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    Wyświetlanie 1-4 z 4
    Tytuł:
    Morphological, anatomical and cytological characteristics of spontaneous hybrid Pyrus x myloslavensis
    Autorzy:
    Antkowiak, W.
    Maciejewska-Rutkowska, I.
    Jedrzejczyk, I.
    Wojciechowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/41253.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    morphological characteristics
    anatomical characteristics
    cytological characteristics
    hybrid
    spontaneous hybrid
    Pyrus x myloslavensis
    pear
    hybridization
    seed
    pollen
    genome
    Opis:
    Pyrus ×myloslavensis is a hybrid with intermediate characteristics of leaves and fruits inherited from its parental species P. salicifolia and P. communis. The aim of this study was to determine whether these intermediate nature of this taxon would be visible in the pollen and seed anatomy and morphology. In addition, the authors evaluated self-compatibility and crossability based on the observation of pollen tube growth. The investigations were carried out using light, fluorescence and electron microscopies and flow cytometer. Based on pollen and seed morphology the current study confirmed a hybrid origin of the investigated taxon. Especially, pollen grains had most features similar to both parental species. In respect to epidermal micromorphology, the seeds of P. ×myloslaviensis were like P. salicifolia, but anatomical structure of the seed coat of the hybrid was more consistent with P. communis. The data obtained from the current experiment showed that P. ×myloslavensis was self-incompatible and cross-compatible only with one of four tested P. communis cultivars (‘Conference’) and with P. salicifolia. In turn, the average genome size of the hybrid was smaller than putative parents.
    Źródło:
    Dendrobiology; 2016, 75
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Variability of needle characters of Pinus mugo Turra populations in the Karkonosze Mountains in Poland
    Autorzy:
    Sobierajska, K
    Boratynska, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/41473.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Polska
    Karkonosze Mountains
    mountain pine
    subalpine plant
    Pinus mugo
    needle variability
    morphological characteristics
    anatomical characteristics
    plant variation
    plant conservation
    plant population
    Opis:
    The basic aim of the work was to widen the knowledge about variation of Pinus mugo in the Karkonosze (Giant) Mountains and verification of provenance of several, probably planted populations on that basis. Seven populations were sampled, four on hardly accessible precipices of glacial cirques as natural, and three on the topical, mostly plane or only slightly in clined parts of the mountains as potentially alien ones. The variation of the needles was biometrically analyzed in respect of 23 morphological and anatomical characters. Measurement data were subject of multivariate statistical analyses. Results call attention on rather continuous variability of P. mugo in the Karkonosze Mts. The differences among samples were found as relatively low and no direct connections have been detected between variation and provenance from precipices versus plane sites.
    Źródło:
    Dendrobiology; 2008, 59; 41-49
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biochemical, mineral and anatomical characteristics of the olive tree cv. Chetoui growing in several Tunisian areas
    Autorzy:
    Mansour-Gueddes, S.B.
    Saidana, D.
    Cheraief, I.
    Dkhilali, M.
    Braham, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/12188720.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    Tunisia
    plant growing
    Olea europaea
    olive tree
    Chetoui cultivar
    plant cultivar
    anatomical characteristics
    biochemical characteristics
    mineral content
    volatile compound
    growing condition
    stress condition
    Opis:
    To tolerate harsh climatic conditions, olive tree Chetoui has developed some anatomic, physiologic and biochemical mechanisms. The aim of this study was to determine the indicators of stress in leaves, stems and roots growing under various climatic conditions. To protect against stress conditions this cultivar increased cuticle thickness, protective structures and building parenchyma tissues of leaves, woods and roots from the North to the South. The volatile compounds, extracted from northern and southern Chetoui leaves and roots, were analyzed by GC-FID and GC-MS. Great changes in volatiles were illustrated in the studied organs, by enrichment in phenolics and fatty acids for leaves and in hydrocarbons for roots of southern Chetoui. Also, a reduction in terpenes, alcohols and carbonylic compounds was noted in both southern samples. Moreover, minerals of all organs of Chetoui, varied in content and allocation, but their levels are the highest in leaves. The changes in volatiles might be affected by changes in the mineral elements uptake or accumulation under environment stress. A significant correlation was noted between phenolic compounds and sodium, nitrogen, and calcium contents. However, terpenoids was highly correlated with phosphorus content for all organs and studied areas. The detection of new volatiles, anatomical and mineral changes seem to be efficient indicators of adaptation of Chetoui to environment stress conditions.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 2; 49-70
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Differences among three populations of Pinus uliginosa and their relation to P. sylvestris as expressed by the needle characters
    Autorzy:
    Boratynska, K
    Lewandowska, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/41562.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    peat bog pine
    Pinus uliginosa
    needle
    needle structure
    plant population
    Scotch pine
    Pinus sylvestris
    needle characteristics
    morphological study
    anatomical study
    statistical characteristics
    relationship
    differentiation
    Opis:
    The results of morphological and anatomical studies on Pinus uliginosa needles from newly-discovered localities of this species in Węglowiec (Bory Dolnośląskie) are presented. The data obtained were compared to similar published material on P. uliginosa needles from its loco classico in Batorow and from the lowland locality in Węgliniec Nature Reserve, and to P. sylvestris growing nearby. In terms of needle structure, all three P. uliginosa populations were slightly different. The samples analyzed differed markedly from the sample of P. sylvestris, which contradicts the hypothesis that Scots pine has had a significant influence on the gene pool of P. uliginosa.
    Źródło:
    Dendrobiology; 2009, 61; 37-46
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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