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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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The influence of meteorological factors on the hazel (Corylus L.) pollen concentration in Sosnowiec in the years 1997-2007

100%
Dabrowska-Zapart K.
Acta Agrobotanica
|
2008
|
tom 61
|
nr 2
An analysis of hazel pollen seasons in Sosnowiec was presented on the basis of data from the years 1997–2007. 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 research demonstrated statistically significant correlations between the average, maximum and minimum temperature, relative humidity as well as the number of days with sub-zero temperature and the beginning of the hazel pollen season. It was demonstrated that the duration of the pollen season depended on air relative humidity, insolation and precipitation during the season and the annual sum depended on the weather conditions of the year preceding pollen production and also the weather conditions two years earlier. Significant correlations were also found between weather conditions and the daily concentration of pollen grains. The daily concentration decreased when relative humidity was high and increased with high insolation and air temperature.
2
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Types of hazel (Corylus spp.) and alder (Alnus spp.) pollen seasons in Sosnowiec 1997 - 2007 (Poland)

84%
Dabrowska-Zapart K.
Acta Agrobotanica
|
2010
|
tom 63
|
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.
3
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Measurements of chlorophyll fluorescence as an auxiliary method in estimating susceptibility of cultivated hazel (Corylus L.) for filbert aphid (Myzocallis coryli Goetze)

84%
Gantner M., Michalek W.
Acta Agrobotanica
|
2010
|
tom 63
|
nr 1
The influence of aphid feeding on chlorophyll a fluorescence in the leaves of four cultivated hazel cultivars, with different levels of resistance to filbert aphid (Myzocallis coryli Goetze), was studied. The maximum effect of photosystem reaction measured on dark-adapted hazel leaves (Fv/Fm parameter) and maximum efficiency of photon energy PAR conversion to chemical energy in light conditions (Y parameter) were estimated twice, in the leaves of four hazel cultivars with different levels of resistance to filbert aphid, using a fluorometer PAM- 2000 by Walz GmbH – Germany. The analysis of changes of these parameters showed that aphid feeding caused a reaction in all tested cultivars. The most visible reduction of the Fv/Fm and Y values as a result of aphid feeding was observed in the cultivars ‘Cud z Bollwiller’ and ‘Olbrzymi z Halle’, numerously colonized by aphids. A smaller number of aphids found on the leaves of more resistant cultivars – ‘Kataloński’ and ‘Lamberta Biały’, caused a weaker response of plants and a smaller decline in the value of this parameter. ‘Cud z Bollwiller’ cultivar showed higher tolerance than other tested cultivars to stress caused by the feeding of sucking insects. The Fv/Fm and Y parameters can be regarded as reliable indexes useful in diagnosing susceptibility of hazel cultivars to aphids, helpful in determining, for example, harmfulness thresholds.
4

Plonowanie i zdrowotnosc leszczyny uprawnej

84%
Gantner M.
Progress in Plant Protection
|
2003
|
tom 43
|
nr 2
619-621
5
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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The influence of meteorological conditions on the start of the hazel (Corylus L.) pollen season in Lublin, 2001-2009

84%
Piotrowska K., Kaszewski B. M.
Acta Agrobotanica
|
2009
|
tom 62
|
nr 2
Early spring flowering plants show large differences in the start dates of pollen emission due to high weather variability in the preceding period. In the present study, the influence of meteorological conditions on the start date of the hazel pollen season in Lublin in the years 2001-2009 was investigated. The aeropalynological study was carried out by the volumetric method using a Lanzoni VPPS 2000 sampler. The start of the hazel pollen season was determined using the 98% method. The differences in particular years of the study were over two months. Hazel pollen grains were recorded earliest in 2007, since from 13 January, and latest in 2003, from 18 March. It was found that accumulated 5-day mean temperature before the season affects the onset of the pollen season. As a result of multiple regression analysis, a statistical model was derived, which shows with great accuracy the relationship of the start of the hazel pollen season with total precipitation and the number of winter days.
6

Corylus 'Wladyslaw Bugala' - a new purple-leaved cultivar of hazel

84%
Bojarczuk T., Juszczak M., Zielinski J.
Rocznik Dendrologiczny
|
2007
|
tom 55
7

Pathogenicity of Monilia spp. to hazel [Corylus]

84%
Machowicz-Stefaniak Z., Zalewska E.
Acta Mycologica
|
2000
|
tom 35
|
nr 2
8

Aphidofauna of hazel bushes [Corylus L.] on a protected plantation, an unprotected plantation and in a forest

84%
Gantner M.
Annales Universitatis Mariae Curie-Skłodowska. Sectio EEE: Horticultura
|
2000
|
tom 08
9
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Mozliwosc ograniczania wzrostu grzybow patogenicznych dla leszczyny przez bakterie antagonistyczne

67%
Krol Z., Machowicz-Stefaniak Z., Zalewska E.
Acta Scientiarum Polonorum. Hortorum Cultus
|
2003
|
tom 02
|
nr 2
51-57
Amangst 138 epiphytic bacterial isolates originating from hazel leaves 12 isolates limited the growth of B. cinerea, 33 limited the growth of C. corylicola, 31 inhibited the growth of G. coryli and 36 isolates showed antagonistic activity against Phomopsis sp. in-vitro. It was found that 9 isolates limited the growth of all the pathogenes tested and 7 isolates inhibited the growth of at least 3 out of them. The abilities of bacterial isolates tested to limit of the pathgenes growth were higher after 4 days of the biotic influence than after 8 days. Isolates of bacteria with the highest inhibitory activity against the above – mentioned pathogenes were identified as Pseudomonas fluorescens, Pseudomonas sp., Bacillus sp. and Enterobacter, Citobacter, Klebsiella or Erwinia cypripedii.
10

Ryjkowce [Coleoptera, Curculionidae] wystepujace na leszczynie w zroznicowanych warunkach srodowiskowych

67%
Gantner M., Jaskiewicz B.
Progress in Plant Protection
|
2002
|
tom 42
|
nr 2
681-684
11

Naturalna regulacja populacji zwojkowek [Lepidoptera, Tortricidae] wystepujacych na leszczynie w okolicach Lublina

67%
Gantner M.
Progress in Plant Protection
|
2001
|
tom 41
|
nr 2
661-664
12

Lepidoptera of hazel plants in Poland (Part I). Occurence, species, composition and economic importance

67%
Gantner M.
Electronic Journal of Polish Agricultural Universities. Series: Horticulture
|
2003
|
tom 06
|
nr 2
13

Zasiedlenie dwoch odmian leszczyny uprawnej przez Myzocallis coryli Goetze. w powiazaniu z zawartoscia niektorych metabolitow wtornych

67%
Gantner M., Najda A.
Progress in Plant Protection
|
2005
|
tom 45
|
nr 2
659-662
14

Ochrona plantacji leszczyny a odpornosc odmian na najwazniejsze szkodniki

67%
Gantner M.
Progress in Plant Protection
|
2004
|
tom 44
|
nr 1
64-71
15

Seasonal cambial activity of spruce [Picea abies Karst.] with indented rings in the Paneveggio Forest [Trento, Italy]

67%
Nocetti M., Romagnoli M.
Acta Biologica Cracoviensia. Series Botanica
|
2008
|
tom 50
|
nr 2
27-34
Wood with indented rings has long been of interest because it was believed to have special acoustic characteristics and was preferred by the most famous lute and violin makers of the past. In recent years its biological, technical and physical features have become the subject of research. The indentations, which are anatomical anomalies, can be explained by abnormal cambial growth but it is still unclear why and how they are produced. The pinning technique has been used to study the duration and intensity of wood formation of spruce with indented rings grown in the Paneveggio Forest, Italy. The present work describes and discusses the kinetics of cambial activity of trees examined in 2002. Comparison of normal wood and indented xylem showed very similar cambial activity dynamics, characterized by contemporaneous onset and cessation, and by similar trends. Growth rate and final width were the same in each part of the ring. The main differences were not in the timing of xylogenetic processes, but in the morphology of the new cells formed.
16

Toksyczne oddzialywanie fungicydow na grzyby patogeniczne dla leszczyny

67%
Machowicz-Stefaniak Z., Kuropatwa E., Zimowska B.
Progress in Plant Protection
|
1998
|
tom 38
|
nr 2
544-546
17

Intensywnosc ochrony plantacji leszczyny a jej plonowanie

67%
Gantner M.
Progress in Plant Protection
|
1997
|
tom 37
|
nr 2
28-31
18
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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The threat of allergenic airborne trees pollen to pollinosis sufferers in a rural area (Western Pomerania, Poland)

67%
Kruczek A., Puc M., Stacewicz A., Wolski T.
Acta Agrobotanica
|
2015
|
tom 68
|
nr 4
The aim of the study was to investigate the concentration of Alnus L., Corylus L. and Betula L. pollen in the village of Gudowo (Western Pomerania, Poland) in the years 2012–2014 in order to estimate the threat of allergenic tree pollen in this rural region. Measurements were performed using the volumetric method (VPPS Lanzoni 2000 pollen sampler). The duration of the pollen season was determined by the 98% method, taking days on which, respectively, 1% and 99% of the annual total pollen grains appeared as the beginning and end of the season. Pollen grains from hazel occurred in the air as the first ones, before pollen grains from alder and birch. The earliest beginning of the hazel pollen season was recorded in 2012, whereas alder and birch pollen seasons started the earliest in 2014. Daily maximum pollen concentrations of the investigated taxa were recorded in 2014. Birch pollen allergens posed the largest threat to pollinosis sufferers. In the years 2012–2014, pollen concentrations equal or higher than threshold values, at which people with pollinosis show allergic symptoms, were recorded most frequently for birch, hazel, and alder (25, 19, and 14 days, respectively). The highest hourly alder pollen concentration was recorded at 16:00 and in the case of hazel at 15:00. The diurnal distribution of birch pollen concentrations does not show any distinct peaks.
19
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Content available

Characterisation of pollen allergens

67%
Puc M.
Annals of Agricultural and Environmental Medicine
|
2003
|
tom 10
|
nr 2
20
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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The influence of weather conditions on the course of pollen seasons of alder [Alnus spp.], hazel [Corylus spp.] and birch [Betula spp.] in Lublin [2001-2006]

67%
Dabrowska A.
Acta Agrobotanica
|
2008
|
tom 61
|
nr 1
The start and rate of fl orescence of Alnus, Corylus and Betula are dependent on meteorological conditions. In the present paper we have analysed the effect of mean, maximum and minimum temperature, relative air humidity and precipitation on the onset of the pollen season as well as on its length and annual count of pollen grains in alder, hazel and birch. The measurement of pollen fall was done by the gravimetric methods with the use of Durham sampler. Correlation coeffi cients were calculated between the determined characteristics of the pollen season and weather conditions. In the six-year research period 2001-2006 it was observed that low temperatures in January produced a delayed start of the pollen season in alder, hazel and birch. The beginning of fl owering in these taxa was also infl uenced by thermal conditions prevailing directly before the season (ca. 10 days). The pollen season of the trees in question tended to be prolonged alongside with the increase in relative air humidity, but it was shortened due to higher temperatures. The volume of alder and hazel pollen release increased together with the rise in relative air humidity and precipitation. The annual counts of birch pollen increased along with rising temperature and decreasing relative air humidity and precipitation in the season.
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