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Paweł Przybylski
Forest Research Institute, Braci Leśnej 3, Sękocin Stary, 05-090 Raszyn, Poland

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Journal article
Published: 08 August 2021 in Forests
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Scots pine (Pinus sylvestris L.) is a widespread species in Eurasia, but its natural range can be significantly altered by a variety of stressors. The ability of pine to regenerate naturally is significantly reduced by its occurrence in unsuitable habitats. The processes of natural selection of pine from select habitats can be followed in stands of national parks where forestry activities are excluded. The possibility of pine regeneration is influenced by the following factors: characteristics of produced seeds, competition, and genetic characteristics. In the present study, selected factors associated with limiting the natural regeneration potential of pine were analysed. The present work generated important information related to the natural regeneration potential of pine in Central and Eastern Europe. The main objective of the analyses was to discuss the possibility of the natural regeneration of pine stands without human intervention. In addition, the genetic diversity of naturally germinating seedlings was analysed. The obtained results confirmed the high reproductive potential of pine despite the advanced age of the studied trees. The obtained seeds produced by old growth Scots pine trees had high viability, while a significant difference was observed in terms of the average number of cones per dominant tree between studied stands. Thus, the number of cones was the main element determining the regeneration potential of the stands. It should be emphasised that the number of cones did not influence the occurrence of natural regeneration. Based on the obtained results, the regeneration potential of pine stands depends mainly on the habitat and the competitive pressure. In addition, a correlation between genetic parameters and the regeneration potential of stands should be established, which may be the beginning of further research on the process discussed in this publication.

ACS Style

Paweł Przybylski; Monika Konatowska; Szymon Jastrzębowski; Anna Tereba; Vasyl Mohytych; Łukasz Tyburski; Paweł Rutkowski. The Possibility of Regenerating a Pine Stand through Natural Regeneration. Forests 2021, 12, 1055 .

AMA Style

Paweł Przybylski, Monika Konatowska, Szymon Jastrzębowski, Anna Tereba, Vasyl Mohytych, Łukasz Tyburski, Paweł Rutkowski. The Possibility of Regenerating a Pine Stand through Natural Regeneration. Forests. 2021; 12 (8):1055.

Chicago/Turabian Style

Paweł Przybylski; Monika Konatowska; Szymon Jastrzębowski; Anna Tereba; Vasyl Mohytych; Łukasz Tyburski; Paweł Rutkowski. 2021. "The Possibility of Regenerating a Pine Stand through Natural Regeneration." Forests 12, no. 8: 1055.

Journal article
Published: 25 January 2021 in Sustainability
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Biodiversity at the species and individual levels is one of the fundamental elements characterizing an ecosystem. It is assumed that the greater the level of biodiversity, the more tolerant the environment is to changes in external conditions. In recent years, dynamic climate change has negatively impacted the health of many forest trees across Europe, in particular Scots pine. Tree health is commonly characterized by crown defoliation. The study presented here describes and correlates crown defoliation with biodiversity indicators at the species and individual tree levels. Research was conducted in two national parks in Poland (Kampinoski and Bory Tucholskie). Since stands have been under legal protection for many years and forest management is not practiced there, stand development processes taking place there are similar to natural ones. This study provided empirical data on ecosystem response to external stresses based on species and genetic structure. The results confirm differing health of the populations, which results from, among other factors, stand age and the environmental conditions in which they grow. Pine stands in both national parks are genetically diverse but with low genetic variability. Differences in stand health are related to the number of alleles forming the genetic pool. This conclusion is supported by a high correlation coefficient for interactions between defoliation, the number of alleles, and the Shannon index for genotypes. This suggests that greater gene diversity is likely to provide a wider range of phenotypic responses to environmental change.

ACS Style

Paweł Przybylski; Vasyl Mohytych; Paweł Rutkowski; Anna Tereba; Łukasz Tyburski; Kateryna Fyalkowska. Relationships between Some Biodiversity Indicators and Crown Damage of Pinus sylvestris L. in Natural Old Growth Pine Forests. Sustainability 2021, 13, 1239 .

AMA Style

Paweł Przybylski, Vasyl Mohytych, Paweł Rutkowski, Anna Tereba, Łukasz Tyburski, Kateryna Fyalkowska. Relationships between Some Biodiversity Indicators and Crown Damage of Pinus sylvestris L. in Natural Old Growth Pine Forests. Sustainability. 2021; 13 (3):1239.

Chicago/Turabian Style

Paweł Przybylski; Vasyl Mohytych; Paweł Rutkowski; Anna Tereba; Łukasz Tyburski; Kateryna Fyalkowska. 2021. "Relationships between Some Biodiversity Indicators and Crown Damage of Pinus sylvestris L. in Natural Old Growth Pine Forests." Sustainability 13, no. 3: 1239.

Journal article
Published: 29 June 2020 in Folia Forestalia Polonica
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Evolutionary processes lead to the survival of individuals best adapted to local environment. This gives rise to allele polymorphism and genetic diversity of populations. Isoenzyme proteins, which are the product of gene expression, are an effective tool for tracking these changes. On the other hand, the reproductive potential of a given population can be assessed based on its ability to produce viable and efficiently germinating seeds. The present results combine molecular analyses of isoenzyme proteins with anatomical and morphological studies of Scots pine seeds (Pinus sylvestris L.). The study was conducted in 6 populations that are characteristic of this species occurrence range in the country. The results confirm the correlation between seed weight and embryo size. They also show a population from northeastern Poland had a higher effective number of alleles and seed with lower germinative energy and capacity. There was genetic homogeneity in all except for the population from Woziwoda, which was significantly different based on the Fst test. The genetic characteristics of Scots pine from Woziwoda may be associated with the lower levels of rainfall that occur there during the growing season. The results improve our knowledge of Scots pine variability and contribute to the discussion of the impact of local environment on genetic variability.

ACS Style

Paweł Przybylski; Katarzyna Masternak; Szymon Jastrzębowski. Isozyme polymorphism and seed and cone variability of Scots pine (Pinus sylvestris l.) in relation to local environments in Poland. Folia Forestalia Polonica 2020, 62, 88 -99.

AMA Style

Paweł Przybylski, Katarzyna Masternak, Szymon Jastrzębowski. Isozyme polymorphism and seed and cone variability of Scots pine (Pinus sylvestris l.) in relation to local environments in Poland. Folia Forestalia Polonica. 2020; 62 (2):88-99.

Chicago/Turabian Style

Paweł Przybylski; Katarzyna Masternak; Szymon Jastrzębowski. 2020. "Isozyme polymorphism and seed and cone variability of Scots pine (Pinus sylvestris l.) in relation to local environments in Poland." Folia Forestalia Polonica 62, no. 2: 88-99.

Journal article
Published: 31 January 2020 in Forests
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Various studies have established possible threats posed due to pollution using ecological risk indices, but most have focused strictly on anthropogenic areas, so the data from these studies are less comparable with those obtained from natural forest sites, which was the focus of this current study. The main reason for this focus could be attributed to the commonly agreed reference provided by natural forest parks, which are assumed to be uncontaminated. The aim of this research was to determine if the Kampinoski National Park (Poland) could be considered a geochemical referencing ecosystem for Pb, Cd, and Ni levels. The specific purpose was to conduct a soil-background-based evaluation of metal contamination with a focus on geochemical indices as normative tools for assessing similar forest ecosystems at local and international levels. The toxicity response factors indicated some specific metal features that seemed highly magnified for Cd compared with Pb and Ni. The use of geochemical indices when assessing the contamination status of various ecosystems, either natural or strongly anthropogenic, is recommended to enable worldwide comparison, rather than only assessing metal contents. This approach considers the background metal concentrations for local on-site targets as well as pre-industrial reference levels for international referencing.

ACS Style

Paweł Rutkowski; Jean Diatta; Monika Konatowska; Agnieszka Andrzejewska; Łukasz Tyburski; Paweł Przybylski. Geochemical Referencing of Natural Forest Contamination in Poland. Forests 2020, 11, 157 .

AMA Style

Paweł Rutkowski, Jean Diatta, Monika Konatowska, Agnieszka Andrzejewska, Łukasz Tyburski, Paweł Przybylski. Geochemical Referencing of Natural Forest Contamination in Poland. Forests. 2020; 11 (2):157.

Chicago/Turabian Style

Paweł Rutkowski; Jean Diatta; Monika Konatowska; Agnieszka Andrzejewska; Łukasz Tyburski; Paweł Przybylski. 2020. "Geochemical Referencing of Natural Forest Contamination in Poland." Forests 11, no. 2: 157.

Journal article
Published: 15 February 2019 in Agricultural and Forest Meteorology
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Understanding the growth pattern of trees of various provenances in response to climatic conditions provides information on the adaptive potential of trees. Intra-annual density fluctuations (IADFs) are anatomical markers of variations in wood density within the annual wood increment. Latewood-like cells within earlywood, resulting from severe drought during spring and early summer, express the structural adaptation of the wood tissue to unfavorable climatic conditions. In this study, we used two 40-year old IUFRO provenance trials of Norway spruce located in the western and north-eastern Poland to i) determine the effect of provenance on the IADF frequency and ii) to define the climatic factors determining the formation of IADF. Three highly polymorphic nuclear microsatellites are used to determine the differentiation among provenances in particular between the northern and southern Polish distribution area. Our results demonstrate that the frequency of all types of IADFs is determined by the growing conditions, and only the IADFs in the transition zone are determined by provenance origin. The highest variability between provenances in response to climatic differences was observed for IADF in transition zone, where temperatures and rainfall of spring and early summer differentiated northern and southern provenances. Moreover, the IADF frequency was influenced by drought, thereby differentiating provenances in terms of their sensitivity to severe conditions. Furthermore, environmental differentiation of climate-growth reaction was expressed by a stronger impact of climatic conditions observed in the western than in the northeastern trial site. The results of this study confirm the dependency of climate related changes in wood characteristics on provenance origin. Therefore, density fluctuations seem to be an appropriate adaptive trait for selecting Norway spruce provenances with varying degree of drought sensitivity.

ACS Style

Marcin Klisz; Joanna Ukalska; Marcin Koprowski; Anna Tereba; Radosław Puchałka; Pawel Przybylski; Szymon Jastrzębowski; Cristina Nabais. Effect of provenance and climate on intra-annual density fluctuations of Norway spruce Picea abies (L.) Karst. in Poland. Agricultural and Forest Meteorology 2019, 269-270, 145 -156.

AMA Style

Marcin Klisz, Joanna Ukalska, Marcin Koprowski, Anna Tereba, Radosław Puchałka, Pawel Przybylski, Szymon Jastrzębowski, Cristina Nabais. Effect of provenance and climate on intra-annual density fluctuations of Norway spruce Picea abies (L.) Karst. in Poland. Agricultural and Forest Meteorology. 2019; 269-270 ():145-156.

Chicago/Turabian Style

Marcin Klisz; Joanna Ukalska; Marcin Koprowski; Anna Tereba; Radosław Puchałka; Pawel Przybylski; Szymon Jastrzębowski; Cristina Nabais. 2019. "Effect of provenance and climate on intra-annual density fluctuations of Norway spruce Picea abies (L.) Karst. in Poland." Agricultural and Forest Meteorology 269-270, no. : 145-156.

Article
Published: 14 February 2019 in Entomophaga
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We investigated the occurrence and pathogenicity of Beauveria spp. (Hypocreales: Cordycipitaceae) in forest soils in Poland, in outbreak areas of cockchafers (Coleoptera: Scarabaeidae): Melolontha melolontha L. and M. hippocastani F. We also examined the occurrence of Beauveria in relation to soil pH. Beauveria spp. isolates were characterised at species and genotype levels using ITS and microsatellite markers. Beauveria spp., which were detected at over 80% of sites, were sensitive to pH, preferring neutral or alkaline soils. This suggests that the acidity of forest soils in Poland can affect their efficacy as biological control agents (BCAs). B. brongniartii (Sacc.) Petch as a pathogen of cockchafers occurred at 41% of sites, but often at densities below the threshold values for infection, and it infected only 1.3% of cockchafer grubs. Our results suggest that B. brongniartii genotype isolated from cockchafers in forest soils can potentially expand the pool of BCAs in this environment.

ACS Style

Marzena Niemczyk; Alicja Sierpińska; Anna Tereba; Karol Sokołowski; Paweł Przybylski. Natural occurrence of Beauveria spp. in outbreak areas of cockchafers (Melolontha spp.) in forest soils from Poland. Entomophaga 2019, 64, 159 -172.

AMA Style

Marzena Niemczyk, Alicja Sierpińska, Anna Tereba, Karol Sokołowski, Paweł Przybylski. Natural occurrence of Beauveria spp. in outbreak areas of cockchafers (Melolontha spp.) in forest soils from Poland. Entomophaga. 2019; 64 (2):159-172.

Chicago/Turabian Style

Marzena Niemczyk; Alicja Sierpińska; Anna Tereba; Karol Sokołowski; Paweł Przybylski. 2019. "Natural occurrence of Beauveria spp. in outbreak areas of cockchafers (Melolontha spp.) in forest soils from Poland." Entomophaga 64, no. 2: 159-172.

Journal article
Published: 01 September 2018 in Folia Forestalia Polonica
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The Kampinos National Park (KNP), in terms of ecology, is an exceptionally valuable place in the Polish lowland region. Until the 20th century, as a result of limited human influence on the natural resources of the Kampinos Forest, it can be presumed that the 100-year-old tree stands were shaped by natural ecological processes. This study contains a detailed assessment of crown conditions, dendrometric measurements and visible disease symptoms in the oldest fragments of the KNP, as well as statistical evaluation of the relationships between these factors. Results were correlated with ecological factors such as precipitation and temperature. For the purpose of the study, five tree stands, each over 130 years old, were selected. In each stand, the level of defoliation was assessed, based on the forest monitoring methodology performed in Poland for the State Environmental Monitoring. Tree height, circumference, and diameter at breast height measurements were performed for all the trees, and any visible disease symptoms were described. Defoliation data were used to classify 93.6% of the trees as the second level of stand damage (the so-called ‘warning’ level) according to the monitoring methodology. Observed disease factors confirm the physiological weakening of the trees. The populations studied exhibited a range of mean height and stem volume, and these were not significantly related to the level of defoliation or visible disease symptoms. Ecological factors, especially the drought in 2015, probably did not have a negative impact on the examined stands. The analysed pine populations demonstrate physiological weakness, but this appears to be related to their age and natural ecological processes.

ACS Style

Łukasz Tyburski; Pawel Przybylski. Evaluation of the Loss of Assimilation Apparatus and Its Causes in Scots Pine Stands (Pinus Sylvestris L.) of the Kampinos National Park. Folia Forestalia Polonica 2018, 60, 173 -182.

AMA Style

Łukasz Tyburski, Pawel Przybylski. Evaluation of the Loss of Assimilation Apparatus and Its Causes in Scots Pine Stands (Pinus Sylvestris L.) of the Kampinos National Park. Folia Forestalia Polonica. 2018; 60 (3):173-182.

Chicago/Turabian Style

Łukasz Tyburski; Pawel Przybylski. 2018. "Evaluation of the Loss of Assimilation Apparatus and Its Causes in Scots Pine Stands (Pinus Sylvestris L.) of the Kampinos National Park." Folia Forestalia Polonica 60, no. 3: 173-182.

Journal article
Published: 23 July 2018 in Forests
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In order to determine the adaptive potential of silver fir in the southeast of Poland, the stability of the height of its five-year-old progeny was analyzed. The study was conducted in two different population groups in a total of four environments, including one ecologically marginal environment. The linear mixed model was used to evaluate the differentiation of populations in terms of height growth. The genotype and genotype-by-environment interaction biplot (GGE) were used to verify the stability of height. The climate of populations origin, in relation to actual fir distribution in Poland, was verified based on principal components analysis (PCA) of bioclimatic parameters. The highest total variability was explained by the genotype-environment interaction effect (GE) (54.50%), while the genotype effect (G) explained 41.27% and only 4.23% was explained by the site effect. The result of height growth variations revealed the Komańcza site as the most representative among study sites, while the Lesko site characterized the highest discriminating ability. The progeny occurring in climatic conditions most different from the average testing conditions showed a heterogeneous growth reaction, only adapting to the marginal environment, while the progeny of the second population in this region as well as the northernmost one was characterized by a mean but stable growth. The westernmost population revealed maladaptation. The assessment of the adaptability of silver fir depends on the broad spectrum of test conditions considering the ecologically marginal environments.

ACS Style

Marcin Klisz; Krzysztof Ukalski; Joanna Ukalska; Szymon Jastrzębowski; Radosław Puchałka; Paweł Przybylski; Marcin Mionskowski; Jan Matras. What Can We Learn from an Early Test on the Adaptation of Silver Fir Populations to Marginal Environments? Forests 2018, 9, 441 .

AMA Style

Marcin Klisz, Krzysztof Ukalski, Joanna Ukalska, Szymon Jastrzębowski, Radosław Puchałka, Paweł Przybylski, Marcin Mionskowski, Jan Matras. What Can We Learn from an Early Test on the Adaptation of Silver Fir Populations to Marginal Environments? Forests. 2018; 9 (7):441.

Chicago/Turabian Style

Marcin Klisz; Krzysztof Ukalski; Joanna Ukalska; Szymon Jastrzębowski; Radosław Puchałka; Paweł Przybylski; Marcin Mionskowski; Jan Matras. 2018. "What Can We Learn from an Early Test on the Adaptation of Silver Fir Populations to Marginal Environments?" Forests 9, no. 7: 441.

Journal article
Published: 15 December 2017 in Dendrobiology
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Instytut Dendrologii PAN w Kórniku - Institute of Dendrology PAS (Kórnik, Poland)

ACS Style

Szymon Jastrzębowski; Krzysztof Ukalski; Marcin Klisz; Joanna Ukalska; Pawel Przybylski; Jan Matras; Władysław Barzdajn; Wojciech Kowalkowski. Assessment of the height stability in progeny of Fagus sylvatica L. populations using the GGE biplot method. Dendrobiology 2017, 79, 34 -46.

AMA Style

Szymon Jastrzębowski, Krzysztof Ukalski, Marcin Klisz, Joanna Ukalska, Pawel Przybylski, Jan Matras, Władysław Barzdajn, Wojciech Kowalkowski. Assessment of the height stability in progeny of Fagus sylvatica L. populations using the GGE biplot method. Dendrobiology. 2017; 79 ():34-46.

Chicago/Turabian Style

Szymon Jastrzębowski; Krzysztof Ukalski; Marcin Klisz; Joanna Ukalska; Pawel Przybylski; Jan Matras; Władysław Barzdajn; Wojciech Kowalkowski. 2017. "Assessment of the height stability in progeny of Fagus sylvatica L. populations using the GGE biplot method." Dendrobiology 79, no. : 34-46.

Journal article
Published: 01 September 2017 in Folia Forestalia Polonica
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During 2015 and 2016, in the Kampinos National Park (KNP), monitoring was conducted for the population of black alder (Alnus glutinosa (L.) Gaertn.), which occupies 12.5% of the tree stands in the park and, after the Scots pine (Pinus sylvestris L.), is the second most important species there. The aim of the observation was to obtain data about the current condition of alder in the National Park. Monitoring was carried out on eight plots designated throughout the park. Stands where alder was not the dominant species were omitted. On each plot, 20 trees were evaluated with a total of 160 plants assessed. The age of the tree stands analysed was 55–120 years. Monitoring was conducted by assessing the tree’s crowns, based on the methodology of forest monitoring implemented by the National Environmental Monitoring. Based on the analyses, it was found that the average defoliation of alder in 2015 reached 28.1%, and 34.4% in 2016, with the differences being statistically significant. Among 70% of the specimens, there was no discoloration of the assimilation apparatus. There were significant differences in defoliation between research plots located inside the park and near its borders, which can be associated with the influence of anthropogenic factors. Based on the monitoring, it was found that the state of alder crowns in KNP is a warning or average, depending on the year of observation. Therefore, it is necessary to continue monitoring the state of alder crowns in KNP. On the basis of the study results, it was also found that the biosocial structure of the researched tree stands is formed correctly. The dendrometric measurements conducted show that the average diameter of the trees analysed, at breast height was 30.5 cm with an average height of 25.5 m. To analyse the changes in height and breast height, dendrometric measurements must be repeated in 2020. Monitoring will be continued in the following years to observe the changes.

ACS Style

Łukasz Tyburski; Pawel Przybylski. The state of crowns of black alder (Alnus glutinosa (L.) Gaertn.) in Kampinos National Park (Central Poland) in years 2015–2016 – preliminary studies. Folia Forestalia Polonica 2017, 59, 189 -197.

AMA Style

Łukasz Tyburski, Pawel Przybylski. The state of crowns of black alder (Alnus glutinosa (L.) Gaertn.) in Kampinos National Park (Central Poland) in years 2015–2016 – preliminary studies. Folia Forestalia Polonica. 2017; 59 (3):189-197.

Chicago/Turabian Style

Łukasz Tyburski; Pawel Przybylski. 2017. "The state of crowns of black alder (Alnus glutinosa (L.) Gaertn.) in Kampinos National Park (Central Poland) in years 2015–2016 – preliminary studies." Folia Forestalia Polonica 59, no. 3: 189-197.

Short report
Published: 07 March 2017 in New Zealand Journal of Forestry Science
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Background The productive potential of European species of forest tree assumes particular importance in the context of populations adapting to accelerating climatic change. Genotype-environment interaction (G × E) was studied to determine Picea abies (L.) H.Karst. (Norway spruce) inter-population variation, characterising their adaptability to the growing conditions in north-eastern Poland. The data were analysed from 22 populations evaluated in four experimental sites based on 5-year height. To identify best-adapted as well as specifically adapted populations, GGE biplots were performed. Findings Analysis of multi-environment trial (MET) data revealed significant differences between four experimental sites, as well as interactions between populations and sites. However, it proved possible to identify specifically adapted populations achieving high values for the trait at specific sites only, although some performed relatively well across several sites. Conclusions The productive potential of the Norway spruce populations in north-eastern Poland is associated with specific adaptation of given populations to growth conditions at the experimental sites. However, in the set of populations studied can also be found some capable of average but stable growth in all experimental sites. Keywords Picea abies GGE biplot Genotype × environment interaction Stability Multi-environment trials Growth rate Adaptation

ACS Style

Marcin Klisz; Szymon Jastrzębowski; Krzysztof Ukalski; Joanna Ukalska; Paweł Przybylski. Adaptation of Norway spruce populations in Europe: a case study from northern Poland§. New Zealand Journal of Forestry Science 2017, 47, 1645 .

AMA Style

Marcin Klisz, Szymon Jastrzębowski, Krzysztof Ukalski, Joanna Ukalska, Paweł Przybylski. Adaptation of Norway spruce populations in Europe: a case study from northern Poland§. New Zealand Journal of Forestry Science. 2017; 47 (1):1645.

Chicago/Turabian Style

Marcin Klisz; Szymon Jastrzębowski; Krzysztof Ukalski; Joanna Ukalska; Paweł Przybylski. 2017. "Adaptation of Norway spruce populations in Europe: a case study from northern Poland§." New Zealand Journal of Forestry Science 47, no. 1: 1645.

Journal article
Published: 01 December 2016 in Folia Forestalia Polonica
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In 2015 in Kampinos National Park (KNP), monitoring of tree crown condition was conducted in specimens of the Scots pine, which is the dominant tree species in the park (73.3%). The monitoring was aimed at providing information about the health of pine trees in the national park area. The monitoring was conducted on 26 plots throughout the park. The stands where the pine is not a dominant species were omitted. On each plot, 20 trees were subjected to assessment. In total, 520 pine trees were examined. The monitoring was conducted by the assessment of tree crowns based on the adapted forest monitoring methodology conducted as part of National Environmental Monitoring. On the basis of the monitoring, it was found that 75.4% of the trees are characterised by slight defoliation and 94.4% of the specimens were not found to have discoloration of the assimilation apparatus. No differences were found between areas situated closer and further from the administrative borders of Warsaw. On the basis of the monitoring, it was found that the pine trees in KNP are in a good health condition. Dendrometric measurements show that the average diameter at breast height (DBH) of the analysed trees is 26.6 cm. The average height of the trees is 20.4 m. The average age of the examined tree stands is 84. The monitoring will be continued in subsequent years in order to record the changes taking place in tree crowns.

ACS Style

Łukasz Tyburski; Paweł Przybylski. Health condition of the Scots pine (Pinus sylvestris) in Kampinos National Park – preliminary studies. Folia Forestalia Polonica 2016, 58, 240 -245.

AMA Style

Łukasz Tyburski, Paweł Przybylski. Health condition of the Scots pine (Pinus sylvestris) in Kampinos National Park – preliminary studies. Folia Forestalia Polonica. 2016; 58 (4):240-245.

Chicago/Turabian Style

Łukasz Tyburski; Paweł Przybylski. 2016. "Health condition of the Scots pine (Pinus sylvestris) in Kampinos National Park – preliminary studies." Folia Forestalia Polonica 58, no. 4: 240-245.

Journal article
Published: 01 March 2016 in Forest Research Papers
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The aim of the study was to determine the vulnerability of selected silver fir populations to damage from late frost in the climatic conditions of south-eastern Poland. To determine the vulnerability of apical and lateral shoots to damage caused by late frosts, we observed four test plots in 2009 and 2014, each containing progenies of selected seed stands. Our statistical analyses were based on a model incorporating the following variables: site, year, type of frost damage, population as well as the possible interaction between these variables. Significant differences between the populations were found in terms of their sensitivity to damage from low temperature occurring during the growth period. Furthermore, we indirectly demonstrated differences in the severity of late frost on the experimental plots, as well as the intensity and variability of late frost shoot damage. Based on these results, we divided the studied populations into two groups of low (EF, KRA1 and NAR) and high (LES2 and BAL2) sensitivity to late frost damage.

ACS Style

Marcin Klisz; Szymon Jastrzębowski; Joanna Ukalska; Paweł Przybylski; Jan Matras; Marcin Mionskowski. The vulnerability of silver fir populations to damage from late frosts. Forest Research Papers 2016, 77, 24 -31.

AMA Style

Marcin Klisz, Szymon Jastrzębowski, Joanna Ukalska, Paweł Przybylski, Jan Matras, Marcin Mionskowski. The vulnerability of silver fir populations to damage from late frosts. Forest Research Papers. 2016; 77 (1):24-31.

Chicago/Turabian Style

Marcin Klisz; Szymon Jastrzębowski; Joanna Ukalska; Paweł Przybylski; Jan Matras; Marcin Mionskowski. 2016. "The vulnerability of silver fir populations to damage from late frosts." Forest Research Papers 77, no. 1: 24-31.

Journal article
Published: 01 September 2015 in Forest Research Papers
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Scots pine (Pinus sylvestris L.) is the most common species in Poland’s forest stands. The mode of pine stands renovation requires that silviculture practitioners have continuous access to seed banks. Orchard-grown seeds are predicted to constitute an increasingly larger part of the average demand for pine seeds in Poland. Seed orchards, due to a limited number of maternal trees as well as the irregularity of their blooming and pollination, enhance the risk of genetic diversity reduction in planted forest stands. This is of particular importance in the context of dynamic climate change. Markers based on microsatellite DNA fragments are effective tools for monitoring genetic variability. In the present study, three different microsatellite DNA fragments were used: SPAC 12.5, SPAG 7.14 and SPAC 11.4. The main objective of this research was to study genetic variability in one of the biggest seed orchards in Poland, located in the Forest District Susz. The obtained results indicated heterozygosity loss within the orchard, proving the existence of specimen selection effects on genetic variability. Hence, it seems quite important to take account of molecular genetic variability of maternal trees in future breeding strategies.

ACS Style

Paweł Przybylski. Are we narrowing genetic variability in seed orchards? An attempt to answer, based on the analysis of microsatellite DNA of grafts growing in Scots pine (Pinus sylvestris L.) seed orchard in the Forest District Susz. Forest Research Papers 2015, 76, 240 -249.

AMA Style

Paweł Przybylski. Are we narrowing genetic variability in seed orchards? An attempt to answer, based on the analysis of microsatellite DNA of grafts growing in Scots pine (Pinus sylvestris L.) seed orchard in the Forest District Susz. Forest Research Papers. 2015; 76 (3):240-249.

Chicago/Turabian Style

Paweł Przybylski. 2015. "Are we narrowing genetic variability in seed orchards? An attempt to answer, based on the analysis of microsatellite DNA of grafts growing in Scots pine (Pinus sylvestris L.) seed orchard in the Forest District Susz." Forest Research Papers 76, no. 3: 240-249.

Journal article
Published: 01 June 2015 in Folia Forestalia Polonica
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The analysis of chosen selected Scots Pine (Pinus sylvestris L.), populations representing different seed regions: 107 (Międzyzdroje), 305 (Woziwoda), 206 (Strzałowo), 208 (Białowieża), 504 (Bolesławiec), 606 (Józefów) were performed using 10 isoensyme markers: Gdh (E.C.1.4.1.2), Sdh-A, Sdh-B (E.C.1.1.1.25), Pgd-B (E.C.1.1.1.44), Mdh-A, Mdh-C (E.C.1.1.1.37), Got-A, Got-B, Got-C (E.C.2.6.1.1), Dia-C (E.C.1.8.1.4). There were calculated following genetic parameters: allelic frequencies, observed and expected heterozygosities, and Wright’s fixation indexes. In populations, the results of analysis indicated presence of rare alleles. In all study populations, the average effective number of alleles per locus was 1.46 and was lower than expected number of alleles per locus of 1.93. The results for the effective number of alleles of the population per locus were as follows: Strzałowo and Białowieża 1.54, Bolesławiec 1.48, Jozefów 1.44, Świnoujście 1.42, Woziwoda 1.35. Average observed heterozygosity in the studied populations was calculated at the level of 0.26 and it was lower than the expected heterozygosity at 0.28. For populations, the level of heterozygosities were as follow: Strzałowo 0.35, Bolesławiec and Białowieża 0.25, Józefów 0.27, Świnoujście 0.23, Woziwoda 0.26. In particular loci level of heterozygosity was different, as the most heterozygous Mdh-C locus was estimated, while minimum Got-C. Significant differences in allele frequency of Hardy-Weinberg deviation equilibrium were found in 10 cases: Strzałowo (Got-C), Bolesławiec (Got-B), Białowieża (Got-B, Gdh), Józefów (Mdh-C), Międzyzdroje (Got-B, Got-C, Mdh-C), Woziwoda (Got-C, Gdh). All studied populations had a lower effective number of alleles per locus (Ne) comparing to the observed number of alleles (Na). Wright’s fixation indices were negative for populations: Strzałowo (-0.09), Józefów (-0.03), Międzyzdroje (-0.01) and positive for: Białowieża (0.12), Woziwoda and Bolesławiec (0.07). The extremely high Wright’s fixation index (0.12) was observed for Białowieża population.

ACS Style

Paweł Przybylski; Jan Matras; Małgorzata Sułkowska. Genetic variability of Scots pine (Pinus sylvestris L.) in maternal regions of provenance. Folia Forestalia Polonica 2015, 57, 112 -119.

AMA Style

Paweł Przybylski, Jan Matras, Małgorzata Sułkowska. Genetic variability of Scots pine (Pinus sylvestris L.) in maternal regions of provenance. Folia Forestalia Polonica. 2015; 57 (2):112-119.

Chicago/Turabian Style

Paweł Przybylski; Jan Matras; Małgorzata Sułkowska. 2015. "Genetic variability of Scots pine (Pinus sylvestris L.) in maternal regions of provenance." Folia Forestalia Polonica 57, no. 2: 112-119.