Wyniki wyszukiwania

1

Uwaga na ambrozje w importowanym materiale paszowym

100%

Karnkowski W.

Przegląd Zbożowo-Młynarski

|

2001

|

tom 45

|

nr 03

32-33

2

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An assessment of the Ambrosia L. pollen threat at a regional scale using the example of the town of Sosnowiec (Silesian Uplands, Poland)

100%

Chlopek K., Dabrowska-Zapart K., Tokarska-Guzik B.

Acta Agrobotanica

|

2011

|

tom 64

|

nr 2

The investigation of Ambrosia pollen counts in the air of Sosnowiec was carried out from 1998 to 2010 by means of the volumetric method. The pollen season which was determined by means of the 98% method started at the end of July and the beginning of August and lasted until the end of October. The highest Ambrosia pollen count was recorded in 1999 (222 grains x m-3) and the lowest in 2001 (18 grains x m-3). It was stated that the daily count of pollen grains depended on the wind direction and maximum air temperature. The strongest correlations were found with maximum temperature and with a wind direction from the south east. A high negative correlation coefficient was found between the frequency of inflows of air masses from the west and the annual total of pollen grains and the value of the maximum daily count. The closest sites of Ambrosia L. are at a distance of 25–40 kilometres from the sampling point. Significant correlations with the frequency of inflow of air masses can support the conclusion that Ambrosia pollen grains recorded in Sosnowiec were most probably carried not only from local sources but also, at least in part, from distant places.

3

Ecological features of Ambrosia artemisiifolia L. flowers and characteristics of Ambrosia L. pollen seasons in the condition of Lublin (Poland) in the years 2001-2008

100%

Weryszko-Chmielewska E., Piotrowska K.

Acta Agrobotanica

|

2008

|

tom 61

|

nr 2

In the study, the biology of fl owering of Ambrosia artemisiifolia L. was investigated and the pattern of the Ambrosia pollen seasons in Lublin in the years 2001-2008 was characterised. The structure of male and female A. artemisiifolia fl owers was observed in cultivated plants under controlled conditions in the 2000 vegetative season. The number of pollen grains produced by the stamen, fl ower, infl orescence and plant was determined. It was shown that in A. artemisiifolia fl owers nonfunctional pistils occurred with a reduced ovary, performing the role of a pollen presenter. The pistils found in female fl owers differed signifi cantly in their morphological features from the pistils in male fl owers. It was calculated that one stamrn produced an average of 3 375 pollen grains, whereas one fl ower 16 875. A plant which produces 20 racemes may release over 420 million pollen grains into the atmosphere. The Ambrosia pollen seasons in particular years had different patterns. In some years, the days of maximum concentration were in the second half of August, in other years in the fi rst half of September. Over the 8-year period, the maximum daily concentration had a mean value of 116 pollen grains in m3 (31-311). Annual total concentrations of Ambrosia pollen grains ranged between 194 and 1200 grains, and it was 523 grains on the average. The pollen seasons were characterised by the occurrence of several-day-long interruptions in the presence of airborne pollen in the atmosphere of Lublin, which may indicate the long-distance transport of Ambrosia pollen.

4

Relationship between airborne ragweed pollen concentration and the macrosynoptic weather types in Budapest, Hungary

100%

Feher Z., Jarai-Komlodi M.

Annals of Agricultural and Environmental Medicine

|

1996

|

tom 03

|

nr 2

5

Ragweed pollen in the air of Szczecin

100%

Puc M.

Annals of Agricultural and Environmental Medicine

|

2004

|

tom 11

|

nr 1

The aim of the study was to analyse the ragweed (Ambrosia) pollination in Szczecin (western Poland) in the years 2000-2002. Measurements were performed by the volumetric and gravimetric method. Pollen seasons were defined as the periods of 90% of the total catch. Ragweed pollen is known as a very potent aeroallergen. In recent years ragweed appeared in Europe in hitherto unknown localities, and the number of people allergic to the allergens of this plant has been gradually increasing. In the period of the study a strong tendency towards increasing ragweed pollen counts in the air of Szczecin was noted. Of the three years studied, the lowest concentration of ragweed pollen observed in 2000 equalled a few pollen grains in 1 m3 per 24 h. In 2001, the highest airborne concentration of 30 grains in 1 m3 per 24 h was noted at the end of August. The annual pollen count of ragweed in 2002 was 3 times higher than in 2001. The pollen season started in the second decade of August and lasted until the beginning of September. The highest airborne concentration of 98 grains in 1 m3 per 24 h was noted at the beginning of September on a sunny day with strong wind. The pollen count of ragweed was found to depend on the weather conditions, especially on wind speed and relative humidity, diversity of local flora and long distance transportation.

6

Pylek z dalekiego transportu w aeroplanktonie Poznania w latach 1995-1997 [wybrane taksony alergogenne]

80%

Stach A., Silny W.

Bibliotheca Fragmenta Agronomica

|

1999

|

tom 06

209-216

7

Uwaga na ambrozje w importowanym materiale paszowym

80%

Karnkowski W.

Pasze Przemysłowe

|

1998

|

tom 07

|

nr 04

27-28

8

Pylek ambrozji [Ambrosia] i iwy [Iva] w powietrzu Lublina i Lwowa

80%

Weryszko-Chmielewska E., Potrowska K., Czerneckyj M.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EEE: Horticultura

|

2003

|

tom 13

341-348

9

Aerophytologie comparee de deux milieux urbains de l'hemisphere nord [Montreal et banlieue parisienne]

80%

Boussioud-Corbieres F.

Fragmenta Floristica et Geobotanica

|

1996

|

tom 41

|

nr 2

10

Airborne grass and ragweed pollen in the Southern Panonnian Valley - consideration of rural and urban environment

80%

Sikoparija B., Radisic P., Pejak T., Simic S.

Annals of Agricultural and Environmental Medicine

|

2006

|

tom 13

|

nr 2

The aims of this study were to describe and compare the characteristics of grass and ragweed airborne pollen in rural and urban areas in the southern Panonnian Valley. Airborne pollen data were collected by using Hirst type volumetric samplers simultaneously in rural and urban localities. If rural and urban environment are considered, both grass and ragweed daily pollen concentrations showed a significant degree of association. Observed parameters (pollen index, maximum daily concentration, number of days during which the pollen is recorded in the air and start day of main pollen season), showed year-to-year variations for both grass and ragweed aeropollen. Average values of these parameters were higher in the rural environment, but the difference was statistically significant only for grass pollen index. Such a low difference indicates the possibility for conducting dose response clinical trials based on data obtained from one sampling station. The least year-to-year variations as well as the least difference between rural and urban environment, have been observed in the case of start date of the MPS. Such a situation suggests the possibility for using data obtained in one type of environment for the development of long-term forecast models for an entire region.

11

Zagrozenie pylkiem Ambrosia w Europie

70%

Stepalska D.

Wiadomości Botaniczne

|

1999

|

tom 43

|

nr 3-4

80-84

12

Cudowne rośliny

61%

M.K.

Przegląd Techniczny

|

1993

|

nr 13

Ograniczanie wyników

Uwaga na ambrozje w importowanym materiale paszowym

An assessment of the Ambrosia L. pollen threat at a regional scale using the example of the town of Sosnowiec (Silesian Uplands, Poland)

Ecological features of Ambrosia artemisiifolia L. flowers and characteristics of Ambrosia L. pollen seasons in the condition of Lublin (Poland) in the years 2001-2008

Relationship between airborne ragweed pollen concentration and the macrosynoptic weather types in Budapest, Hungary

Ragweed pollen in the air of Szczecin

Pylek z dalekiego transportu w aeroplanktonie Poznania w latach 1995-1997 [wybrane taksony alergogenne]

Uwaga na ambrozje w importowanym materiale paszowym

Pylek ambrozji [Ambrosia] i iwy [Iva] w powietrzu Lublina i Lwowa

Aerophytologie comparee de deux milieux urbains de l'hemisphere nord [Montreal et banlieue parisienne]

Airborne grass and ragweed pollen in the Southern Panonnian Valley - consideration of rural and urban environment

Zagrozenie pylkiem Ambrosia w Europie

Cudowne rośliny