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Wyszukujesz frazę "Bednorz, L." wg kryterium: Wszystkie pola

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    Tytuł:
    Natural monuments of selected species of the genus Sorbus L. in Poland
    Autorzy:
    Bednorz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/790539.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu
    Tematy:
    natural monument
    tree
    monument
    selected species
    plant species
    Sorbus
    Rosaceae
    Sorbus aria
    Sorbus aucuparia
    Sorbus latifolia
    Polska
    Opis:
    This paper describes 10 natural monuments, including 12 specimens of rowan trees, representing three following species: Sorbus aria (2), S. aucuparia (7) and S. latifolia (1). It also presents a comprehensive analysis of all rowan trees admitted as natural monuments in Poland.
    Źródło:
    Steciana; 2014, 18, 4
    1689-653X
    Pojawia się w:
    Steciana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The wild service tree Sorbus torminalis (L.) Crantz in plant communities of Poland
    Autorzy:
    Bednorz, L
    Powiązania:
    https://bibliotekanauki.pl/articles/41700.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    phytosociology
    forest plant community
    niche amplitude
    conservation
    Rosaceae
    wild service tree
    Sorbus torminalis
    plant community
    Polska
    Vaccinio-Piceetea class
    Quercetea roboli-petraeae class
    Querco-Fagetea class
    Opis:
    The available phytosociological data and original observations were used for preparing a list of plant communities with Sorbus torminalis on its natural sites in Poland. The community context of its sites showed a wide range: from pine-oak forests (alliance Dicrano-Pinion) and oak forests (Quercetalia robori-petraeae, Quercetalia pubescenti-petraeae) to oak-hornbeam forests (Carpinion) and beech forests (Fagion). Oak-hornbeam forests (Carpinion) are the most frequent communities with S. torminalis in Poland. Despite this, oak forests (especially the open thermophilous forests of Quercetalia pubescenti-petraeae) seem to be the most suitable sites for growth and reproduction of this light-demanding tree species. Some remarks on S. torminalis conservation in the community context were also presented as its passive protection in some forest reserves has proved to be ineffective or even harmful.
    Źródło:
    Dendrobiology; 2007, 57; 49-54
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Morphological variability of leaves of Sorbus torminalis [L.] Crantz in Poland
    Autorzy:
    Bednorz, L
    Powiązania:
    https://bibliotekanauki.pl/articles/56763.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    morphological variability
    leaf
    Sorbus torminalis
    plant morphology
    statistical analysis
    Polska
    Opis:
    This paper presents the results of the study on morphological variability of leaves of a scattered tree species Sorbus torminalis (L.) Crantz) in Poland. The leaves from short- and long shoots were collected from 17 localities widespread within the range of the species in Poland. Leaves were measured according to 15 morphological traits. The biometric data were subjected to multivariate statistical analysis in attempt to define variability between local populations. Most of the leaf traits are significantly correlated and are characterised by moderate level of variation. The average among population component of variation was 32.82% and 27.46% for leaves on short- and long shoots, respectively. The differences between sampled populations are significant, but only a weak geographical pattern of this differentiation was detected. Clinal type of variation was ascertained in two traits. Leaf traits which discriminate best the studied populations are also indicated. It was proved that leaves on short shoots differ markedly in shape and size from those of long shoots. Leaves on long shoots are steadier, but morphological trait values are less correlated. The study also confirmed the occurrence of individuals with leaves characteristic for S. torminalis var. perincisa Borbas et Feck and S. torminalis f. mollis Beck in a few Polish populations.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2006, 75, 3; 233-243
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Conservation of genetic resources of Sorbus torminalis in Poland
    Autorzy:
    Bednorz, L
    Powiązania:
    https://bibliotekanauki.pl/articles/41249.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    genetic resource
    conservation
    tree
    Rosaceae
    wild service tree
    Sorbus torminalis
    forest tree
    Polska
    Opis:
    The paper presents the proposal of a strategy of conservation of genetic resources of wild service tree (Sorbus torminalis) in Polish forests. Some results of the recent studies on distribution, resources and genetic variability of wild service tree in Poland that make a scientific base of the programme are presented. Both in situ and ex situ methods should be applied in conservation of genetic resources of S. torminalis. Conservation affords should first to be focused on forest management oriented in favor of wild service tree (e.g. logging intervention, competition control, preparing of favorable sites for new establishments). Further, in situ measures should include selection of conservation areas (natural gene reserves) and preserving trees of the best quality (protected genotypes). These objects would provide seeds for new establishments and to feed populations of small size. The genotypes of the selected earlier preserving trees (about 250–300) would be protected in ex situ conservation objects – seedling and clonal seed orchards. These plantations would also provide seeds needed for future establishments. The genotypes of endangered populations or single trees of S. torminalis could be preserved in the Forest Gene Bank in Kostrzyca.
    Źródło:
    Dendrobiology; 2007, 58; 3-7
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Morphological variability of fruits and seeds of Sorbus torminalis in Poland
    Autorzy:
    Bednorz, L
    Powiązania:
    https://bibliotekanauki.pl/articles/41347.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    tree
    Rosaceae
    plant variation
    biometry
    statistical analysis
    rare species
    tree species
    Sorbus torminalis
    fruit
    seed
    morphological variability
    Polska
    Opis:
    The results of the study on morphological variation of fruits and seeds of a rare forest tree species Sorbus torminalis (L.) Crantz in Poland are presented and discussed. The ripe fruits were collected from 13 localities widespread within the range of the species. Fruits and seeds were measured according to 13 morphological traits. The biometric data were subjected to multivariate statistical analysis in attempt to define intra and inter populational variation. Most of the fruit and seed traits are significantly correlated and are characterized by moderate level of variation. Traits describing size and shape are higher variable in seeds than in fruits. High level of variation within examined populations was ascertained. The average among population component of variation was only 23.99%. Though the differences between sampled populations are significant, almost no geographical pattern of this differentiation was detected. The biological significance of some of fruit and seed features is discussed in the paper. Examining the collected material a single fruits with 5–6 seeds were found what suggests the presence of three carpels in gynoeceum, a number not previously reported in the species.
    Źródło:
    Dendrobiology; 2007, 57; 3-14
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Jak chronić jarząb brekinię (Sorbus torminalis) w polskich lasach?
    How to protect the wild service tree [Sorbus torminalis] in Polish forests?
    Autorzy:
    Bednorz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1012264.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Sorbus torminalis
    zasoby genowe
    wystepowanie
    ochrona gatunkowa
    Polska
    zagrozenia roslin
    gatunki rodzime
    jarzab brekinia
    lesnictwo
    drzewa lesne
    species protection
    genetic resources
    in situ and ex situ measures
    sorbus torminalis
    Opis:
    The paper presents the proposal of the strategy of conservation of genetic resources of Sorbus torminalis in Polish forests. The need of active protection of the species based on both, in situ and ex situ methods, was emphasized.
    Źródło:
    Sylwan; 2009, 153, 05; 354-360
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Trees and shrubs of the Polish part of the Eastern Sudety Mts.
    Autorzy:
    Kosinski, P
    Bednorz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/41655.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Silesian region
    dendrology
    Polska
    biodiversity
    tree
    flora
    chorology
    spatial differentiation
    Sudetes Mountains
    shrub
    Opis:
    Trees and shrubs of the Polish part of the Eastern Sudety Mts. The contemporary woody flora of the Polish part of the Eastern Sudety Mts. is comprised of 217 taxa of trees and shrubs, including 153 native and 64 alien species (together with 24 and 5interspecific hybrids respectively). Among them, 31 native species and 48 anthropophytes were recorded for the first time and 5brambles were new for the flora of Poland. 25% of native species were found on many new localities. Only 4 taxa recorded in the literature were not found (Juniperus communis subsp. alpina, Rosa inodora, Rubus bifrons and Sorbus aucuparia subsp. glabrata).
    Źródło:
    Dendrobiology; 2003, 49
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ekologiczne liczby wskaźnikowe dla starca wąskolistnego Senecio erucifolius z Polski
    Ecological indicator values for Senecio erucifolius from Poland
    Autorzy:
    Podsiedlik, M.
    Bednorz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/2130748.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu
    Tematy:
    Senecio erucifolius
    hoary ragwort
    intraspecific taxa
    ecological indicator values
    Polska
    Opis:
    Twenty three populations of hoary ragwort Senecio erucifolius L. were studied to evaluate the ecological indicator values for this species in Poland; four population represented subsp. erucifolius and 19 subsp. tenuifolius. The indicator values show some diversity between two subspecies but it is the index of continentalism which differs the most these two taxa. Senecio erucifolius subsp. erucifolius is an Atlantic taxon, which occurs in the western part of Poland, while subspecies tenuifolius is subcontinental taxon, occurring mainly in the eastern part of the country.
    Źródło:
    Steciana; 2018, 22, 2; 35-39
    1689-653X
    Pojawia się w:
    Steciana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Morphological leaf variability of rowan [Sorbus aucuparia L. Emend. Hedl. subsp. aucuparia] in the Wielkopolska National Park
    Zmiennosc morfologiczna lisci jarzebu pospolitego [Sorbus aucuparia L. Emend. Hedl. subsp. aucuparia] w Wielkopolskim Parku Narodowym
    Autorzy:
    Bednorz, L.
    Byzia, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/878270.pdf
    Data publikacji:
    2005
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu
    Tematy:
    variability
    Sorbus aucuparia
    Wielkopolski National Park
    Polska
    botany
    rowan
    morphological variability
    leaf
    Wielkopolska region
    multivariate statistical analysis
    Źródło:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2005, 09
    1896-1908
    Pojawia się w:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Jarząb brekinia (Sorbus torminalis) w polskich lasach
    Wild service tree (Sorbus torminalis) in Polish forests
    Autorzy:
    Bednorz, L.
    Urbański, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/991153.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    botanika lesna
    drzewa lesne
    jarzab brekinia
    Sorbus torminalis
    wystepowanie
    Polska
    sorbus torminalis
    forest trees
    species protection
    commercial cultivation
    Opis:
    The paper presents a brief history and present state of Sorbus torminalis in Polish forests. It shows the history of research and conservation of this species and changes in conservation strategies and methods. The future of the species, concerning both conservation and cultivation context looks optimistically.
    Źródło:
    Sylwan; 2014, 158, 08; 614-620
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An assessment of genetic diversity following natural regeneration of Sorbus torminalis in the Forest District of Jamy (northern Poland)
    Autorzy:
    Bednorz, L.
    Myczko, L.
    Kosinski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/41322.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    assessment
    genetic diversity
    natural regeneration
    Sorbus torminalis
    conservation
    wild service tree
    Forest District Jamy
    Polska
    Opis:
    The subject of the study was a population of Sorbus torminalis resulting from spontaneous regeneration from seeds in northern Poland at the north-eastern limit of the species distribution. The population, occupying a fenced plot of 1.72 ha in the Forest District of Jamy, amounted to 579 individuals of variable age classes up to about 19 years old. Six polymorphic gene loci: MDH-B, ME-A, 6PGD-B, ADH-B, PGM-A, PGM-B were studied in 532 individuals recruited post-fencing and 21 potentially parental, adult trees. The analysis showed similarly high levels of genetic diversity within both subsets of individuals but there was also a noticeable change in genetic structure between them. Detailed genetic analysis of the post-fencing recruits revealed lack of significant differences between different age groups based on DBH within the fenced plot.
    Źródło:
    Dendrobiology; 2015, 73
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analyses of spatial structure and selected measures of growth of Sorbus torminalis in Forest District Jamy (northern Poland)
    Autorzy:
    Bednorz, L.
    Kazmierczak, K.
    Kaczmarek, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/41095.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    spatial structure
    plant growth
    Sorbus torminalis
    service tree
    wild plant
    growing space
    tree crown
    conservation
    competition
    Polska
    Jamy Forest District
    Opis:
    The subject of the study was a dynamic population of Sorbus torminalis resulting from spontaneous regeneration from seeds in northern Poland. The population, occupying a fenced plot of 1.72 ha in Forest District Jamy, amounted to 579 individuals. The spatial structure of population and some basic individual traits of trees were recorded, then the growing space of individual trees was examined. The following measures of tree growing space were investigated: crown diameter and projection area, and tree volume. The spatial structure of population was non-random, and there was evidence for effects of population density on tree performance. The observations have to be continued in order to describe optimal growing space of wild service tree; the results could be used to improve in situ conservation of this rare and valuable species.
    Źródło:
    Dendrobiology; 2012, 67
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    SEM observations of pollen grains, fruits and seeds of the Pieniny Mountains [South Poland] endemic species Erysimum pieninicum [Zapal.] Pawl. [Brassicaceae]
    Autorzy:
    Maciejewska-Rutkowska, I
    Bednorz, L.
    Fujiki, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/58978.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    electron microscope
    Erysimum pieninicum
    fruit morphology
    Polska
    seed morphology
    botany
    pollen morphology
    Brassicaceae
    Pieniny Mountains
    forest
    endemic species
    Opis:
    Erysimum pieninicum (Zapał.) Pawł. (Brassicaceae) is an endemic species, growing only in Pieniny Mts. The aim of the presented work was to investigate its pollen morphology as well as its ultrastructural traits of pericarp and seed-coat. Pollen grains of this species were of small size, 3-zonocolpate with reticulate ornamentation. The external siliqua surface was of rugose sculpture, covered by numerous, stellate hairs. The internal surface of the fruit was naked and characterized by striate sculpture. The seed-coat ornamentation of E. pieninicum was of blister type.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2007, 76, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Seed variability of the Polish species of the genus Sorbus (Rosaceae)
    Autorzy:
    Bednorz, L
    Walkowiak, R.
    Maciejewska-Rutkowska, I.
    Molinski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/40978.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Polska
    Polish species
    plant variation
    plant taxonomy
    statistical analysis
    biometry
    seed variability
    Sorbus
    Rosaceae
    Opis:
    This paper presents the results of the study on morphological differentiation of seeds of five Polish species of the genus Sorbus L. (S. aria (L.) Crantz, S. aucuparia L. Emend. Hedl., S. chamaemespilus (L.) Crantz, S. intermedia (Ehrh.) Pers. and S. torminalis (L.) Crantz). The biometric data of 1980 seeds were subjected to multivariate statistical analysis in attempt to define intraspecific variation and to find differences between studied taxa. Most of the seed traits are significantly correlated and are characterised by moderate level of variation. Seeds of S. aucuparia (both subspecies) are the least variable while seeds of S. torminalis and S. intermedia the most. On the basis of size and shape traits of Sorbus seeds only seeds of S. aucuparia can be definitely distinguished from the others.
    Źródło:
    Dendrobiology; 2006, 55; 3-9
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-14 z 14

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