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    Wyświetlanie 1-14 z 14
    Tytuł:
    Agregat uprawowy do inspektów szkółkarskich
    A cultivation unit for forest nursery seedbeds
    Autorzy:
    Tylek, Paweł
    Walczyk, Józef
    Mateusiak, Łukasz
    Powiązania:
    https://bibliotekanauki.pl/articles/883985.pdf
    Data publikacji:
    2019-12-15
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
    Tematy:
    szkolki lesne
    inspekty
    sadzonki
    uprawa roslin
    agregaty uprawowe
    forest nursery
    nursery technology
    seedling cultivation
    Opis:
    Hodowla sadzonek drzew leśnych w korytach (inspektach Dunemanna) daje możliwość intensyfikacji produkcji leśnego materiału rozmnożeniowego, jednak konstrukcja samych obiektów nie sprzyja mechanizacji poszczególnych zabiegów agrotechnicznych. Przygotowanie podłoża odbywa się zwykle poprzez ręczny wysiew nawozu i mieszanie go z substratem za pomocą ręcznie prowadzonej glebogryzarki napędzanej silnikiem spalinowym, następnie zagrabienie i uwałowanie powierzchni. W niniejszym opracowaniu zaprezentowano urządzenie, które nie ma odpowiednika w technice szkółkarskiej, umożliwiające precyzyjne dozowanie nawozu, mieszanie z podłożem do zadanej głębokości, formowanie powierzchni siewnej oraz wałowanie gleby. Czasochłonność przygotowania podłoża przy wykorzystaniu agregatu nowej konstrukcji w porównaniu do tradycyjnej ręcznej technologii jest ponad 8-krotnie mniejsza.
    Forest tree seedling cultivation in Dunemann seedbeds facilitates the intensification of production of forest reproductive material. However, the construction of seedbeds themselves is not conducive to mechanisation of individual agrotechno-logical operations. Substrate preparation is usually performed by manual spreading of a fertiliser and by mixing it with the substrate by means of a manually operated rotary tiller powered by an internal combustion engine, which is followed by surface raking and compaction. This study presents a device that has no equivalent in nursery technology. The unit en-ables precise measurement of a fertiliser amount, mixing it with the soil to a given depth, forming a sowing surface, and soil compaction. Thanks to the use of the novel cultivation unit, the time-consuming substrate preparation becomes over 8 times lower as compared to the traditional manual technology.
    Źródło:
    Technika Rolnicza Ogrodnicza Leśna; 2019, 5; 6-9
    1732-1719
    2719-4221
    Pojawia się w:
    Technika Rolnicza Ogrodnicza Leśna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Measurements of operating parameters for tractors in forest nurseries carried out using the GPS system
    Pomiar parametrów eksploatacyjnych ciągników w szkółkach leśnych systemem GPS
    Autorzy:
    Słowiński, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/288747.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Inżynierii Rolniczej
    Tematy:
    monitoring
    GPS
    szkółkarstwo leśne
    forest nursery
    Opis:
    The work presents the methodology of a measuring system for a tractor working in selected forest nurseries. The measuring system monitors the tractor's position using the GPS and acquires data from installed sensors. Obtained data will make it possible to specify in a precise way the annual use of the tractor and machines, to carry out an analysis of working time, driving style, tractor working speeds and fuel consumption while working with individual machines, skids of tractor drive wheels, tractor engine utilisation level. Obtained data will allow precise determination of machinery operation costs.
    W pracy przedstawiono metodykę systemu pomiarowego ciągnika zainstalowanego w wybranych szkółkach leśnych. System pomiarowy monitoruje położenie ciągnika przy pomocy GPS oraz zbiera dane z zamontowanych czujników. Dzięki uzyskanym danym będzie możliwe dokładne określenie: wykorzystania rocznego ciągnika i maszyn, będzie możliwa analiza czasu pracy, sposobu jazdy, stosowanych prędkości roboczych zużycia paliwa przez ciągnik przy pracy z poszczególnymi maszynami, poślizgów kół napędowych ciągnika, stopień wykorzystania silnika ciągnika. Otrzymane dane pozwolą na dokładne określenie kosztów pracy maszyn.
    Źródło:
    Inżynieria Rolnicza; 2011, R. 15, nr 7, 7; 141-147
    1429-7264
    Pojawia się w:
    Inżynieria Rolnicza
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using the RE235734 radar from John Deere to measure actual distance covered by a tractor on selected nursery grounds
    Zastosowanie radaru RE235734 firmy John Deere do pomiaru drogi rzeczywistej ciągnika na wybranych podłożach szkółkarskich
    Autorzy:
    Słowiński, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/288745.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Inżynierii Rolniczej
    Tematy:
    radar
    ciągnik
    szkółkarstwo leśne
    tractor
    forest nursery
    Opis:
    The work presents the evaluation of a measuring system consisting of a radar giving information on actual distance covered by a tractor and a computer interface archiving measurement data. The measuring system was installed on the Ursus MF235 tractor. The research was carried out for selected ground types, on which tractor wheels move in a forest nursery: asphalt, green fallow, and technological tracks next to sowing ridge. Obtained results allowed determining suitability of this radar for measuring distance covered by tractor or its speed in open forest nurseries. Obtained data shows that the number of pulses generated by the radar per distance unit depends on the angle of radar position relative to the ground. The highest accuracy was reached while the radar was set at the angle of 40-45°.
    W pracy przedstawiono ocenę system pomiarowego składającego się z radaru dającego informację o przebytej drodze rzeczywistej przez ciągnik oraz interfejsu komputerowego archiwizującego dane pomiarowe. System pomiarowy zainstalowano na ciągniku Ursus MF235. Badania przeprowadzono dla wybranych podłoży po których poruszają się koła ciągnika w szkółce leśnej: asfaltu, ugoru zielonego, ścieżki technologiczne obok grzędy siewnej. Dzięki uzyskanym wynikom możliwe było ustalenie przydatność tego radaru do pomiarów drogi czy prędkości ciągnika w otwartych szkółkach leśnych. Otrzymane dane pozwalają stwierdzić, że ilość impulsów jakie generuje radar na jednostkę drogi jest zależna od kąta ustawienia radaru do podłoża. Przy ustawieniu radaru pod kątem 40-45° osiągnięto największą dokładność.
    Źródło:
    Inżynieria Rolnicza; 2011, R. 15, nr 7, 7; 149-155
    1429-7264
    Pojawia się w:
    Inżynieria Rolnicza
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Use of composted sludge and forest ectohumus to enrich soil in two - and three-year cultivation of common beech seedlings
    Autorzy:
    Rolbiecki, S.
    Klimek, A.
    Rolbiecki, R.
    Figas, A.
    Ptach, W.
    Gackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/101217.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    forest nursery
    common beech
    compost
    mulching
    Acari
    Opis:
    This study examined the effect of fertilisation with compost prepared from hygienised sludge with an addition of pine-tree bark and mulching with fresh forest ectohumus on selected growth parameters in two – and three-year seedlings of common beech and the occurrence of mites (Acari) in soil. The experiment was carried out in 2009-2010 in the Białe Błota forest nursery (Bydgoszcz Forest District) on proper rusty soil. The entire area of the experiment was irrigated with a stationary sprinkler. The beech seedlings on the plots where compost had been used as fertiliser were significantly taller than those growing on the plots where mineral fertilisers had been applied. Mulching increased the height of the seedlings significantly only in the last, third year of the study. The tallest three-year-old seedlings were found on the plots in which both of the tested procedures had been carried out. Neither of the factors under study had a significant effect on the diameter of the root neck in the second year of the nursery cultivation, but they increased it significantly in the third year. Fertilisation with compost with an addition of pine-tree bark increased the number of leaves per plant and the leaf area in two – and three-year-old seedlings. A beneficial and significant effect of mulching on these parameters was found in the third year of cultivation. A significantly positive effect of mulching on the mite gathering density was recorded in the second year of the nursery cultivation. However, both of the experimental factors had a positive effect on the occurrence of those arthropods in the third year of the study. Oribatid mites were the most numerous mite order and they were found in the greatest density on plots where mulching had been applied. Fertilisation and mulching increased the Oribatida/Actinedida ratio, which may indicate an improvement of the biological balance in the soil environment.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/1; 1057-1069
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of biostimulant application in containerized Eucalyptus globulus Labill. seedlings after transplanting
    Autorzy:
    Ozyhar, T.
    Mughini, G.
    Marchi, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2077660.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    foliar treatment
    forest nursery
    soil drench
    reforestation
    forest ecology
    Opis:
    The use of biostimulants (amino acid containing protein hydrolysate) in forestry field has re- ceived much less attention so far than in agriculture. Promising evidences were reported in literature with useful application for nursery activities, stimulating early growth and reducing transplanting stress. This study investigates the potential benefits induced by an amino acid-based animal-derived protein hydro- lysate biostimulant (Siapton® by Isagro) in containerized Eucalyptus globulus seedlings following transplant- ing. Foliar and soil drench applications were applied using two different concentrations each (2.5 ml.l−1 and 5.0 ml.l−1 for foliar, 10 ml.l−1 and 20 ml.l−1 for soil). Measures on seedling height, apical shot formation, total aboveground (dry weight of leaves and stem) and belowground biomass (dry weight of roots) 120 days after transplanting were made to quantify the effect on growth. The contrasts analysis on results revealed a positive effect of the biostimulant on many of the measured parameters, especially with foliar application using the lowest concentration (2.5 ml.l−1). The foliar application was overall suggested as more efficient than soil drench also allowing lower inputs (i.e. biostimulant quantity). The main consequence of the treatment was an increased biomass allocation in the stem (above ground biomass) due to a stimu- lated leaves production which might suggest an increased photosynthetic activity and growth. Conversely no influence was detectable on total height of seedlings neither on the collar diameter. The biostimulant treatment on containerized Eucalyptus globulus positively influenced some features of seedlings’ growth after transplanting and the use of biostimulant with foliar application during the hardening phase in the nursery, appears to be a promising technique to potentially improve seedling growth after transplanting. An inter- esting impact from application of biostimulant on biomass accumulation following transplanting was here demonstrated. Anyway, further research to verify the results on different tree species as well as under open field conditions is envisioned.
    Źródło:
    Dendrobiology; 2019, 82; 17-23
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena parametrów eksploatacyjno-ekonomicznych wyorywacza szkółkarskiego SR 2
    Assessment of operating and economical parameters of the SR 2 plough for nursery uses
    Autorzy:
    Słowiński, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/286423.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Inżynierii Rolniczej
    Tematy:
    szkółkarstwo leśne
    wyorywacz
    koszty wyorywania
    forest nursery
    plough
    ploughing costs
    Opis:
    W pracy przedstawiono metodę pomiaru parametrów eksploatacyjnych maszyn szkółkarskich z wykorzystaniem dwóch aparatów cyfrowych wyposażonych w kamery wideo oraz bezpośrednich pomiarów. W czasie analizy ilościowej odtwarzano film w zwolnionym tempie i mierzono długość trwania poszczególnych faz pracy agregatu. Praca zawiera wyniki pomiarów parametrów eksploatacyjnych wyorywacza szkółkarskiego SR 2 firmy Egedal. Korzystając z wyników badań przeprowadzono analizę kosztów wyorywania trzech gatunków leśnych - buka, jodły i świerka.
    A method of measuring operating parameters of nursery machines with the use of two digital cameras equipped with video cameras and indirect measures was presented in the study. During the quantitative analysis the film was recorded in a slow motion and the length of particular stages of an aggregate work were measured. The study includes the results of measures of the SR 2 plough operating parameters used in a nursery, the producer of which is Egedal. Using the research results, the analysis of ploughing costs of three forest cultivars - beech, fir and spruce was carried out.
    Źródło:
    Inżynieria Rolnicza; 2011, R. 15, nr 6, 6; 197-205
    1429-7264
    Pojawia się w:
    Inżynieria Rolnicza
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Use of composted sludge and forest ectohumus to enrich soil in two - and three-year cultivation of scots pine in a forest nursery
    Autorzy:
    Rolbiecki, S.
    Klimek, A.
    Rolbiecki, R.
    Figas, A.
    Ptach, W.
    Gackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/101590.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    forest nursery
    Scots pine
    ectohumus
    reintroduction of soil fauna
    Acari
    Opis:
    This study examined the effect of fertilisation with compost prepared from hygienised sludge with an addition of pine-tree bark and mulching with fresh forest ectohumus on selected growth parameters for two - and three-year-old Scots pine trees and on the incidence of mites (Acari) in the soil. The experiment was carried out in 2009-2010 in the Białe Błota forest nursery (Bydgoszcz Forest District) on proper rusty soil. The entire area of the experiment was irrigated with a stationary sprinkler. Organic fertilisation with compost prepared from hygienised sludge with an addition of pine-tree bark resulted in a significant increase in the plant height and the diameter of the root neck in two-year-old pine trees. The effect of mulching on these parameters was not significant. The synergistic effect of the factors on the plant height and the diameter of the root neck was not significant. Organic fertilisation significantly increased the height of 3-year-old pine trees, whereas it did not have a significant effect on the root neck diameter. Mulching increased the plant height significantly, but no statistical effect on the diameter of the root neck was demonstrated. Although no significant interaction of either experimental factors in their effect on the plant height and the diameter in the root neck was observed, the parameters tended to increase in the experimental option, which included organic fertilisation and mulching. Mulching had a significant effect on the presence of soil mites, especially oribatid mites (Oribatida). Their density increased greatly after the procedure. This growth, as well as an increase in the ratio of Oribatida to Actinedida could be a sign of improvement of the biological balance of the soils under study and their biological activity.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/1; 1117-1128
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Importance of investigations carried out by Professor Bolesław Suszka in population genetics of forest trees
    Autorzy:
    Sabor, J
    Powiązania:
    https://bibliotekanauki.pl/articles/41481.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    selection programme
    forestry
    gene bank
    selection breeding
    forest nursery
    plant genetics
    Suszka Boleslaw
    forest tree
    population genetics
    Opis:
    Modern forest selection programs concern natural and protected populations of trees characterized by a great genetic variability and also production stands frequently deformed by human activity. In the latter, artificial regeneration is prevailing. Forest nurseries working in the organizational structures of State Forests can guarantee the proper provenance (genotype)of seeds and the quality of seedlings obtained from them. The condition, however, is a close uniformity in the conservation of forest gene resources, and selection breeding of forest trees. The success of the program depends also on the development of modern infrastructure for forest nurseries and applied technologies. The latter task was the field of activity of Professor Bolesław Suszka, Ph.D., and his many-year research and organizational and didactic activity in Poland and abroad. The methods in long-term storage and their pretreatment in case of dormant seeds, developed by Professor Suszka, created the theoretical and practical basis for the conservation of forest gene resources not only in Poland.
    Źródło:
    Dendrobiology; 2002, 47 Supplement
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Genetic identification of fungi colonising seedlings of the Scots pine (Pinus sylvestris L.) in the forest nursery in Korenevka (Belarus)
    Autorzy:
    Baranov, O.Y.
    Oszako, T.
    Nowakowska, J.A.
    Panteleev, S.V.
    Powiązania:
    https://bibliotekanauki.pl/articles/38622.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    genetic identification
    fungi
    seedling
    Scotch pine
    Pinus sylvestris
    forest nursery
    molecular identification
    pathogenic fungi
    mycorrhizal fungi
    Korenevka village
    Belorussia
    Opis:
    DNA amplification was investigated in order to determine fungal species present in the Koronevka forest nursery (eastern part of Belarus). For this purpose, needles and roots of Scots pine (Pinus sylvestris L.) seedlings as well as soil collected around roots were examined for ITS1– 5.8S RNA-ITS2 region sequences and compared with GenBank data. DNA analysis of seedlings microflora and soil samples allowed identification of twelve different species of fungi. Among these Cladosporium herbarum Link, Davidiella tassiana Crous and U. Braun, Alternaria alternata Nees and Cryptococcus pinus Vuill. were often found in symptomatic needles. Pathogenic fungal species were detected in 57% of shrunken needles. Examination of DNA extracted from seedling roots revealed occurrence of Wilcoxina mikolae Chin S. Yang and Korf, C. herbarum, and A. alternata. In soil samples there were identified fungi of the same species, with predominance of mycorrhizal fungus W. mikolae (in 100% of samples) and C. pinus (in 20% of samples). The results demonstrated usefulness of molecular markers for the detection and identification of fungi.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2010, 52, 1
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ podcinania korzeni i nawożenia na cechy biometryczne dwuletnich sadzonek buka zwyczajnego (Fagus sylvatica L.)
    Effects of root pruning and fertilization on biometric traits of 2-year-old seedlings of European beech (Fagus sylvatica L.)
    Autorzy:
    Kasprzyk, W.
    Jastrzębowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1294969.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    szkolkarstwo lesne
    drzewa lesne
    buk zwyczajny
    Fagus sylvatica
    sadzonki dwuletnie
    podcinanie korzeni
    nawozenie
    cechy biometryczne
    root pruning
    fertilization
    European beech
    forest nursery
    Opis:
    The aim of this study was to examine the effects of pruning the root system and different doses of nitrogen fertilization on the height and root collar diameter of 2-year-old beech seedlings (Fagus sylvatica L.). This research was conducted in the forest nursery Muchów (Jawor Forest District, regional directorate of State Forests in Wrocław) and two different pruning treatments (no pruning and at 12 cm depth) and nitrogen fertilization doses (25 and 50 kg×ha-1) were applied. Results from an ANOVA showed statistically significant differences between the two pruning treatments (p=0.000) as well as for the interaction of both treatment factors (p=0.019). Root collar diameter correlated with seedling height, both of which were significantly different for the two pruning treatments (p=0.000). No statistically significant impact by the nitrogen fertilization doses on seedling height could be observed (p=0.125). To conclude, we found that it is reasonable to reduce the doses of nitrogen fertilization to half the recommended amount, 25 kg×ha-1, if the root system is not pruned during the second growth year. Seedlings that do receive pruning should be fertilized using the recommended nitrogen doses.
    Źródło:
    Leśne Prace Badawcze; 2016, 77, 3
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Filtry biologiczne jako metoda ochrony siewek przed patogenami w szkółkach leśnych
    Slow Sand Filter as a method of protection forest plants against phytopathogens in forest nurseries
    Autorzy:
    Kubiak, K.
    Oszako, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/973901.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    biofilmy
    bakterie
    oznaczanie
    oczyszczanie wody
    filtrowanie
    filtry piaskowe
    leśnictwo szkółki leśne
    woda użytkowa
    forest nursery
    biofilm
    Slowa Sand Filter SSF)
    Phytophthora
    DNA isolation
    DGGE
    PCR
    Opis:
    Slow sand filtration (SSF) is a low−cost method of water disinfestation that can be used as an alternative method of water irrigation treatment in nursery to control water−borne phytopathogens. Slow sand filtration relies on physical, chemical and biological activity in controlling plant pathogens. In a SSF, the filter bed is constructed of a medium−sand with the area which can be colonised by microorganisms – biofilm. This sand media also presents a physical barrier to fungal, bacterial and oomycetes plant pathogens. In the forest nursery Kiejsze an experimental slow sand filter was constructed to study the structure of a bacterial community suppressive to plant pathogens. The total bacterial community of an experimental SSF was analyzed by denaturing gradient gel electrophoresis (DGGE) of partial 16S rRNA gene PCR products. Sequence analysis of DGGE bands from the SSF column indicated that a range of bacteria were present, among them similar to groups such as alfa−Proteobacteria, delta−Proteobacteria, beta−Proteobacteria, Planctomycetes, Actinobacteria, Firmicutes, Bacilli and an uncharacterized environmental clone. This study describes the characterization of the microbial community of SSFs used for the treatment of irrigation water in the forest nursery. Using of natural SSF filters and manipulation of microorganisms in the biofilm may be a more reproducible control method of plant pathogens in the future.
    Źródło:
    Sylwan; 2011, 155, 04; 228-235
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Klimatyczny bilans wodny okresów wegetacyjnych na szkółce leśnej Wyrchczadeczka w Beskidzie Śląskim
    Climatic water balance of vegetation seasons on Wyrchczadeczka forest nursey in Beskid Slaski Mountains
    Autorzy:
    Durło, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1016285.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Beskid Slaski
    Nadlesnictwo Wisla
    szkolka Wyrchczadeczka
    okres wegetacji
    bilans wodny
    warunki klimatyczne
    szkolki lesne
    ewaporacja
    opady atmosferyczne
    lesnictwo
    climatic water balance
    forest nursery
    beskid śląski mts.
    Opis:
    This paper presents research results on analysis of climatic water balance in forest in Wyrchczadeczka forest nursery. The data comes from measurements from 1995−2004, which were collected at the meteorological station of the Department of Forest Climatology in Istebna. Detailed analysis concerned vegetation seasons. The lowest value of climatic water balance was August on average –27,1 mm·m–2. The highest value was July, 93,5 mm·m–2. Average value of index in whole vegetation period has totalled 275 mm·m–2. Despite big disparity of sum of precipitation and evaporation, climatic conditions promote of forest species vegetation in this terrain. In researched period, months presented with negative values of climatic water balances near 30% on average, it 70% cases of positive values remaining.
    Źródło:
    Sylwan; 2007, 151, 06; 53-61
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamika zbiorowiska grzybów mykoryzowych dębu szypułkowego w warunkach szkółki leśnej
    Temporal dynamics of ectomycorrhizal community of pedunculate oak seedlings during the first year of growth in bare-root forest nursery
    Autorzy:
    Pietras, M.
    Leski, T.
    Rudawska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989739.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    szkolki lesne
    drzewa lesne
    dab szypulkowy
    Quercus robur
    mikoryza
    ektomikoryza
    grzyby mikoryzowe
    grzyby ektomikoryzowe
    zbiorowiska grzybow
    dynamika zbiorowisk
    ectomycorrhiza
    quercus robur
    forest nursery
    its rdna
    Opis:
    Pedunculate oak (Quercus robur L.) is among the major managed tree species in Europe. In Poland, oak woodlands cover 6.9% of forest area. Furthermore, the significance of native oaks for Polish forestry is rising because the Polish National Forest Strategy predicts a growth of forest cover from 28.5% to 33% by year 2050 with the primary focus on the increase in contribution of deciduous tree species (from 22% to 33%). Therefore, for establishment of new stands, oak seedlings are grown for 2−3 years in forest nurseries. For optimal growth and development all European oak species are critically dependent on ectomycorrhizal fungi. The objective of this study was to describe the temporal dynamics of ectomycorrhizal community of pedunculate oak seedlings during the first year of growth in bare−root forest nursery. Experiment was conducted in forest nursery Miranowo (western Poland). The species structure of an ectomycorrhizal community was assessed every 10 or 15 days from May till October. Mycorrhizal colonization of tested seedlings changed from 0 to 85% depending of the time of sampling. Based on combination of morphological and molecular techniques, nine ectomycorrhizal fungal taxa were distinguished. The first ectomycorrhizas formed by Scleroderma verrucosum were detected 50 days after acorns sowing. In the next sampling days ectomycorrhizal community was dominated consecutively by Inocybe curvipes and Hebeloma sacchariolens (with maximum of abundance 60.98 and 75.55%, respectively). The obtained results were strongly influenced by the infection with the fungal biotroph Erysiphe alphitoides and resulted in a dramatic reduction in the abundance of living ectomycorrhizas down to 7.5%. Our investigation revealed that ectomycorrhizal fungal community of pedunculate oak seedlings during the first year of growth in bare−root forest nursery is rich in terms of number of species and a temporal changes are very dynamic. Thus we suggest, that in case of pedunculate oak artificial inoculation in general is not necessary for oaks seedlings in nursery practice.
    Źródło:
    Sylwan; 2015, 159, 10; 831-838
    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
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