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Wyświetlanie 1-14 z 14
Tytuł:
Dziwne zjawisko rozwidlania się pędów sosny
Udivitelnoe javlenie razvetvlenija pobegov sosny
Strange phenomena of furcation of pine shoots
Autorzy:
Karpinski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/813526.pdf
Data publikacji:
1971
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
sosna zwyczajna
pedy
rozwidlenia pedow
Źródło:
Sylwan; 1971, 115, 10
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ukorzenianie pędów sosny zwyczajnej (Pinus sylvestris L.) z zastosowaniem różnych substratów i stymulatorów
Razvitie kornevojj sistemy sosny obyknovennojj (Pinus sylvestris L.) s primeneniem raznykh substratov i stimuljatorov
Rooting of shoots of Scots pine (Pinus sylvestris L.) with application of various substrates and stimulators
Autorzy:
Barzdajn, W.
Powiązania:
https://bibliotekanauki.pl/articles/819825.pdf
Data publikacji:
1988
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
drzewa lesne
sosna zwyczajna
Pinus sylvestris
pedy drzew
ukorzenianie
stymulatory
podloza uprawowe
Źródło:
Sylwan; 1988, 132, 08
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola pędów syleptycznych w kształtowaniu ugałęzienia korony olszy czarnej (Alnus glutinosa (L.) GAERTN.)
The role of sylleptic shoots in shaping the black alder (Alnus glutinosa (L.) GAERTN.) crown architecture
Autorzy:
Dmyterko, E.
Powiązania:
https://bibliotekanauki.pl/articles/1026427.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
ugalezienie
korony drzew
lesnictwo
pedy syleptyczne
olsza czarna
Alnus glutinosa
drzewa lesne
sylleptic shoots
typical shoots
crown
black alder
Opis:
Black alder is a species capable of producing sylleptic shoots. This process is also detected in alders at older age. The objective of this work is to characterise sylleptic shoots and to determine the role they play in the formation of crown branching. The empirical material used in the experiment was collected in the north and south of Poland and considers both young and old trees.
Źródło:
Sylwan; 2003, 147, 06; 60-68
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:
Fusarium spp. na nadziemnych organach zamierających dębów - nowe zagrożenie?
Fusarium spp. on the above-ground organs of dying oaks – a new threat?
Autorzy:
Wit, M.
Sierota, Z.
Oszako, T.
Mirzwa-Mróz, E.
Wakuliński, W.
Powiązania:
https://bibliotekanauki.pl/articles/989848.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
fitopatologia lesna
dab
Quercus
zamieranie drzew
paki
pedy
grzyby
Fusarium
wystepowanie
zagrozenia roslin
oak decline
fusarium spp.
Opis:
Oak decline is insufficiently described problem. Declining oaks are in various age and the most commonly observed symptoms of the disease include growth inhibition and buds mortality. The dieback occurs periodically, mainly because of the impact of abiotic factors (drought, frost and the lowering of the groundwater level). In this complex phenomenon the biological factors, including numerous species of Chromista (Chromalveolata) and fungi play important role as well. The list of pathogens responsible for the dieback includes numerous species of Pythium and Phytophthora, as well as Biscogniauxia, Discula, Pleurophoma, Botryosphaeria and Diplodia. Among other organisms responsible for the oak decline are fungi belonging to Fusarium species. The aim of this study was to investigate the species composition of pathogens colonizing the dying oak buds including undeveloped or dying shoots obtained from Łomża, Rudka and Czarna Białostocka forest districts (eastern Poland). Sampling of symptomatic shoots of Quercus robur L. was performed in 2013, respecting different parts of tree crowns (top, central and bottom). Mycological material for analysis included mycelium growing on dying shoots after incubation in a chamber and tissue collected from symptomatic shoots and placed on PDA medium. For selected isolates of fungi the identification was confirmed by the PCR analysis using ITS1 and ITS4 primers. Among analyzed fungi Fusarium spp., Alternaria alternata, Cladosporium cladosporioides, Botryosphaeria quercuum and /em>Coniothyrium spp. required special attention. The Fusarium spp. group of fungi dominated with an average frequency of 32%. The molecular analysis revealed the presence of several species including Fusarium avenaceum, Cladosporium cladosporioides, Lophiostoma corticola and Nectria mauritiicola.
Źródło:
Sylwan; 2015, 159, 05; 403-410
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cieplne metody pomiaru przepływu wody w pędach roślin drzewiastych
Thermal methods of water flow measurements in stems of woody plants
Autorzy:
Zajączkowska, U.
Powiązania:
https://bibliotekanauki.pl/articles/973066.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
transport
ksylem
woda
pedy
pomiary
przepływ wody
rośliny drzewiaste
botanika leśna
leśnictwo
water flow measurement
water transport in tree
xylem
Opis:
Water flow in woody plant depends on many endogenous and environmental factors. Results of water flow measurements are frequently used in the research on physiology of woody plants and, ecophysiology to describe tree condition, water utilization and connected with these various theoretical and practical matters. Among the techniques of water flow measurements, the thermal methods are most widely used. It is because of easy installation of the system, possibility of continuous measurement with fast final results. The paper reviews various thermal methods of water flow measurements in woody plants with emphasis on the accuracy of measurements and potential sources of errors.
Źródło:
Sylwan; 2003, 147, 11; 38-46
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka pędu głównego dojrzałej olszy czarnej (Alnus glutinosa (L.) Gaertn.)
Main shoot characteristics in the mature black alder (Alnus glutinosa (L.) Gaertn.)
Autorzy:
Dmyterko, E.
Powiązania:
https://bibliotekanauki.pl/articles/1026549.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
przyrost wysokosci
lesnictwo
olsza czarna
pedy glowne
Alnus glutinosa
przyrosty roczne
drzewa lesne
main shoot
height increment
height growth rate
alnus glutinosa
Opis:
A comparative analysis was made for different measures of location and variation in height increment of the main stem of the mature black alder from the north−eastern region (N) and two southern regions (S1 and S2) of Poland. Correlation was found between annual height increment and tree age and height, as well as the number of the nodes along the shoot and the length of the internode. It was demonstrated that the trees producing long shoots in a given year would produce long shoots also in the successive years.
Źródło:
Sylwan; 2003, 147, 08; 11-18
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka pędu głównego i jego ugałęzienia u sosny zwyczajnej (Pinus sylvestris L.), rosnącej na terenie Nadleśnictwa Olkusz
Autorzy:
Bruchwald, A.
Dmyterko, E.
Dudzińska, M.
Kluziński, L.
Powiązania:
https://bibliotekanauki.pl/articles/1022202.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
ugalezienie
Nadlesnictwo Olkusz
sosna zwyczajna
lesnictwo
pedy glowne
Pinus sylvestris
drzewa lesne
pinus sylvestris
industrial emissions
height growth
number of branches
site index
Opis:
Decrease in emission of harmful gases and dusts in industrialised regions of Poland triggered improvement of forest health. Results of research dealing with pine stands in the Olkusz Forest District prove that. It was shown that number of side shoots growing out in the whorl rose up to 4−5. Trees developed height increment over two times higher than the model one and as a result height growth rate increased. Examined stands moved to the higher site index class during last 25 years. The need of further research on growth processes of trees being under anthropogenic influence was emphasised.
Źródło:
Sylwan; 2005, 149, 03; 3-11
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka pędu głównego dojrzałej brzozy brodawkowatej (Betula pendula Roth.)
Autorzy:
Dmyterko, E.
Bruchwald, A.
Powiązania:
https://bibliotekanauki.pl/articles/1022332.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
brzoza brodawkowata
ugalezienie
korony drzew
Betula pendula
lesnictwo
pedy glowne
drzewa lesne
main shoot
side shoot
internodes
common birch (betula pendula roth.)
Opis:
Research on length of the main shoot, number and length of internodes and side shoots was carried out on the basis of measurements on 50 birches. The paper describes average values, dispersion and correlation of investigated features. Obtained results are the first step in the attempt to build a model of Common birch crown development and to specify tree damage criteria.
Źródło:
Sylwan; 2005, 149, 08; 3-9
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie technik biologii molekularnej do detekcji Erysiphe alphitoides (Griffon & Maubl.) U. Braun and S. Takam. w organach roślinnych
Applying the molecular biology techniques to the detection of Erysiphe alphitoides (Griffon & Maubl.) U. Braun and S. Takam. in plant parts
Autorzy:
Roszak, R.
Baranowska, M.
Belka, M.
Behnke-Borowczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/979672.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
dab
Quercus
paki
liscie
pedy
maczniak prawdziwy debu
Erysiphe alphitoides
wykrywanie
techniki biologii molekularnej
oak powdery mildew
sessile oak
overwintering
fungal diseases
its
Opis:
Erysiphe alphitoides causes the most common disease of assimilation apparatus of oaks of different age. It is believed that the pathogen overwinters in buds of the host plant or in the cracks of the bark. The aim of the study was to search for the presence of E. alphitoides in buds, leaves, and wood of sessile oak shoots using molecular techniques. Two hypotheses have been tested: (i) oaks are infected by E. alphitoides, and (ii) the pathogen overwinters in the host plant buds. The samples used in the study were collected form sessile oak trees (Miradz Forest District; 52°41'23.197'N, 18°25'33.942'E) in 2017, and consisted of dormant buds (collected in May), young leaves (collected in June), leaves with visible symptoms of the disease (collected in August), shoot with sip and surface layers of wood (collected in December). Additional part of buds was collected in May 2018. The PCR reaction was carried out with primers specific for E. alphitoides and E. hypophylla. For species identification Sanger method was used. The resulting sequences were compared using BLAST algorithm with reference sequences deposited in the NCBI database. Sequences from isolates obtained from leaves showed 97−99% similarity to the reference sequence of E. alphitoides. Pathogen did not occur in the superficial layers of shoots and buds. As some studies show, at very low temperatures (below –20°C), the mycelium of the pathogen dies, therefore further study should be undertaken on wintering of the pathogen causing the powdery mildew disease on oaks. It also should be examined whether the pathogen overwinters in the form of bagnial spores produced in chasmothecia overwintering on leaves, in the leaf buds, or in bark cracks, and whether the wintering site of the pathogen is related to the age of trees and or to the stands where the trees grow.
Źródło:
Sylwan; 2019, 163, 09; 740-745
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ drzewostanu na strukturę wielkości jeżyny gruczołowatej (Rubus hirtus Waldst. & Kit. agg.) na obszarze dawnego rezerwatu "Dolina Łopusznej" w Gorczańskim Parku Narodowym
Effect of forest stands on the size structure of the blackberry (Rubus hirtus Waldst. & Kitt. agg.) in the former "Dolina Lopusznej" Reserve in the Gorce National Park
Autorzy:
Gazda, A.
Szywacz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1008898.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
runo lesne
krzewy
jezyna gruczolowata
Rubus hirtus
pedy
struktura wielkosci
czynniki siedliska
struktura drzewostanu
Gorczanski Park Narodowy
rubus hirtus
size structure
gorce national park
poland
Opis:
The studies were conducted in the Gorce National Park (49°32'N, 20°07'E). The fieldwork was carried out on 34 permanent research plots. It was demonstrated in the studies that stands had significant positive and negative effects on the Rubus hirtus population. With the increase in the total and mean basal areas, the number and length of shoots, percentage of area coverage and annual length increment of Rubus hirtus individuals also increased. There was also a significant dependence of the number of shoots and individuals of Rubus hirtus on the basal area of beech. No significant relationship was found between Rubus hirtus plants and basal areas of spruce and fir trees. Stand age was another important factor. A positive correlation was found between the stand age and length of shoots and the percentage of area covered by blackberries. The number of trees on sample plots is also associated with age. A negative correlation was found between the parameters of Rubus hirtus plants (the number and length of shoots per 5 m2 and the degree of coverage) and the number of trees on sample plots. As there was previously no significant break in the canopy of the natural forest growing in the 'Dolina Łopusznej' reserve, no significant dominance of Rubus hirtus in the forest floor was noted. Blackberries usually established short main shoots (up to 25 cm) which were not potentially capable of producing roots, and thereby progeny ramets. As a result, the area occupied by blackberries usually did not exceed 15−30%.
Źródło:
Sylwan; 2011, 155, 07; 500-506
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie struktury wielkości jeżyny gruczołowatej (Rubus hirtus Waldst. & Kitt. agg.) z populacji rosnących na glebach wykształconych na różnych podłożach geologicznych
Comparison of the size structure of the blackberry [Rubus hirtus Waldst. and Kitt. agg.] from the populations growing on the soils developed on different geological substrates
Autorzy:
Gazda, A.
Kochmańska-Bednarz, A.
Powiązania:
https://bibliotekanauki.pl/articles/1009443.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
botanika lesna
krzewy
populacje roslin
jezyna gruczolowata
Rubus hirtus
pedy
struktura wielkosci
struktura przestrzenna
czynniki siedliska
podloze geologiczne
population structure
size structure
rubus hirtus
bedrock type
soil type
Opis:
The objective of the paper was to determine the size structure of the canes and individuals of Rubus hirtus populations and compare them with regard to the type of soils developed on different geological substrates (granodiorite partially covered by boulders, weathered rocks, river sediments, loams and rock rubble for podzolic soil; limestone and conglomerate interlayers for humus−rich and brown rendzinas and on Carpathian flysh for acid brown soil). The mean Rubus hirtus density on all study sites significantly differed from each other. The highest ramet density (11 individuals/m2 ) was noted on the "Dolina Łopusznej" site, while individuals from the populations on the remaining study sites occurred locally in smaller or larger clusters. The shoots of Rubus hirtus growing on podzolic soils significantly differed from those growing on acid brown soil. Long shoots (over 50 cm) on all sites constituted only a few per cent. The Rubus hirtus populations on the "Szczoty" and "Dolina Łopusznej" sites established over 50 cm high shoots, potentially capable of producing roots with the probability of 0.14. Individuals producing a single the main primocane with the probability of over 0.7 were the most frequent. Less than 10% of the individuals which in the previous year produced at least one main shoot failed to establish new main shoots at all. The number of flowering/ fruiting individuals did not exceed 20% on none of the study sites. The studied populations produced a few new ramets. The results obtained from the research permit suggesting that the underlying bedrock is the primary, while light is the secondary, factor affecting the presence of Rubus hirtus plants. This species colonises areas where the stand canopy is broken even to a slight degree.
Źródło:
Sylwan; 2010, 154, 05; 347-355
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-14 z 14

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