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    Wyświetlanie 1-3 z 3
    Tytuł:
    Rola genetycznych markerow terpenowych w selekcji i taksonomii drzew lesnych. II. Studia struktury genetycznej populacji drzew lesnych
    Autorzy:
    Sabor, J.
    Skrzyszewska, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/810732.pdf
    Data publikacji:
    2002
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    terpeny
    taksonomia
    markery genetyczne
    populacje roslin
    lesnictwo
    Picea abies
    struktura genetyczna
    Pinus sylvestris
    jodla pospolita
    selekcja
    Abies alba
    sosna zwyczajna
    drzewa lesne
    swierk pospolity
    Źródło:
    Sylwan; 2002, 146, 08; 49-60
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Osiągnięcia w hodowli mieszańców ×Festulolium
    Breeding achievement of ×Festulolium hybrids
    Autorzy:
    Rzeznik, A.
    Golinski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/76137.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Łąkarskie
    Tematy:
    trawy pastewne
    Lolium
    Festuca
    mieszance miedzygatunkowe
    Festulolium
    hodowla mieszancowa
    osiagniecia hodowlane
    prace hodowlane
    cechy biologiczne
    cechy chemiczne
    taksonomia
    odmiany hodowlane
    plony
    sucha masa
    zielona masa
    odpornosc na stresy
    warunki srodowiska
    plodnosc roslin
    Opis:
    The aim of this work was to analyze the achievements of ×Festulolium breeding. On the basis of a thorough review of both domestic and foreign literature on the subject as well as our own experiences from investigations carried out at the Szelejewo Plant Breeding Station Ltd. in 2005–2010, the authors analyzed the actual status and perspectives of breeding works concerning ×Festulolium. It turned out that in the breeding of ×Festulolium hybrids significant progress in the global context was achieved. Currently 38 cultivars of ×Festulolium hybrids on the OECD are registered and 34 cultivars in EU common catalogue are recorded. From the point of view of the number of gained cultivars the highest interest of breeding is focusing on Festulolium braunii hybrids obtained from Lolium multiflorum × Festuca pratensis crossing on the basis of amfiploidization and introgressive hybrids of Festulolium pabulare obtained from crossing between Lolium multiflorum (2x) × Festuca arundinacea var. genuina (6x).
    Źródło:
    Łąkarstwo w Polsce; 2013, 16
    1506-5162
    Pojawia się w:
    Łąkarstwo w Polsce
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kłopotliwe derenie - Cornus alba L. i C. sericea L. (Cornaceae). Dwa gatunki czy jeden?
    Troublesome dogwoods - Cornus alba L. and C. sericea L. (Cornaceae). Two species or one?
    Autorzy:
    Zielinski, J.
    Tomaszewski, T.
    Gawlak, M.
    Orlova, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/888524.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Dendrologiczne
    Tematy:
    dendrologia
    deren
    deren bialy
    deren rozlogowy
    Cornus
    Cornus alba
    Cornus sericea
    zroznicowanie morfologiczne
    cechy morfologiczne
    cechy mikromorfologiczne
    pestki
    ksztalt
    grubosc
    liscie
    epiderma
    kutykula
    woski kutykularne
    charakterystyka porownawcza
    cechy taksonomiczne
    taksonomia roslin
    jednostki taksonomiczne
    gatunki
    podgatunki
    zmiany w taksonomii
    Opis:
    The history of taxonomy and problems with identification of two very similar and closely related dogwoods Cornus alba and C. sericea are discussed. They were described by Linnaeus on the basis of flowering cultivated specimens of unknown origin. When characterizing their fruits, Linnaeus got the information from the older, “pre-Linnean”, literature and wrote that they were white in C. alba (Linné 1767) and black in C. sericea (Linné 1771). It was soon pointed out that both taxa had white fruits, however, their specific identity has not been questioned for a long time. Cornus alba and C. sericea are considered to be geographically isolated – the former is recorded from Siberia and NE Europe, while the latter from North America, but both dogwoods are often cultivated and naturalize in many places outside their natural ranges. In European dendrological literature, in which both plants are usually mentioned, there are permanent controversies concerning the differences between them. Attempts are still made to distinguish them, mainly on the basis of their stones and leaf shapes. Narrow stones and abruptly narrowed leaf apex have been attributed to C. alba, while broad stones have been said to be characteristic to C. sericea. Our analysis reveals that shapes of stones of discussed taxa are very variable and their ranges of variability overlap to a considerable extent. The similar kind of variability can be observed in the shape of leaves of both dogwoods. In C. alba leaf blades are most often broadly elliptic and abruptly narrowed, while in C. sericea they are most often broadly ovate and gradually narrowed at the apex. It must be said that there are also numerous exceptions to the above scheme. The filigree pattern of cuticle and the wax crystals on the abaxial leaf surface are sometimes useful for distinguishing C. alba and C. sericea. Unfortunately both features are also variable as those characterized above. Taking into consideration the great similarity of discussed dogwoods and difficulties with their identification, in our opinion the broad species concept of C. alba (including C. sericea) is most reliable and practical. However, as it appears from presented results, both taxa are not fully identical, so the rank of subspecies proposed by Wangerin (1910) – C. alba L. subsp. alba and C. alba subsp. stolonifera (Michx.) Wangerin, seems to be most appropriate in their case. It facilitates identification of wild plants of C. alba s.l. both in flowers and fruit as well as in the vegetative state. It also helps avoid controversy with the classification of cultivars of uncertain origin.
    Źródło:
    Rocznik Polskiego Towarzystwa Dendrologicznego; 2014, 62
    2080-4164
    2300-8326
    Pojawia się w:
    Rocznik Polskiego Towarzystwa Dendrologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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