Wyniki wyszukiwania - AGRO

1

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Birch (Betula L.) pollen seasons in Cracow in 1991-2008 in relation to meteorological conditions

100%

Myszkowska D., Piotrowicz K.

Acta Agrobotanica

|

2009

|

tom 62

|

nr 2

The parameters of the birch pollen seasons in Cracow in 1991-2008 were analysed in relation to some meteorological elements and synoptic situations (circulation types, air masses and atmospheric fronts). Two types of the pollen seasons were distinguished – highly dense and less dense. The first type of the season started on the 15th of April (on average), lasted 11-20 days and the maximum daily concentration exceeded 500 pgm-3. The less dense type started generally earlier (the first decade of April), lasted more than 20 days and the peak days were unstable. In this type of the pollen season, two peak days were often observed. The relationship between the type of the season and the meteorological conditions before the season was pointed out. Additionally, the influence of circulation types, types of air masses and atmospheric fronts over south-eastern Poland on a given day on the number of days with a daily concentration > 80 pgm-3 was analysed. The relationship between the pollen season type and meteorological conditions before the season was found, among others, the influence of types of synoptic situations and air masses on the number of days with a concentration of over 80 pgm-3 was established.

2

Brzoza w lasach Finlandii

84%

Kowalczyk J., Wojda T.

Las Polski

|

2005

|

nr 03

14-15

3

Stale krzywe wysokosci dla brzozy

84%

Zasada M.

Sylwan

|

2000

|

tom 144

|

nr 06

27-31

4

Fluctuation of birch (Betula L.) pollen seasons in Poland

84%

Puc M., Wolski T., Camacho I. C., Myszkowska D., Kasprzyk I., Grewling L., Nowak M., Weryszko-Chmielewska E., Piotrowska-Weryszko K., Chlopek K., Dabrowska-Zapart K., Majkowska-Wojciechowska B., Balwierz Z., Malkiewicz M., Grinn-Gofron A., Stacewicz A., Kruczek A., Borycka K.

Acta Agrobotanica

|

2015

|

tom 68

|

nr 4

Birch pollen grains are one of the most important groups of atmospheric biological particles that induce allergic processes. The fluctuation pattern of birch pollen seasons in selected cities of Poland is presented. Measurements were performed by the volumetric method (Burkard and Lanzoni 2000 pollen samplers). The distributions of the data were not normal (Shapiro–Wilk test) and statistical error risk was estimated at a significance level of α = 0.05. Pollen season was defined as the period in which 95% of the annual total catch occurred. The linear trend for the selected features of the pollen season, skewness, kurtosis and coefficient of variation (V%) were also analyzed. During the 12–14 years of study, the beginnings of birch pollen seasons were observed 7–14 days earlier, the ends were noted 5–10 days earlier, and the days with maximum values occurred 7–14 days earlier compared to the long-term data. The left-skewed distribution of the pollen season starts in most sampling sites confirms the short-lasting occurrence of pollen in the air. The threat of birch pollen allergens was high during the pollen seasons. If vegetation is highly diverse, flowering and pollen release are extended in time, spread over different weeks and occur at different times of the day. Flowering time and pollen release are affected by insolation, convection currents, wind, and turbulence. Therefore, pollen seasons are characterized by great inter-annual variability.

5

Mikrowegetatywne rozmnazanie szansa dla plantacji uprawy drzew szybko rosnacych

84%

Szczygiel K.

Postępy Techniki w Leśnictwie

|

2006

|

tom 97

18-22

6

Zawartosc pylku brzozy [Betula] w atmosferze Lublina w latach 1996-1999

84%

Weryszko-Chmielewska E.

Bibliotheca Fragmenta Agronomica

|

1999

|

tom 06

217-222

7

Ocena zgodnosci rozkladow piersnic drzew drzewostanow brzozowych z niektorymi rozkladami teoretycznymi

84%

Zasada M.

Sylwan

|

2000

|

tom 144

|

nr 05

43-48

8

Pollen monitoring in Perm Krai (Russia) - experience of 6 years

84%

Novoselova L. V., Minaeva N.

Acta Agrobotanica

|

2015

|

tom 68

|

nr 4

Medical observations show that the level of pollinosis increased by 34.6% in central Russia in 2005–2012. This paper presents the results of 6-year pollen monitoring carried out with a Hirst-type pollen trap (Burkard Manufacturing Co. Ltd) between 2010 and 2015 in Perm Krai (Russia). Usually, sensitization of allergic people occurs in three periods: (i) spring due to the pollen of Betula, (ii) early summer due to Poaceae pollen, and (iii) late summer as a result of Artemisia pollen. Betula pollen, which is dominant (26.9–65.2% of total pollen counts), is recorded in large numbers in the period of flowering and occasionally during the entire period of pollination. Among herbaceous plants, the pollen of Poaceae, Urticaceae and Artemisia dominates in airborne pollen. The concentration of allergenic pollen grains in the air of Perm Krai is lower than in other European geographical regions.

9

Brzoza w uprawie plantacyjnej na terenie Leśnego Zakładu Doświadczalnego w Rogowie

84%

Borecki T., Nowakowska J.

Sylwan

|

1995

|

tom 139

|

nr 12

85-90

10

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

|

2008

|

tom 50

|

nr 1

11

Field-sampling methods for investigating ground-bryophyte populations in forest vegetation

84%

Jiang Y.-B., Liu X.-H., Tian R.-X., Shao X.-M.

Polish Journal of Ecology

|

2011

|

tom 59

|

nr 2

To determine the optimum plot size for bryophyte-biocoenosis investigations and identify the sampling methods that can provide sufficient and representative data for bryophyte diversity, we explored two sampling methods and investigated the species composition and their coverage in three sites located within the subtropical- temperate zone in China: mixed coniferous and deciduous broadleaved forest with species of Quercus, Betula, Pinus, Abies (Guanyinshan Nature Reserve), mixed evergreen and deciduous broadleaved forest, broadleaved forest with species of Phoebe, Castanopsis, Lithocarpus, Acer, Tilia, Dacidia, Abies (Mabian Dafengding Nature Reserve) and temperate deciduous broadleaved forest with species of Quercus, Betula, Populus (Dongling Mountains). Two sampling methods are applied: the systematic-sampling method based on nested quadrates of five different sizes (10 × 10 cm, 25 × 25 cm, 50 × 50 cm, 1 × 1 m, and 2 × 2 m) in each 2 × 2 m grid within a 10 × 10 m plot (total 25 grids) and the microcoenose-sampling method (sampling with the minimum area quadrate at the center of the largest fragment in each of the 25 grids). The minimum area of sampling was determined based on the similarity-area curve, the coverage-area curve, and the importance- value-area curve through the systematicsampling. The appropriate sampling method and quadrate number were determined by analyzing the species diversity and evenness. We compared two sampling methods by assessing the species number at two different sites. Both the similarity- area curve and importance-value-area curve showed that the turnover point of sampling size occurred at 50 × 50 cm where the similarity and importance-value were closer to the actual. We concluded that a quadrate of 50 × 50 cm could be used as the minimum area of sampling. However, the systematic-sampling method was not suitable for analyzing the diversity of bryophytes. A viable alternative is the microcoenose-sampling method which allows to obtain sufficient information in terms of species richness and their distribution.

12

Betula and Populus pollen counts and meteorological conditions in Szczecin, Poland

84%

Puc M., Wolski T.

Annals of Agricultural and Environmental Medicine

|

2002

|

tom 09

|

nr 1

13

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

84%

Piotrowska K.

Annals of Agricultural and Environmental Medicine

|

2004

|

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.

14

Use of phenological and pollen-production data for interpreting atmospheric birch pollen curves

84%

Jato V., Rodriguez-Rajo F. J., Aira M. J.

Annals of Agricultural and Environmental Medicine

|

2007

|

tom 14

|

nr 2

Although aerobiological data are frequently used as a fl owering sign in phenological research, airborne pollen counts are infl uenced by a number of factors affecting pollen curves. A study was made about the reproductive biology of birch and environmental factors infl uencing its pollen release and transport, in order to achieve a reliable interpretation of Betula pollen curves. Aerobiological data were recorded in 2002 and 2003 at two sites in NW Spain and phenological observations were carried out on 20 trees from four Betula populations (three Betula alba L. and one B. pendula Roth.). Pollen production was calculated for six Betula alba trees. Chilling and heat requirements for triggering development were calculated. Due to differences in the geographical location, budbreak and fl owering started fi rst in Betula pendula. The fl owering period lasted from 8-13 days. Reduced pollen output per anther and catkin in individual trees in 2003 prompted a marked decline in overall pollen production. Major differences observed in birch pollen curves were attributed to the infl uence both of weather conditions and pollen transport from areas where the fl owering occurs at a different time. Heat requirements calculated using phenological and aerobiological data were similar when the peak pollen- count date was used.

15

Mszyce troficznie związane z brzozami na terenie Polski

71%

Wegierek M., Wegierek P.

Acta Entomologica Silesiana

|

2003

|

tom 11

|

nr 1-2

The researches under insect consortiums as bioindicators have been conducted since the mid 70s in Department of Zoology, Silesian University. The results of researches show that aphids feed on common trees can be used as indicators of habitat condition in many regions (natural ones or of industrial activity). In order to make future researches easier (with the use of the represented method) keys to species of aphids on birches all over Poland in field and laboratory are prepared.

16

Ekstrakty roslinne w postaciach leku i kosmetyku podawanego na skore. Czesc III.

67%

Sysko I., Piechota-Urbanska M., Sonta M., Zgoda M. M.

Pollena. Tłuszcze. Środki Piorące. Kosmetyki

|

1997

|

tom 41

|

nr 09

389-394

17

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

67%

Stach A., Silny W.

Bibliotheca Fragmenta Agronomica

|

1999

|

tom 06

209-216

18

Zespoly rosliniarek [Hymenoptera, Tenthredinidae] minujacych liscie brzozy [Betula L.] w Ogrodzie Botanicznym w Krakowie

67%

Pieronek B., Soltyk D.

Polskie Pismo Entomologiczne

|

1993

|

tom 62

|

nr 1-4

35-44

19

Chrząszcze (Coleoptera) występujące w próchnie brzóz (Betula spp.) na terenie Kampinoskiego Parku Narodowego

67%

Sawoniewicz M.

Leśne Prace Badawcze

|

2013

|

tom 74

|

nr 1

20

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

Ograniczanie wyników