Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Differentiation" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-11 z 11
    Tytuł:
    Zagrożenie szkółek leśnych przez gatunki Phytophthora
    Menace of forest nurseries by Phytophthora species
    Autorzy:
    Orlikowski, L.
    Oszako, T.
    Ptaszek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/973651.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Phytophthora
    izolaty
    Phytophthora cactorum
    Phytophthora plurivora
    leśnictwo
    szkółki leśne
    zagrożenia roślin
    czynniki chorobotwórcze
    występowanie
    phytophthora
    occurrence
    isolates
    sources
    colonisation
    differentiation
    Opis:
    Occurrence of Phytophthora spp. in soils of 21 forest nurseries and colonisation of Betula pendula, Fagus sylvatica, Picea abies by isolates of P. cactorum, P. cinnamomi and P. plurivora from different host plants and water were studied. The presence of already mentioned species and P. gonapodyides were noticed in 2/3 of surveyed nurseries with domination of P. cactorum and P. plurivora. All isolates used colonised tissues of tested plants in vitro. In greenhouse trial the isolate of. P. cactorum from pansy did not cause any symptoms on spruce and the disease occurred only sporadically on beech seedlings.
    Źródło:
    Sylwan; 2011, 155, 05; 322-329
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ trzebieży na zróżnicowanie strukturalne drzewostanów sosnowych
    Autorzy:
    Brzeziecki, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1022073.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    zroznicowanie
    program BWINPro
    trzebieze
    lesnictwo
    struktura drzewostanu
    bwinpro program
    diameter differentiation
    diameter distribution
    dominance index
    scots pine
    stand
    structure
    thinning
    Opis:
    The impact of two different kinds of thinning on structural diversity of pure, even−aged Scots pine stand, is analysed. The real thinning, performed in the field, is compared with simulated computer thinning. Both thinnings make use of the same set of future (elite) trees, but differ in respect to method of marking of trees for removing. To determine the impact of thinning mode on stand structure, the overall diameter distributions, as well as some structural indices (diameter differentiation, dominance index, contagion index), before and after thinnings, are analysed and compared.
    Źródło:
    Sylwan; 2005, 149, 10; 11-19
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Charakterystyka genetyczna świerka Schrenka (Picea schrenkiana) w gradiencie wysokościowym i geograficznym gór Tien-Szan w Kirgistanie
    Genetic characteristic of Schrenk spruce (Picea schrenkiana) in the altitudal and geographical gradient in Kyrgyz part of Tien-Shan mountains
    Autorzy:
    Magnuszewski, M.
    Nowakowska, J.A.
    Zasada, M.
    Orozumbekov, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/991108.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Kirgistan
    drzewa lesne
    swierk Schrenka
    Picea schrenkiana
    zmiennosc genetyczna
    polimorfizm DNA
    markery SSR
    zroznicowanie genetyczne
    ssr markers
    genetic differentiation
    genetic distance
    picea schrenkiana
    Opis:
    The study showed the genetic structure of nine Schrenk spruce stands, which represented altitude and geographical variants in the Tien−Shan mountains in Kyrgyzstan. Comparison between genetic structure of stands was based on frequencies of nuclear microsatellite (SSR) alleles occurring in three DNA loci. The total genetic differentiation of Schrenk spruce populations was low (FST=0.0651). Eight main groups of populations were distinguished in the dendrogram defined by Nei's genetic distances based on microsatellite markers.
    Źródło:
    Sylwan; 2014, 158, 05; 361-369
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmienność izoenzymatyczna niektórych polskich populacji świerka (Picea abies (L.) Karst.) z doświadczenia proweniencyjnego IUFRO - 1972
    Isozymatic variability in some of the Polish populations of Norway spruce (Picea abies (L.) Karst.) in the IUFRO - 1972 provenance trial
    Autorzy:
    Prus-Głowacki, W.
    Modrzyński, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026385.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    hodowla lasu
    izoenzymy
    Picea abies
    lesnictwo
    IUFRO
    struktura genetyczna
    doswiadczenia proweniencyjne
    zmiennosc
    swierk pospolity
    drzewa lesne
    norway spruce
    polish populations
    isozymes
    genetic differentiation
    provenance trial iufro−1972
    Opis:
    Genetic differentiation of nine Polish Norway spruce populations, expressed by their isozymatic polymorphism, is presented. The results suggest a presence of two gene pools, one in north−eastern, another in southern Poland.
    Źródło:
    Sylwan; 2003, 147, 03; 3-10
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rola śmierci komórek drewna w sukcesie ewolucyjnym roślin drzewiastych
    Contribution of wood cells death to evolutionary success of woody plants
    Autorzy:
    Tulik, M.
    Myśkow, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/989838.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    rosliny drzewiaste
    drewno
    komorki roslinne
    smierc komorki
    morfotypy
    apoptoza
    autoliza
    elementy trachealne
    parenchyma
    wlokno drzewne
    cewki
    tkanka miekiszowa
    autolysis
    cell death
    pcd
    ray parenchyma
    tracheary elements
    fibers
    wood differentiation
    Opis:
    The paper describes the different types of cell death during the process of wood cell formation and terminological variety found in the literature concerned. The cell death referred to as programmed cell death (PCD), is genetically controlled and fundamental for the correct function of the whole organism of woody plants. The wood is mainly composed of the tracheary elements fulfil as conductors of water, fibers that provide the mechanical support and parenchyma cells playing an important role in the storage of water and reserve materials. The PCD of these elements constitutes the final stage of their differentiation and it is proceeded by: (i) cambial cell divisions, (ii) the enlargement of the cambial derivatives. The successive phase concerns (iii) deposition of secondary cell walls and its lignification. After that, the cell commences to digest protoplast, what means that each cell participates in the process of its own demise actively. However, the time and the sequence of the appearance of these phases are distinct among the woody cells. In the case of the tracheary elements the digestion of the protoplast occurs immediately after the tonoplast breakdown. Therefore, these cells are short−lived elements of wood. The life span of the fibers and the parenchyma cells is longer (from month for fibers and years in case of parenchyma cells). For the latter cells the positional information (distance from the cambium) and vicinity with short−lived tracheary elements are considered to be important for undergoing the process of death.
    Źródło:
    Sylwan; 2015, 159, 05; 392-402
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Allele rzadkie i prywatne jako miara bogactwa puli genetycznej materiału sadzeniowego sosny zwyczajnej
    Rare and private alleles as a measure of gene pool richness in Scots pine planting material
    Autorzy:
    Konecka, A.
    Tereba, A.
    Studnicki, M.
    Nowakowska, J.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/979462.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    sosna zwyczajna
    Pinus sylvestris
    material sadzeniowy
    pula genowa
    allele rzadkie
    allele prywatne
    zmiennosc genetyczna
    markery mikrosatelitarne
    genetic differentiation
    microsatellite markers
    forest nursery
    pinus sylvestris l.
    Opis:
    In forestry management, artificially produced planting material is mainly used for renewal the tree population. Seedlings are cultivated in two systems: in the ground (the bare−root seedlings) and in controlled conditions (container seedlings). The aim of the study was to analyse the microsatellite markers of nuclear and chloroplast DNA, in terms of the number and frequency of rare, private, low frequency and common alleles in the planting material of Scots pine. The rare alleles included alleles occurring with less than 1% in analyzed group of seedlings and low frequency alleles occurred with a frequency of less than 25%. The private alleles were detected only in one group of seedlings. Genetic pools of seedlings from traditional (soil) and container production were compared. Planting material came from nurseries in the Olsztynek (N Poland) and the Oleszyce (S Poland) forest district. With the similar number of observed nDNA and cpDNA alleles in both analyzed locations, a higher number of rare, low frequency and private alleles was found within container seedlings. Most private alleles were a rare allele. Rare and private alleles are supposed to be responsible for adaptation to changing climatic conditions and a stressful environment. It seems reasonable to continue research on the meaning of rare and private alleles under conditions of strong selective pressure.
    Źródło:
    Sylwan; 2019, 163, 11; 948-956
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmiany w strukturze genetycznej naturalnego odnowienia dębu (Quercus petraea [Matt.] Liebl.) w odniesieniu do drzew matecznych
    Changes in genetic structure of sessile oak (Quercus petraea [Matt.] Liebl.) natural regeneration in relation to maternal trees
    Autorzy:
    Nowakowska, J.A.
    Michalska, A.
    Zachara, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/990023.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    badania genetyczne
    dab bezszypulkowy
    Quercus petraea
    odnowienia naturalne
    struktura genetyczna
    markery DNA
    drzewa potomne
    drzewa mlode
    zroznicowanie genetyczne
    drzewa mateczne
    zmiennosc genetyczna
    ssr markers
    genetic differentiation
    natural regeneration
    Opis:
    The genetic variability of sessile oak (Quercus petraea L.) mature stand and its natural progeny was investigated. Comparison between genetic structure of parental and progeny trees was based on frequencies of nuclear microsatellite (SSR) alleles occurring in three DNA loci. A slight (4%) increase of gene pool between oak mature and progeny trees was revealed by heterozygosity level estimation, maintaining 86.3% of genetic similarity between generations. Also allele richness, partition probability of basic clustering and inbreed coefficient proved the high genetic similarity between parental and progeny of investigated oak trees. The gene flow occurred within the stands as far as rare alleles were transmitted or new ones appeared in the progenies. The results highlight the necessity of such a study for silvicultural measures taken in order to proceed natural or artificial regeneration in forest tree stand.
    Źródło:
    Sylwan; 2014, 158, 02; 83-89
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie wielkości ciała wybranych gatunków biegaczowatych w ekosystemach leśnych Puszczy Piskiej zaburzonych przez huragan w 2002 roku
    Body size differentiation in selected carabid species inhabiting Puszcza Piska forest ecosystems disturbed by the hurricane in 2002
    Autorzy:
    Garbalińska, P.
    Skłodowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1013382.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    huragany
    Carabus arcensis
    Carabus violaceus
    kleski zywiolowe
    lesnictwo
    wielkosc ciala
    zmiennosc
    Pterostichus niger
    drzewostany pokleskowe
    owady
    Puszcza Piska
    zgrupowania zwierzat
    biegaczowate
    Carabidae
    body size
    carabus arcensis
    carabus violaceus
    pterostichus niger disturbance
    hurricane
    intraspecific differentiation
    Opis:
    Intraspecific differentiation in body size was investigated for Carabus arcensis, C. violaceus and Pterostichus niger populations inhabiting pine forests disturbed by the hurricane and non−disturbed ones. Post−hurri−cane stands were localized in Szast Reference Forest (Pisz Forest District, NE Poland) disturbed by the hurricane in July 2002 and left "untouched" as an experimental area. Non−affected stands were set in Maskulińskie Forest District (NE Poland). Beetles were sampled using pitfall traps. The hurricane contributed to significant reduction in both C. arcensis and C. violaceus body length. However, an opposite trend was observed for P. niger, which increased considerably in body size in disturbed stands compared to control ones. The most pronounced changes were observed in 2007. Differences in habitat preferences and food resources utilization of C. arcensis, C. violaceus and P. niger are discussed.
    Źródło:
    Sylwan; 2008, 152, 11; 3-15
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie fenotypowe i zmienność tła genetycznego polskich proweniencji sosny zwyczajnej
    Phenotypic differentiation and genetic background variation of Polish provenances of Pinus sylvestris L.
    Autorzy:
    Hebda, A.
    Skrzyszewski, J.
    Wachowiak, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/987201.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    drzewa lesne
    sosna zwyczajna
    Pinus sylvestris
    proweniencje krajowe
    zmiennosc fenotypowa
    zmiennosc genetyczna
    markery mikrosatelitarne
    DNA mikrosatelitarny
    polimorfizm loci
    zmiennosc adaptacyjna
    scots pine
    phenotypic differentiation
    neutral variation
    microsatellite markers
    environment correlation
    local adaptation
    Opis:
    We looked at the patterns of differentiation at a set of phenotypic traits of Scots pine populations derived from different environmental conditions of the species distribution range in Poland. The growth traits were tested over 47 years at the provenance trial experiment in the Carpathians. The phenotypic differentiation of the populations was compared to diversity estimates at a set of ten nuclear microsatellite markers. Scots pine populations were highly differentiated concerning diameter at breast high, stand volume, stem straightness and crown width according to the prove− nance and climatic zones. At the same time a low genetic diversity for microsatellite markers and no evidence of population structure was found among proveniences. Local populations from the Carpathian Mountains had lower genetic variation and weaker growth compared to lowland provenances. Among the tested populations Scots pine from lowlands were characterized by the great growth potential and good adaptation to the severe climate of the Carpathians. Populations that showed high quantitative traits differentiation were genetically homogenous at the neutral loci. The results indicate that there are some regions in the genome under selection that drive species adaptive variation.
    Źródło:
    Sylwan; 2017, 161, 04; 277-286
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ trzebieży przerębowej na zróżnicowanie strukturalne drzewostanu
    Autorzy:
    Bilski, M.
    Brzeziecki, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1022233.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    dominacja wymiarowa
    rozklad piersnic
    trzebiez przerebowa
    lesnictwo
    struktura drzewostanu
    rozmieszczenie przestrzenne
    drzewa lesne
    drzewostany jodlowe
    abies alba mill.
    angle measure index
    bwinpro model
    differentiation thinning
    diameter distribution
    diameter spatial diversity
    liocourt−meyer curve
    spatial pattern
    stand structure
    Opis:
    The impact of differentiation thinning on various aspects of structure of exemplary Silver fir stand, including overall diameter distribution, diameter spatial diversity, dimension dominance and spatial distribution pattern, is analysed. Comparison of empirical diameter distribution (before and after thinning) with a the−oretical Liocourt−Meyer curve and the results of structural analysis, lead to the general conclusion that in case of relatively simple−structured Silver fir stands, achieving a desired, plenter−like structure is a longterm process, requiring a lot of consistency and patience.
    Źródło:
    Sylwan; 2005, 149, 04; 21-33
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie przestrzenne i grubościowe drzew w niepielęgnowanych drzewostanach sosnowych o różnym zagęszczeniu początkowym
    Spatial and size diversity of trees in untended pine stands of different initial density
    Autorzy:
    Szmyt, J.
    Ceitel, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/973726.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    hodowla lasu
    drzewostany sosnowe
    sosna zwyczajna
    Pinus sylvestris
    pozycja biosocjalna drzew
    leśnictwo
    drzewa leśne
    zagęszczenie początkowe
    drzewostany niepielęgnowane
    zróżnicowanie przestrzenne
    pierśnice drzew
    zróżnicowanie strukturalne
    wskaźnik skupiskowości CE
    wskaźnik przestrzennego zróżnicowania grubości drzew
    spatial distribution
    biosocial classes
    size differentiation
    initial density
    Scots pine
    Opis:
    Paper presents the analysis of spatial distribution as well as spatial diversity of DBH of living trees and trees of different biosocial class in 34 year old pine (Pinus sylvestris L.) stands of different initial densitiy. The following indices were applied: CE index (spatial distribution) and TD (spatial diversity of diameters). Living trees were distributed regularly in all analysed stands. The lower initial density, the more evenly trees were spaced. Taking into consideration the biosocial position of trees it can be stated that regularity was observed only in case of dominant trees (II Kraft's class). Trees of the other social classes were mostly randomly scattered. Groups of trees were never observed. Analysed pine stands showed small spatial diversity of diameters between nearest neighbors, both in case of living trees and trees of different social classes. The lowest diversity was observed in case of neighbors from predominand and codominant Kraft's class.
    Źródło:
    Sylwan; 2011, 155, 11; 749-759
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies