mielcarski C., Rudnicka-Sterna W., Stefanek W.

Przegląd Przyrodniczy

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1993

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tom 04

|

nr 3

103-110

8

Test tube pollination of stigmas, ovaries and ovules of Salix viminalis with pollen grains of Alnus, Betula and Corylus

84%

Piosik L., Cieslak A., Zenkteler M., Zenkteler E.

Acta Biologica Cracoviensia. Series Botanica. Supplement

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2008

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tom 50

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nr 1

9

Annual pollen sums of Alnus in Lublin and Roztocze in the years 2001-2007 against selected meteorological parameters

84%

Kaszewski B. M., Pidek I. A., Piotrowska K., Weryszko-Chmielewska E.

Acta Agrobotanica

|

2008

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tom 61

|

nr 2

Alder (Alnus Mill.), as an anemophilous species, produces large quantities of easily dispersed pollen. Annual pollen sums recorded in south-eastern Poland (by the volumetric method – Lanzoni trap) and in the area of the village of Guciów in the Central Roztocze region (pollen deposition in Tauber traps) were compared. The height at which the respective trap sites were located as well as local and regional vegetation and the distance from the nearest alder communities differ in both cases, likewise, the climate of these two regions differ. The analysed pollen data series cover the years 1998-2007 in Roztocze and 2001-2007 in Lublin. Large differences have been noted in Alnus pollen deposition values between particular years. Among them, there were observed years of very high annual sums (2001, 2003, 2006), as well as years of very low pollen deposition values in both regions (2002, 2005, 2007). In the period in question, the mean value of annual Alnus pollen count for Lublin was 5372 alder pollen grains in m3 of air, and in Roztocze 1647 grains per cm2 of area. During the seven-year period of monitoring (2001-2007), very similar trends were noted with respect to airborne alder pollen concentrations at both trap sites. Pollen data have been analysed against meteorological factors affecting alder pollen production and deposition. These are total precipitation and mean monthly air temperature in June, July and August in the year preceding pollen emission and the same weather elements in January and February in the year of pollen emission. In Roztocze a statistically signifi cant negative correlation has been found between Alnus pollen annual sums and total precipitation in August in the year preceding alder pollen emission and in February in the year of pollen emission. In both regions, the Spearman’s correlation coeffi cient does not show any statistically signifi cant values when comparing annual Alnus pollen sums with mean monthly temperatures of both January and February and summer months in the year preceding alder pollen emission.

10

Nine-year record of Alnus pollen deposition in the Roztocze Region [SE Poland] with relation to vegetation data

84%

Pidek I. A.

Acta Agrobotanica

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2007

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tom 60

|

nr 2

Pollen deposition of alder has been measured at ground level by means of nine modified Tauber traps in different plant communities according to rules of the Pollen Monitoring Programme (http://pmp.oulu.fi). The series of data covers the period 1998-2006. The area under investigation is situated in the Roztocze (surroundings of the Guciów village) within the protective zone of the Roztocze National Park. During nine years of monitoring, significant variations were observed between single years of deposition. The occurrence of peak years (1998, 2001, 2003 and 2006) connected with higher production of Alnus pollen was observed at many pollen monitoring sites, but its relationship with different proportions of alder within the surrounding vegetation seems rather weak. The average value of annual pollen deposition of Alnus for the whole region was calculated at ca. 1370 grains · cm⁻². At the sites situated within the open landscape, pollen influx values ranged from 442 (in 2005) to 6894 (in 1998). It seems that other factors than the proportion of alder within the vegetation control the deposition of Alnus pollen. Long-distance transport and meteorological factors such as wind speed and direction should be taken into account in future studies.

11

Comparison of Alnus, Corylus and Betula pollen counts in Lublin [Poland] and Skien [Norway]

84%

Piotrowska K.

Annals of Agricultural and Environmental Medicine

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2004

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tom 11

|

nr 2

Symptoms of pollen allergy in springtime in Middle and Northern Europe are mainly caused by pollen grains of birch, hazel and alder. The aim of the present study was the pollen fall comparison of the mentioned taxa in Lublin (Poland) and Skien (Norway). These sites are located approximately 1,200 km away apart by air. The pollen monitoring was carried out by gravimetric method in 1999-2000. The start and end of pollen seasons were defined by the 90% method. The beginning of pollen seasons for Corylus and Betula were observed 1-3 weeks earlier in Lublin than in Skien, but pollen grains of Alnus appeared simultaneously in both towns. In 1999, annual totals of Alnus, Corylus and Betula pollen grains were considerably less numerous in Skien than in Lublin. No important differences were observed among the pollen fall amounts of the mentioned taxa in 2000. The maximum values of pollen grains were defined in different terms. The results of investigations differed as regards the years compared as well as the sites.

12

Analysis of Alnus spp. pollen seasons in Lublin and Warszawa [Poland], 2001-2007

84%

Weryszko-Chmielewska E., Rapiejko P.

Acta Agrobotanica

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2007

|

tom 60

|

nr 2

The course of Alnus spp. pollen seasons was compared in two cities, Lublin and Warsaw, located at a small distance from each other but included in different climatic regions of Poland. The studies were conducted using the volumetric method. It was shown that Alnus pollen seasons started in Warsaw earlier and were much shorter than in Lublin. The span between the start dates of pollen seasons was similar and it was 53-54 days. Peak days occurred in both cities most often in the second decade of March, but in Warsaw they were recorded several days earlier. Maximum concentrations reached higher values in Lublin, whereas annual totals were higher in Warsaw. The number of days with the concentration > 50 pollen grains × m⁻³ per 24 hours was 5-27 days for Warsaw and 10-19 days for Lublin over 7 years of study.

13

Regional importance of Alnus pollen as an aeroallergen: a comparative study of Alnus pollen counts from Worcester [UK] and Poznan [Poland]

84%

Smith M., Emberlin J., Stach A., Czarnecka-Operacz M., Jenerowicz D., Silny W.

Annals of Agricultural and Environmental Medicine

|

2007

|

tom 14

|

nr 1

Daily average Alnus pollen counts (1996-2005) from Worcester (UK) and Poznań (Poland) were examined with the aim of assessing the regional importance of Alnus pollen as an aeroallergen. The average number of Alnus pollen grains recorded annually at Poznań was more than 2.5 times that of Worcester. Furthermore, daily average Alnus pollen counts exceeded the thresholds of 100, 500 and 1,000 grains/m3 more times at Poznań than Worcester. Skin prick test results (1996-2005) and allergen-specifi c IgE (asIgE) measurements using the CAP (Pharmacia) system (2002-2005), were supplied by the Allergic Diseases Diagnostic Centre in Poznań. The annual number of positive skin prick tests to Alnus pollen allergens was signifi cantly related (p<0.05) to seasonal variations in the magnitude of the Alnus pollen catch recorded at Poznań (r=0.70). The symptoms of patients with positive skin prick tests to Alnus pollen allergens were: 51% pollinosis, 43% atopic dermatitis, 4% asthma, 1% chronic urticaria and 1% eczema. On a scale of 0-6, 20.5% of patients examined for serum asIgE in relation to Alnus pollen allergens had asIgE measurements in classes 5 and 6. Alnus pollen is generally considered to be mildly allergenic. However, the amount of Alnus pollen released into the atmosphere in places such as Poznań may increase its impact on the population and make it one of the more important aeroallergens present.

14

Environmental factors affecting the start of pollen season and concentrations of airborne Alnus pollen in two localities of Galicia [NW Spain]

84%

Rodriguez-Rajo F. J., Dopazo A., Jato V.

Annals of Agricultural and Environmental Medicine

|

2004

|

tom 11

|

nr 1

Alnus pollen is an early component of the annual atmospheric aerosol of the north-west regions of Spain, which causes the first occurrence of allergic symptoms. Seasonal and intra-daily variation of Alnus pollination, and the influence that main meteorological parameters exert, was studied in this paper. Monitoring was carried out from 1993-2002, by using two Lanzoni VPPS 2000 volumetric samplers. Once the atmospheric behaviour of this pollen had been identified, the final objective was to elaborate predictive models to determine the onset of the Alnus pollen season and its concentrations during the pollination period in two localities of north-west Spain (Santiago and Ourense). Winter chilling required to overcome the bud-dormancy period was similar in both cities, with around 800 Chilling Hours (C.H.) and 5.5oC threshold temperature. Calculation of heat requirement for bud growth was carried out with maximum temperature, with around 50 Growth Degree Days (G.D.D.oC) needed, with 6oC threshold temperature. Data from 2002 were used in order to determine the real validity of the models. This year was not taken into account to establish the aforementioned models. The variation between the predicted start of the pollen season and the observed season was smallest in Ourense. Verifying the proposed models for predicting daily mean concentrations of Alnus pollen during the pollen season shows that the predicted curves fits the observed variations of daily mean concentrations.

15

Pylek wybranych taksonow drzew w powietrzu Szczecina w latach 2000-2002

67%

Puc M.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EEE: Horticultura

|

2003

|

tom 13

323-331

16

Factors involved in the phenological mechanism of Alnus flowering in Central Europe

67%

Rodriguez-Rajo F. J., Grewling L., Stach A., Smith M.

Annals of Agricultural and Environmental Medicine

|

2009

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tom 16

|

nr 2

277-284

17

Wplyw warunkow pogodowych na przebieg sezonow pylkowych wybranych taksonow alergogennych w Poznaniu w 2000 roku

67%

Stach A., Czarnecka-Operacz M., Nowaczyk B., Silny W.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EEE: Horticultura

|

2002

|

tom 10

139-146

18

Opad pylkowy wybranych taksonow roslin w dwoch dzielnicach Lublina w latach 2001-2002

67%

Dabrowska A.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EEE: Horticultura

|

2003

|

tom 12

87-92

19

Drzewo roku 2003 - Olsza.Cz.1. Gatunki rodzime

67%

Czekalski M.

Szkółkarstwo

|

2003

|

nr 1

7-9

20

Phytophthora alni atakuje rodzime olsze

67%

Oszako T., Zakrzewska W.

Aura

|

2006

|

nr 06

17-18

Ograniczanie wyników

Kwiatostany olszy zrodlem pozytku pylkowego

Prediction of airborne Alnus pollen concentration by using ARIMA models

Dlaczego zamieraja olsze

Types of hazel (Corylus spp.) and alder (Alnus spp.) pollen seasons in Sosnowiec 1997 - 2007 (Poland)

Drzewo roku 1999 - Wiaz, cz.4. Rozmnazanie wegetatywne

Nowe stanowiska oraz nowy żywiciel Melampsoridium hiratsukanum (Fungi, Uredinales) w Polsce

Lasy olszowe i walory krajobrazowe doliny rzeki Pliszki

Test tube pollination of stigmas, ovaries and ovules of Salix viminalis with pollen grains of Alnus, Betula and Corylus

Annual pollen sums of Alnus in Lublin and Roztocze in the years 2001-2007 against selected meteorological parameters

Nine-year record of Alnus pollen deposition in the Roztocze Region [SE Poland] with relation to vegetation data

Comparison of Alnus, Corylus and Betula pollen counts in Lublin [Poland] and Skien [Norway]

Analysis of Alnus spp. pollen seasons in Lublin and Warszawa [Poland], 2001-2007

Regional importance of Alnus pollen as an aeroallergen: a comparative study of Alnus pollen counts from Worcester [UK] and Poznan [Poland]

Environmental factors affecting the start of pollen season and concentrations of airborne Alnus pollen in two localities of Galicia [NW Spain]

Pylek wybranych taksonow drzew w powietrzu Szczecina w latach 2000-2002

Factors involved in the phenological mechanism of Alnus flowering in Central Europe

Wplyw warunkow pogodowych na przebieg sezonow pylkowych wybranych taksonow alergogennych w Poznaniu w 2000 roku

Opad pylkowy wybranych taksonow roslin w dwoch dzielnicach Lublina w latach 2001-2002

Drzewo roku 2003 - Olsza.Cz.1. Gatunki rodzime

Phytophthora alni atakuje rodzime olsze