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    Wyświetlanie 1-5 z 5
    Tytuł:
    Interpopulational variability of Pinus uncinata Ramond ex DC. in Lam. & DC. (Pinaceae) cone characters
    Autorzy:
    Marcysiak, K
    Powiązania:
    https://bibliotekanauki.pl/articles/41589.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    biometric analysis
    plant variation
    biogeography
    plant taxonomy
    numerical taxonomy
    Pinus uncinata
    interpopulational variability
    Pinaceae
    mountain pine
    pine
    Opis:
    The characteristic of Pinus uncinata on the basis of biometrical analyses of 16 cone features was done. The research was based on 8 samples representing 6 populations, consisting of 50 cones each, collected in the Pyrenees, within the natural range of the species. All the investigated cone features were moderately differentiated, with the variation coefficient ranging from 8 to 30%. The particular populations differ significantly from each other statistically according to several features examined. The samples collected in the same population also vary significantly. The differences between populations, however, do not enable their division into groups, which supports their origination from the same Pleistocene refugia.
    Źródło:
    Dendrobiology; 2004, 51; 43-51
    1641-1307
    Pojawia się w:
    Dendrobiology
    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
    Tytuł:
    Pinus mugo Turra geographic differentiation based on needle characters
    Autorzy:
    Boratynska, K
    Muchewicz, E.
    Drojma, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/41739.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Pinus mugo
    needle
    geographic differentiation
    dwarf mountain pine
    plant variation
    plant taxonomy
    plant migration
    needle width
    needle thickness
    Opis:
    The needles of 17 samples representing 15 populations of Pinus mugo Turra from the Alps, Apennines, Sudethians, Carpathians and Rhodopes were analysed in respect to 15 morphological and anatomical characters. The results of measurements were analysed statistically. The variation of the samples was generally not to large. Populations from the East Carpathians appeared different from all other examined. Two formed groups of analysed populations are separated mainly by thickness of epidermal cells, width/thickness of epidermal cell ratio, needle width and needle thickness. The differences between two groups of populations suggest their longer separation during Pleistocene.
    Źródło:
    Dendrobiology; 2004, 51; 9-17
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Low level of inter-populational differentiation in Juniperus excelsa M. Bieb. (Cupressaceae)
    Autorzy:
    Mazur, M
    Boratynska, K.
    Marcysiak, K.
    Didukh, Y.
    Romo, A.
    Kosinski, P.
    Boratynski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/41190.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    interpopulational differentiation
    low level
    plant variation
    plant cultivar zob.tez plant variation
    plant variation zob.tez plant cultivar
    plant taxonomy
    juniper
    Juniperus excelsa
    numerical taxonomy
    biometry
    Cupressaceae
    Opis:
    The intra- and inter-population variation in three populations of Juniperus excelsa, two from Crimea and one from the Balkan Peninsula, were analyzed biometrically. Fourteen morphological characters of cones, seeds, shoots and leaves were used. The number of seeds per cone appears to be the most variable character. The others were more stable. Differences among particular individuals within the samples were slight, as well as between populations compared. The Crimean samples were very close to each other, while the more geographically distant sample from the Balkan Peninsula appears also to be morphologically more separate. This suggests that the Balkan populations originated from another Pleistocene refugium. The Crimean populations did not show the reduction of variability, which could have resulted from their geographical isolation and their considerably restricted numbers of individuals.
    Źródło:
    Dendrobiology; 2004, 52; 39-46
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Taxonomic relationships and population differentiation of the south-western Eurasian Zelkova species inferred in leaf morphology
    Autorzy:
    Jasinska, A.K.
    Rucinska, B.
    Kozlowski, G.
    Fazan, L.
    Garfi, G.
    Pasta, S.
    Bétrisey, S.
    Gerber, E.
    Boratynska, K.
    Boratynski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2078267.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    biogeography
    plant variation
    relict trees
    systematics
    taxonomy
    Ulmaceae
    Opis:
    The relict tree species Zelkova abelicea and Z. sicula (Ulmaceae) occur in Crete and Sicily, respec- tively. Zelkova abelicea grows in approximately 40 localities in the mountains of Crete, while Z. sicula has been found in only two stands in Sicily. We compared 25 morphological characters of the leaves of both species and used statistical methods (Tuk- ey’s test, discrimination analysis, principal component analysis, agglomeration) to reveal the differences between these two species, their relation to Z. carpinifolia (the third Zelkova south-west Eurasian species), and between the leaves from different shoot types. Our study represents the first comparative biometric analysis of the three Zelkova species localized in the western edge of the current geographic range of the genus. We found that the species differed from each other both, in terms of leaf form characters and level of leaf variation. Zelkova carpinifolia was clearly differ- ent from Z. abelicea, while the two populations of Z. sicula, SIB and SIA, were more similar to Z. carpinifolia and Z. abelicea, respectively. The latter finding supports the results of recent molecular studies suggesting the hybrid origin of Z. sicula. Zelkova abelicea, Z. sicula and Z. carpinifolia differ each other in the leaf characteristics and level of phenotypic variation.
    Źródło:
    Dendrobiology; 2021, 85; 60-77
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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