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    Wyświetlanie 1-3 z 3
    Tytuł:
    Związek typu ugałęzienia świerka pospolitego (Picea abies (L.) Karst.) z jakością surowca drzewnego
    Relationships between Norway spruce [Picea abies [L.] Karst.] branching type and timber
    Autorzy:
    Michalec, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1015618.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    typ ugalezienia
    drewno swierkowe
    Picea abies
    lesnictwo
    jakosc
    wady drewna
    swierk pospolity
    drzewa lesne
    norway spruce
    branching type
    timber quality
    wood defects
    Opis:
    As there are different views concerning the relationship between branching type and timber quality, the present paper attempts to evaluate this relationship. The studies were carried out on 32 sample plots located within the boundaries of two natural ranges of Norway spruce in Poland: north−eastern and south−western. The selected trees were examined for the type of branching, height and diameter at breast height, timber quality, size classes or groups in a butt−end section, and kinds or varieties of wood defects having an effect on timber grade classification. The analyses did not show any clear relationship between branching type and timber quality of Norway spruce.
    Źródło:
    Sylwan; 2008, 152, 06; 33-43
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zbiorowiska grzybów mikroskopijnych zasiedlających martwe drewno świerkowe w Tatrzańskim Parku Narodowym
    Composition of microscopic fungi associated with the spruce dead wood in the Tatra National Park
    Autorzy:
    Pusz, W.
    Zwijacz-Kozica, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/987204.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Tatrzanski Park Narodowy
    obszary ochrony scislej
    obszary uzytkowane gospodarczo
    drewno sosnowe
    drewno martwe
    zasiedlenie
    grzyby mikroskopowe
    sklad gatunkowy
    stopien rozkladu drewna
    dead wood
    fungi
    norway spruce
    tatra national park
    Opis:
    The aim of this research was to determine the composition of microscopic fungi colonizing Norway spruce dead wood depending on the degree of decomposition of wood and the location in the Tatra National Park (TPN; southern Poland). The work included lying and standing dead wood of Norway spruce as well as tree stumps. The sampling plots were located in the Białka Valley (eastern part of the TPN) where the forests are unmanaged and area is mostly under strict pro− tection, and in the western part of the Park, in the Chochołowska Valley, where the majority of forests is privately owned and managed (landscape protection). Samples were collected three times in the growing season, in spring, summer and autumn 2016. The sampling plots were located in the forests covered by different forms of protection: strict, active and landscape. The dominant microscopic fungi inhabiting analysed Norway spruce dead wood in selected regions of the Tatras are fungi belonging to Trichoderma genus: T. harzianum: T. polysporum, and T. hamatum. A much greater diversity of fungi species isolated from the dead wood was found for the Białka Valley, subjected to strict and active protection, than Chochołowska Valley, where forests are subject of the economic utilisation. More species and colonies were obtained from lying and older dead wood than from the stumps in the higher classes of distribution.
    Źródło:
    Sylwan; 2017, 161, 04; 312-319
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mykobiota w obrębie strzał zamierających świerków w Leśnym Kompleksie Promocyjnym "Puszcza Białowieska" i jej ekologiczne funkcje
    Mycobiota in trunks of dying spruce trees in the 'Puszcza Bialowieska' Promotional Forest Complex and its ecological function
    Autorzy:
    Kowalski, T.
    Sowa, J.
    Łakomy, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/985739.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    fitopatologia lesna
    swierk pospolity
    Picea abies
    drzewa zamierajace
    strzaly drzew
    czynniki chorobotworcze
    grzyby mikroskopowe
    Ascomycota
    Basidiomycota
    lesne kompleksy promocyjne
    Lesny Kompleks Promocyjny Puszcza Bialowieska
    norway spruce
    dying trees
    blue stain
    ascomycota
    basidiomycota
    ophiostomatoid fungi
    wood rot
    Opis:
    The European spruce bark beetle (Ips typographus) outbreak observed in the ‘Puszcza Białowieska’ Promotional Forest Complex since 2012 resulted in a total volume of 1.4 million m3 of dead trees in multiple spruce stands. The study aimed to assess the species composition of fungi occurring in spruce trunks at early stages of European spruce bark beetle attack. All the samples used in laboratory analyses were collected in 2016 and 2017 in Białowieża, Browsk, and Hajnówka forest districts. A total of 60 dying spruces selected at random were sampled providing 120 samples. Surface−sterilised samples were used in fungal isolations using malt extract agar medium. The resulting colonies were identified morphologically, additional molecular identification was carried out for representatives of morphotypes using ITS rDNA fragment. In addition to these analyses, the frequently occurring basidiomycete fungi on recently died spruce trees were identified based on the morphology of fruiting bodies. One of the most common symptoms observed on trunks of spruces at the early stages of dieback was the occurrence of sapstains starting from bark beetle galleries. In some trunks the stained wood sections were separated by rusty−red stripes. A total of 51 fungal species including 40 ascomycetes and 11 basidiomycetes were isolated from dying spruce trunks. The number of ascomycete species included 16 ophiostomatoid fungi (members of Ophiostomatales and Microascales). The frequently occurring species in this group were: Endoconidiophora polonica (=Ceratocystis polonica) (17.5%), Grosmannia penicillata (20.8%), Ophiostoma brunneolum (9.2%), O. piceae (5.8%) and O. abieticola (4.2%). Among other ascomycetes only three species were frequently isolated: Neonectria fuckeliana (15.0%), Clonostachys rosea (13.3%) and Cosmospora viridescens (9.2%). The rusty−red coloured areas harboured primarily Amylostereum areolatum and Stereum sanguinolentum. The most frequently detected basidiomycete fungus on trunks at the initial stages of dieback was Cylindrobasidium sp. (=Gloeocystidium ipidophilum), whereas Fomitopsis pinicola was the most frequent species on spruce trunks dead for some years, either standing or wind−snapped. We emphasise the potential role of the detected fungi in forest ecosystems of the Białowieża Forest, both as potential tree pathogens and decomposers of spruce debris remaining in the stand.
    Źródło:
    Sylwan; 2019, 163, 06; 496-507
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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