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    Wyświetlanie 1-11 z 11
    Tytuł:
    Changes of peroxiredoxins in beech seeds (Fagus sylvatica L.) during development and maturation
    Autorzy:
    Ratajczak, E.
    Kalemba, E.M.
    Pukacka, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/79952.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    peroxiredoxin
    beech seed
    Fagus sylvatica
    hydrogen peroxide
    reactive nitrogen species
    redox signal
    plant development
    maturation
    immunoblot
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Maturation of Oriental beechnuts (Fagus orientalis)
    Autorzy:
    Yilmaz, M
    Dirik, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/41227.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Oriental beech
    Fagus orientalis
    beechnut
    maturation
    seed
    tree
    Opis:
    In this study, both the morphological maturation and germination ability of the Oriental beechnut were investigated two months prior to seed dispersal to find out the appropriate period of ripened beechnut collection. Beechnuts were collected in the seed stand, Dokurcun-Adapazari, on August 21, September 9, and September 25 on trees, and on October 16, 2003, from the ground after the major seed fall. Germination percentages were 18.0%, 80.5%, 92.0%, and 94.7% on August 21, September 9, September 25, and October 16, respectively. Similarly, both beechnut weight and the embryo:beechnut weight ratio significantly increased with time and reached an approximate maximum level at September 25, 2–3 weeks prior to seed dispersal. This outcome indicates that ripened beechnuts can be collected from the trees, 15–20 days prior to major seed dispersal. The study also indicates that ripened Oriental beechnuts have physiological dormancy and need about 8–10 weeks chilling at 3°C for germination.
    Źródło:
    Dendrobiology; 2008, 60; 57-62
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Seed vigour testing for predicting field seedling emergence in Fagus sylvatica L.
    Autorzy:
    Jensen, M
    Powiązania:
    https://bibliotekanauki.pl/articles/41595.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    predictability
    vigor test
    Fagus sylvatica
    beech
    seed vigor
    seedling emergence
    critical root length
    tree seed
    Opis:
    A vigour test that can predict the field emergence percentage of tree seeds accurately has long been a wish from growers. A new test method, the Critical Root Length (CRL) vigour test, was developed for beech seeds on the basis of the length of primary roots, germinated seeds can produce during a specified test. Pretreated, imbibed seeds were germinated in a vertically positioned moist paper roll during 20days at 15°C in 12 hour light daily. Root length of normally germinated seedlings was recorded and correlated with field emergence percentage to obtain a critical root length for the ability to emerge in the field. Critical root length for Fagus sylvatica was found to be 45 mm. The percentage of normally germinated seeds with roots longer than 45 mm in the CRL test is a predicted estimate of the field emergence percentage of a seed lot. Results of two tests on 5 and 10seed lots showed generally good correlation between CRL predicted emergence and actually obtained field seedling emergence. Large variation in root length was found between and within seed lots, thus displaying large differences in seed vigour. The new test is an applied, easy and inexpensive vigour test developed for nurserymen and seed technicians in order to predict field emergence more accurately.
    Źródło:
    Dendrobiology; 2002, 47 Supplement
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A vigour test for quality assessment of stored beech (Fagus sylvatica L.) nuts
    Autorzy:
    Tylkowski, T
    Powiązania:
    https://bibliotekanauki.pl/articles/41627.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    seed quality
    beechmast
    vigor test
    quality assessment
    Fagus sylvatica
    beech
    nut
    pathogenic fungi
    seedling emergence
    stored beech
    Opis:
    Many seed lots of beech (Fagus sylvatica L.) nuts are characterized by various levels of infection with pathogenic fungi, such as Fusarium, Rhizoctonia and Cylindrocarpon spp. Favourable conditions for fungal infection of beechnuts are created especially during their long-term provisional storage without earlier drying to the moisture content of 8-10%. Strongly infected seed lots are not suitable for long-term storage. During the pre-sowing treatment of seeds by stratification without medium, fungi develop under the moist conditions and infect many healthy seeds. To assess the quality of beechnuts, a vigour test has been developed. Seeds removed from the pericarp (4 replications of 50 nuts each) are placed in boxes between two layers of moist tissue paper and incubated at 25°C for 120 hours. After this period decayed seeds (mouldy seeds) are excluded, and the remained are subjected to embryo viability by the tetrazolium test. When the percentage of decaying seeds (including those with necroses) does not exceed 10-15%, such seed lot can be used for long-term storage. If the percentage exceeds 50%, the seed lot should be considered unsuitable both for storage and for pre-sowing treatment, because only a very small proportion of seeds will emerge in the nursery.
    Źródło:
    Dendrobiology; 2002, 47 Supplement
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Siewnik pneumatyczny do siewu punktowego bukwi
    Pneumatic single-seed drill for sowing beech nuts
    Autorzy:
    Tylek, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/973966.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    buk
    Fagus
    nasiona
    siew punktowy
    siewniki pneumatyczne
    leśnictwo
    drzewa leśne
    szkółki leśne
    pneumatic seed drill
    single−seed sowing
    beech seeds
    plastic greenhouse
    Opis:
    The paper presents the design and construction of a facility coupled with vacuum/pneumatic sowing sections of a seed drill used for single−seed sowing of beech nuts in a plastic greenhouse.
    Źródło:
    Sylwan; 2011, 155, 02; 138-144
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in DNA methylation of embryonic axes of seeds of oak and beech during in vitro culture and cryopreservation
    Autorzy:
    Nuc, K.
    Marszalek, M.
    Pukacki, P.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/80269.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    DNA methylation
    plant growing
    embryonic axis
    seed
    oak
    beech
    in vitro culture
    cryopreservation
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in quality of beech (Fagus sylvatica L.) seeds stored at the Forest Gene Bank Kostrzyca
    Autorzy:
    Gugala, A
    Powiązania:
    https://bibliotekanauki.pl/articles/41527.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    genetic resource
    Fagus sylvatica
    beech
    Forest Gene Bank Kostrzyca
    viability loss
    qualitative change
    long-term storage
    seed
    Opis:
    In the Forest Gene Bank cold stores, both long-term and strategic gene resources are stored to be used during periods of poor seed production. Beech seeds of the following harvests were evaluated: 1995, 1998 and 2000. Quality of seeds was determined with different methods from the date of reception to FGB through preparation for long-term storage, storage in cold stores and the presowing treatment. The usefulness of staining tests for rapid evaluation of beech seed viability is not sufficiently sure. The floating test in water significantly improves the level of seed purity. The current method of seed drying does not remain without influence upon beech seeds and causes a slight decrease of viability. Next to beech seed lots of rapidly declining quality in the FGB are stored seed lots whose viability does not decrease during identical technological processes. Seed lots of low initial viability should be eliminated.
    Źródło:
    Dendrobiology; 2002, 47 Supplement
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rola ptaków w odnawianiu drzew ciężkonasiennych ze szczególnym uwzględnieniem buka Fagus sylvatica L.
    The role of birds in natural regeneration of large−seed trees with special reference to beech Fagus sylvatica L.
    Autorzy:
    Dula, P.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026747.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    ptaki
    zoochoria
    sojka
    botanika lesna
    lesnictwo
    Sitta europaea
    Garrulus glandarius
    buk zwyczajny
    nasiona
    orzechowka
    Nucifraga caryocatactes
    kowalik
    Fagus sylvatica
    ekologia
    drzewa lesne
    seed predation
    seed dispersal
    birds
    natural regeneration
    large−seeded trees
    beech
    coevolution
    jay
    nutoracker
    nuthatch
    Opis:
    The paper is a brief description of the role of birds in forest tree seed dispersal by synzoochory and seed consumption, as well as ecological consequences of these phenomena. Special attention has been drawn to the way seeds are stored by birds or in other words if the seeds can survive and be able to germinate. An overview of the most recent world literature connected with this subject was presented. An attempt has been made to assess the role of seed – eating birds in the natural forest ecosystem.
    Źródło:
    Sylwan; 2003, 147, 05; 65-75
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pokrywa śnieżna jako czynnik wpływający na przeżywalność i kiełkowanie bukwi
    The effect of snow cover on the survival and germination of beech seeds
    Autorzy:
    Piotrowski, M.
    Skrzydłowski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1015913.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    przezywalnosc
    buk zwyczajny
    nasiona
    wyzyny
    Babiogorski Park Narodowy
    lesnictwo
    regiel dolny
    Ojcowski Park Narodowy
    pokrywa sniezna
    Fagus sylvatica
    zdolnosc kielkowania
    drzewa lesne
    fagus sylvatica
    seed survival
    beech seeds
    snow
    Opis:
    The effect of the snow cover on the survival of beech seeds from the time seeds fell onto the ground until the appearance of seedlings was investigated during two seasons at the study sites in the Babiogórski National Park and in the Ojcowski National Park. The obtained results show that snow cover has influence on the shaping of a spatial pattern of seed survival, and on the appearance of germinated seedlings. However, no decisive influence of snow cover was shown on the appearance of seedlings. The drying of the germinated seeds is the main cause of their mortality.
    Źródło:
    Sylwan; 2007, 151, 02; 59-68
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena zróżnicowania nasion buka zwyczajnego (Fagus sylvatica L.) w Polsce w latach 1992 - 2004
    Estimation of European beech [Fagus sylvatica L.] seed differentation in Poland in the years 1992-2004
    Autorzy:
    Bodył, M.
    Sułkowska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1015772.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    buk zwyczajny
    nasiona
    proweniencje
    zdrowotnosc
    cechy morfologiczne
    nasiennictwo
    lesnictwo
    zywotnosc nasion
    masa 1000 nasion
    Fagus sylvatica
    drzewa lesne
    european beech seeds
    fagus sylvatica l.
    seed dimension
    weight
    vitality
    trait variability
    Opis:
    The aim of the study was to estimate the diversity of European beech (Fagus sylvatica L.) seeds in Poland in the years 1992−2004. The investigation started in 1992 when seeds were collected from thirteen selected beech provenances and continued in the following period 1995−2004 with samples of seeds from Seed−Quality Assessment Laboratory. Significant differences in size, shape, vitality and weight of the beech seeds were found between crop years and regions of Poland.
    Źródło:
    Sylwan; 2007, 151, 09; 12-21
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmienność, jakość hodowlana i właściwości fizyczno-mechaniczne drewna trzech pochodzeń buka
    Autorzy:
    Tarasiuk, S.
    Jednoralski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1022150.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    wlasciwosci mechaniczne
    drewno bukowe
    jakosc technologiczna
    buk zwyczajny
    zmiennosc proweniencyjna
    proweniencje
    hodowla lasu
    wlasciwosci fizyczne
    jakosc hodowlana
    lesnictwo
    Fagus sylvatica
    drzewa lesne
    european beech
    silvicultural quality
    technical quality of wood
    provenances
    seed zones
    populational
    tree improvement
    intraspecific variability
    Opis:
    This paper reports 45 years of study on a provenance trail of European beech planted in the Rogów Experimental Forest in central Poland (190 m a.s.l.). Survival, growth and crown shape are analyzed in unthinned till the age of 40 years 3 provenances. The response to the thinning, and selected physico−mechanical properties of wood are analyzed. It is concluded that the poor quality and scarcely distributed local populations of beech is in many respects over−competed by the coastal beech provenance.
    Źródło:
    Sylwan; 2005, 149, 03; 42-49
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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