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

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    Wyświetlanie 1-7 z 7
    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:
    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:
    Phenology of the wild service tree (Sorbus torminalis (L.) Crantz] in Poznań and Wielkopolski National Park
    Autorzy:
    Bednorz, L
    Urbaniak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/41389.pdf
    Data publikacji:
    2005
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    phenology
    seasonal rhythm
    climatic factor
    tree
    Wielkopolski National Park
    Sorbus torminalis
    Rosaceae
    forest tree species
    Opis:
    In this paper the results of the 3-year observations (2001–2003) of seasonal rhythm of S. torminalis trees growing in Poznań in Dendrological Garden of Agricultural University and in forests of Wielkopolski National Park are presented. The observations included the course of leaf development, leaf coloration and leaf fall as well as flowering, fruit ripening and fall. Sixteen phenophases were taken into account. The differences in timing and duration of S. torminalis phenophases from year to year, between two sites and among trees within the same site are pointed out and discussed.
    Źródło:
    Dendrobiology; 2005, 53; 3-10
    1641-1307
    Pojawia się w:
    Dendrobiology
    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:
    Estimation of mating-compatibility of the wild service tree [Sorbus torminalis [L.] Crantz] by observing pollen tube germination
    Autorzy:
    Wojciechowski, A
    Bednorz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/2042041.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    self-incompatibility
    mating-compatibility
    pollen tube
    fluorescence
    tree
    Sorbus torminalis
    germination
    Źródło:
    Journal of Applied Genetics; 2000, 41, 4; 253-258
    1234-1983
    Pojawia się w:
    Journal of Applied Genetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Development of the multilayered epidermis covering fruit of Sorbus torminalis (Rosaceae)
    Autorzy:
    Bednorz, L
    Wojciechowicz, M.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/41101.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    tree
    plant anatomy
    epidermis
    fruit
    Sorbus torminalis
    Rosaceae
    blooming time
    multilayered epidermis
    development
    mature fruit
    epidermal meristem
    Opis:
    In this paper we focus on anatomic structure of the outer cellular layers of the fruit of Sorbus torminalis. We have confirmed the theory of existing of multilayered epidermis providing developmental, histogenetic evidence. The studies were made from blooming time (ovules) to fully ripen fruits, using various histological techniques and microscope types. The multilayered epidermis is derived from successive tangential divisions of cells of initially single-layered epidermis commencing about two weeks after full bloom. The subsequent epidermal layers result from division of cells of epidermal meristem. The mature fruits – about 12 weeks after full bloom – are covered with four – to five-layered epidermis; each layer with its own cuticle. The lenticels developed beneath stomata from phellogen which is not in continuity with the epidermal meristem. Measurements of cuticular membranes thicknesses during development were also made.
    Źródło:
    Dendrobiology; 2009, 62; 11-16
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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