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    Wyświetlanie 1-11 z 11
    Tytuł:
    Wskazniki uszkodzenia koron drzew okreslane metoda drzewostanowa w okresowej ocenie stanu lasu
    Autorzy:
    Jaszczak, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/820213.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    uszkodzenia drzewostanow
    wskaznik uszkodzenia korony
    metoda drzewostanowa
    metody badan
    lesnictwo
    zmiennosc
    Źródło:
    Sylwan; 2000, 144, 10; 69-81
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wykorzystanie metod porzadkowania fitosocjologicznego do obiektywnej oceny zmian typow siedliskowych lasu w Bialowieskim Parku Narodowym
    Autorzy:
    Paluch, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/825651.pdf
    Data publikacji:
    2002
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    metoda wzajemnego usredniania
    metody badan
    typy siedliskowe lasu
    parki narodowe
    lesnictwo
    metoda porzadkowania fitosocjologicznego
    zmiany typow siedliskowych
    Bialowieski Park Narodowy
    Źródło:
    Sylwan; 2002, 146, 07; 77-84
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zastosowanie metody filmowej do badań kinetyki grawitropicznej pędów w zmienionych warunkach grawimorficznych
    Applying the time-lapse imaging technique for the studies of stem gravitropic kinetics in the changed gravimorphic conditions
    Autorzy:
    Zajączkowska, U.
    Malesa, M.
    Kujawińska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989372.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewa
    wierzba biala
    pedy
    grawitropizm ujemny
    grawimorfizm
    metody badan
    metoda filmowa
    gravitrophy
    gravimorphy
    growth kinetics
    shoot regeneration
    time−lapse imaging
    Opis:
    White willow (Salix alba L.) dormant shoots were collected in March and cut into 30 cm segments. The basal ends were placed in containers with sand and kept in dispersed sunlight and the halogen light after dark. To induce the gravimorphic reaction the segments were oriented at the angle of 30 degrees with respect to horizontal line (stage I). After two weeks of culture the segments were turned at the angle of 150 degrees in such a way that the segments were in horizontal position and the newly formed lateral shoots were oriented according to the gravity vector (fig. 1). They were kept in such position for another 2 weeks (stage II). The growth kinetics of newly formed shoots was studied using time lapse technique. It was found that during stage I the most intensive development of lateral buds growth occurred on the upper side at apical part of the shoot segment. During stage II, the newly formed shoots started to reorient opposite to the gravity vector. The latateral shoots close to the apical end responded faster as compared to the shoots located at farther distances. The site of gravitropic response during 2−week−long experiment was moving and located always below apical part of the lateral shoot in the non−lignified zone. Microscopic observations of the newly formed lateral shoots revealed formation of secondary xylem typical for willow and in some regions the structure newly formed xylem was similar to that of tension wood. The possibility of application of 3D digital Image Correlation method for the studies of growth trajectory was tested in the preliminary experiment performed on the seedlings of Cucumis sativus (fig. 2). The preliminary results (fig. 3) indicate that the method could be applied also for the of growth trajectory of woody plants.
    Źródło:
    Sylwan; 2016, 160, 02; 120-126
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Porównanie klasycznej i obecnej metody prognozowania występowania pierwotnych szkodników sosny
    Comparison of classic and current method of forecasting the activity of primary pests of Scots pine
    Autorzy:
    Kozak, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009093.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    ochrona lasu
    szkodniki roslin
    sosna zwyczajna
    Pinus sylvestris
    szkodniki pierwotne
    prognozowanie
    Instrukcja Ochrony Lasu
    metody badan
    metoda powierzchni czastkowych
    metoda klasyczna
    dokladnosc
    pracochlonnosc
    analiza porownawcza
    scots pine
    pests
    autumn search
    Opis:
    German (new) and classic methods of forecasting the activity of primary pests of Scots pine were described in terms of the most important criteria i.e. accuracy and laboriousness. Investigated methods of autumn search of pests did not differ in terms of analysed parameters.
    Źródło:
    Sylwan; 2010, 154, 10; 669-675
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Drzewostanowa metoda inwentaryzacji i kontroli lasów różnowiekowych
    Stand-level inventory and control method for uneven-aged forests
    Autorzy:
    Banaś, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1022776.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany roznowiekowe
    drzewostany
    metoda drzewostanowa
    metody badan
    monitoring
    lesnictwo
    inwentaryzacja lasu
    uneven−aged forest
    control sample plots
    statistical−mathematical inventory system
    Opis:
    The paper presents a stand−level inventory and control method which can be useful in the inventory of uneven−aged forests. The method describes the variation in stem diameter and species structure in a specified stand and allows to define the intensity of processes: loss, ingrowth and increment and to analyse relationships between them.
    Źródło:
    Sylwan; 2005, 149, 11; 18-24
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Drzewostanowa metoda określania uszkodzenia jodły
    Method of assessment the damage to silver fir stands
    Autorzy:
    Dmyterko, E.
    Bruchwald, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1015683.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    uszkodzenia drzewostanow
    defoliacja
    wskaznik uszkodzenia drzew
    metoda drzewostanowa
    metody badan
    lesnictwo
    drzewostany jodlowe
    methods of assessment the damage to stands
    silver fir
    Opis:
    Paper presents two variants of the method of assessment the damage to the silver fir stands that were determined on the basis of the crown development. The first one is based on the tree's defoliation, the other – on the tree's damage index W that includes defoliation (feature A), condition of the tree−top (feature B) and tree's vitality (feature C). Mean defoliation or index W is used to determine one of the four classes of the stand damage. The accuracy of both variants was worked out and minimum number of sample trees required within assumed standard errors of assessed features was determined.
    Źródło:
    Sylwan; 2008, 152, 05; 26-33
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie genetyczne czereśni ptasiej (Prunus avium L.) w Polsce
    Genetic diversity of wild cherry (Prunus avium L.) in Poland
    Autorzy:
    Szyp-Borowska, I.
    Zawadzka, A.
    Zajaczkowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/972788.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    czeresnia ptasia
    Prunus avium
    zroznicowanie genetyczne
    metody badan
    metoda RFLP
    markery mikrosatelitarne
    wild populations
    cpDNA and SSR diversity
    Prunus avium L.
    Opis:
    The purpose of our study was to estimate genetic diversity of Prunus avium in natural populations. Genetic studies were carried out in 27 wild cherry populations sampled from several Polish tree stands. Chloroplast DNA variation was assessed and two haplotypes were identified. Theirs distribution divided populations into two groups. Haplotype H1 was present in 11 of 27 populations and H2 in 16 populations. The PCR− −SSR technique was used to detect nuclear DNA diversity. Three highly polymorphic SSR (microsatellite) primer pairs were used to describe the genetic variation. Heterozygosity values ranged from 0.500 to 0.633, while gene diversity (PIC) from 0.75 to 0.79. This study demonstrated that SSR fingerprinting with cpDNA diversity, can be used for preliminary characterization of Prunus avium populations.
    Źródło:
    Sylwan; 2012, 156, 07; 502-510
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zimowe preferencje siedliskowe sarny oraz potencjalne ostoje tego gatunku na terenie Nadleśnictwa Myślibórz
    Winter habitat preferences of roe deer and potential refuges of this species in the territory of the Mysliborz Forest District
    Autorzy:
    Rembacz, W.
    Orlowska, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/973874.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    sarna
    Capreolus capreolus
    preferencje siedliskowe
    łowiectwo
    zwierzęta łowne
    metody badań
    metoda transektów
    Nadleśnictwo Myśliborz
    roe deer
    linear transects
    bailey’s confidence intervals
    preferred habitats
    Polska
    Opis:
    Winter habitat preferences of roe deer in the territory of the Myślibórz Forest District in north−western Poland were assessed. The habitats preferred by roe deer were fresh mixed coniferous forests (BMśw), mixed swamp deciduous forests (LMb), fresh mixed deciduous forests (LMśw) and moist mixed deciduous forests (LMw). Roe deer preferred birch, larch and pine stands aged 21−60 and over 61 years. This information was useful in selecting winter refuge areas for roe deer in the territory of the Myślibórz Forest District. The total refuge area is 1903.5 hectares, representing 16.3% of the area of the forest district.
    Źródło:
    Sylwan; 2011, 155, 06
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelowanie trwałości boru chrobotkowego Cladonio-Pinetum Juraszek 1927 na terenie Parku Narodowego "Bory Tucholskie" z wykorzystaniem metody powtórzonej chronosekwencji
    Modelling the stability of Cladonia-Scots pine forest (Cladonio-Pinetum Juraszek 1927) within Bory Tucholskie National Park using the repeated chronosequence method
    Autorzy:
    Zaniewski, P.T.
    Potoczny, B.
    Matuszkiewicz, J.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989562.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    parki narodowe
    Park Narodowy Bory Tucholskie
    fitosocjologia
    bor chrobotkowy
    trwalosc zbiorowisk
    metody badan
    metoda powtorzonej chronosekwencji
    zespol Cladonio-Pinetum
    91t0 natura 2000 habitat
    lichens
    detrended correspondence analysis
    Opis:
    Cladonio−Pinetum Juraszek 1927 forest is protected in Europe as the Natura 2000 habitat. Nowadays its naturalness is often considered to be doubtful. In spite of the many research, the knowledge about ecology and dynamics of this community is still insufficient. The aim of the research is to define the stability of the community within ‘Bory Tucholskie' National Park. The site is located in the area of the best developed patches of the habitat, in north−western Poland. Two datasets of relevés were used. The first comes from published data and includes 123 relevés made in year 2000. The other comes from own fieldworks performed in 2014. Due to the high homogeneity of geology and soils of the study site, repeated chronosequence method could be used to compare both datasets. The information about herb and moss layers of all relevés was compared using DCA method. The change in community was measured as a shift in the position within the main gradient of DCA over 14−year period. It was calculated for 122 pairs of relevés. Than the model of the speed of community change was computed for the main gradient. We used two methods of calculation of duration of the lichen−rich pine forests. The first was based on the calculated ranges of distinguished associations and the other used the model of cover of species connected to Cladonio−Pinetum forest. As the speed of community change in the gradient and the distance between distinguished communities were known, the time of community duration could be computed. According to obtained results, Cladonia−Scots pine forest (Cladonio−Pinetum) and lichen rich fresh pine forest (Leucobryo−Pinetum with Cladonia) of ‘Bory Tucholskie' National Park will last for 64−109 years. This result shows, that the considered Natura 2000 habitat is unstable. It is the possible development stage within managed forest stands and active conservation is necessary where its preservation is needed.
    Źródło:
    Sylwan; 2016, 160, 05; 397-406
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Molekularna diagnostyka wybranych patogenów z rodzaju Phytophthora w ramach integrowanej ochrony roślin
    Molecular diagnostic of Phytophthora pathogens as a tool for Integrated Pest Management
    Autorzy:
    Nowakowska, J.A.
    Malewski, T.
    Tereba, A.
    Borys, M.
    Oszako, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/989551.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    fitopatologia
    Phytophthora
    wykrywanie
    identyfikacja
    Phytophthora alni subsp.multiformis
    Phytophthora lacustris
    Phytophthora taxon hungarica
    metody badan
    metoda real time PCR
    sondy TaqMan
    real time pcr
    taqman
    butt and fine root pathogens
    phytophthora
    Opis:
    Traditional detection methods such as baiting or direct isolation take a long time and are incapable to handling large volume of material to be tested. The real−time PCR−based techniques are faster, more sensitive, more easily automated, and do not require post−amplification procedures. Species−specific primers for Phytophthora were designed based on the internal transcribed spacer regions (ITS) of rDNA collected from the NCBI DNA database. Primers and probes were designed using the Allele ID 7 at default search criteria. Specific probes were labeled with the reporter dyes JOE (6−carboxy−4,5−dichloro−2,7−dimethoxyfluorescein) at the 5' end and HBQ1 quencher at the 3' end (Sigma−Aldrich). The specificity of primers and fluorogenic probes was tested against genomic DNA of P. alni subsp. multiformis, P. lacustris and P. taxon hungarica. The real−time PCR reactions with the specific probes and primers yielded positive results with five concentrations of standards obtained by standard PCR reaction for corresponding Phytophthora species. The negative control (lack of DNA pathogens) yielded no amplification products. Standard curves showed a linear correlation between input DNA and cycle threshold (Ct) values with R² from 0.994 (P. alni) to 0.998 (P. taxon hungarica). The amplification efficiency of target DNA varied from 94.6% (P. alni) to 100% (P. taxon hungarica). The validation of the primers and probes designed for analysed Phytophthora species was performed on pure cultures, on soil samples from the forest nursery and declining oak stands. The designed probes displayed the high specificity of the detection of investigated species in pure cultures. The presented new molecular TaqMan probes can fully assist the integrated pest management as a powerful tool for a quick detection of above pathogenic organisms in forest nurseries. The molecular detection of harmful phytophthoras and in consequences diminishing of fungicides use for their control in forestry fully support European Union directives as well as the ‘Good plant protection practice measures' elaborated by European and Mediterranean Organisation of Plant Protection.
    Źródło:
    Sylwan; 2016, 160, 05; 365-370
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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