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    Wyświetlanie 1-9 z 9
    Tytuł:
    Diversity of spruce ectomycorrhizal morphotypes in four mature forest stands in Poland
    Autorzy:
    Karlinski, L
    Kieliszewska-Rokicka, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/41194.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Polska
    air pollution
    mature forest stand
    forest stand
    ectomycorrhizal diversity
    Picea abies
    Norway spruce
    forest type
    environment pollution
    soil
    Opis:
    Ectomycorrhizal communities structure of Norway spruce (Picea abies L. (Karst.) was studied in four mature forest stands: Brenna, Salmopol, Zwierzyniec and Mirachowo. Morphological classification was used to distinguish the major mycorrhizal types associated with spruce in different forest types. Three of the foreststands were located within the natural geographical range of Norway spruce (Brenna, Salmopol, Zwierzyniec) and one (Mirachowo) was located in so-called “spruce-less zone”. The sites differed in terms of environmental pollution. The mountain sites (Brenna, Salmopol) were characterized by relatively high levels of air pollution. The upland forest stand (Zwierzyniec), located in the southeastern part of Poland, was affected by a moderate pollution. The lowland stand in northern Poland (Mirachowo) was free from direct impact of anthropogenic pollution. The level of mycorrhizal colonization was 100% at all the study sites. Thirty-seven mycorrhizal morphotypes were distinguished in total. The number of ectomycorrhizal morphotypes varied between sites from 12 in Salmopol to 28 in Zwierzyniec. From one to three dominant morphotypes were found at the study site. Site-specific morhotypes were also observed. The frequency of mycorrhizal morphotypes differed between the forest stands.
    Źródło:
    Dendrobiology; 2004, 51; 25-35
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Variability in morphology of Microsphaera alphitoides Griffon et Maubl. in Poland
    Autorzy:
    Ufnalski, K
    Przybyl, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/56970.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    variability
    powdery mildew
    young tree
    Polska
    forest stand
    nursery seedling
    morphology
    leaf
    Microsphaera alphitoides
    taxonomy
    Quercus robur
    oak
    Quercus petraea
    Opis:
    The aim of this study was to verify descriptions of the morphology of the fungus responsible for powdery mildew on oak leaves of nursery seedlings and of young trees in forest stands. Infected, fully developed leaves from apical parts of stems of Quercus robur or Q. petraea were collected in two national parks and in six forest districts in Poland. The taxonomic characteres of all specimens were generally consistent with those given in keys for Microsphaera alphitoides. However, the limoniform shape of conidia, characteristic of two sites (nurseries), has not been found in available synopses. Limoniform conidia were significantly longer and wider than others. Agreat variety of forms of mycelium on leaves were observed. The mycelium appeared in three forms: (1) floccose or felted oval patches (always with yellow or brown discoloration), (2) faveolate oval patches (often with yellow or brown discoloration), and (3) felted or mealy mycelium along veins (rarely with discoloration). Mycelium without limoniform conidia appeared in all forms, while mycelium with limoniform conidia appeared only in the form of patches, always causing leaf discoloration.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2004, 73, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Links between root carbohydrates and seasonal pattern of soil microbial activity of diverse European populations of Pinus sylvestris grown in a provenance plantation
    Autorzy:
    Kieliszewska-Rokicka, B
    Oleksyn, J.
    Zytkowiak, R.
    Reich, P.B.
    Powiązania:
    https://bibliotekanauki.pl/articles/56717.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Scotch pine
    soil dehydrogenase
    Polska
    microbial activity
    forest stand
    European population
    carbohydrate
    soluble carbohydrate
    population
    soil microorganism
    root
    mineral soil
    starch
    seasonal pattern
    soil
    Pinus sylvestris
    plantation
    dehydrogenase activity
    aboveground biomass
    Opis:
    Activity of soil dehydrogenase (DHA) was measured in the mineral soil in a forest stand of 15 to 16-year-old Scots pine (Pinus sylvestris L.) from geographically diverse populations, as an indicator of biological activity of soil microorganisms, in a provenance experiment in Poland. The pine populations originated from six European countries (Sweden, Russia, Latvia, Poland, Germany, France) and differed widely in aboveground biomass and productivity. Soil DHA during two growing seasons showed pronounced seasonal variability, which was significantly related to the fine root concentration of nonstructural carbohydrates. Higher DHA was found in soil under canopies of the central and southern European populations than in those from more northern parts of the Scots pine range. Significant positive correlation between soil DHA and aboveground tree biomass suggest that these patterns most likely resulted from differences in carbon dynamics and productivity among populations.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2003, 72, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Quality of Japanese larch stands in Poland
    Autorzy:
    Filipiak, M
    Pilarek, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/41203.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    forest productivity
    forestry
    stand
    Larix kaempferi
    Polska
    acclimation
    Japanese larch
    Opis:
    The quality of 39 Japanese larch stands, mainly in north-western Poland, was characterized. On the basis of the presented results it can be concluded that properly managed forest stands of Japanese larch can compete in trees quality with stands of native larches. The alien species is more susceptible to a lower stand density and exposure to strong winds. This is no correlation between forest stand quality and growth dynamics.
    Źródło:
    Dendrobiology; 2003, 49
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The stand structure and natural regeneration of Abies alba Mill. in reserves on the northern margin of its distribution in SW Poland
    Autorzy:
    Szymura, T H
    Powiązania:
    https://bibliotekanauki.pl/articles/41400.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    stand structure
    natural regeneration
    Abies alba
    silver fir
    Wal Trzebnicki area
    distribution
    seedling density
    stand type
    Abietetum polonicum
    mixed forest
    population structure
    safe site
    Polska
    Opis:
    The silver fir (Abies alba Mill.) in the area of Wał Trzebnicki is at the northern limit of its distribution in western Poland. This study was performed in three nature reserves with protected silver fir populations. The stands in these reserves were mixed, with complex spatial structure and abundant tree regeneration. The proportion of fir in stands was around 16% of DBHS, the age of trees reached around 130 years. The silver fir occurs mainly in the sapling stage, whereas the number of seedlings was very low. The results of this study show the influence of forest floor vegetation as well as litter type on the emergence of fir seedlings. The seedlings density was compared with the results of other studies from different geographical areas and stands type in Poland.
    Źródło:
    Dendrobiology; 2007, 57; 55-62
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Soil acid phosphomonoesterase activity and phosphorus forms in ancient and post-agricultural black alder [Alnus glutinosa (L.) Gaertn.] woodlands
    Autorzy:
    Orczewska, A.
    Piotrowska, A.
    Lemanowicz, J
    Powiązania:
    https://bibliotekanauki.pl/articles/57312.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    soil
    acid phosphomonoesterase
    acid phosphatase activity
    phosphorus form
    ancient forest plant species
    tree stand
    forest soil
    black alder
    Alnus glutinosa
    woodland
    Polska
    post-agricultural soil
    Opis:
    Black alder, an N-fixing tree is considered to accelerate the availability of phosphorus in soils due to the increased production of phosphatase enzymes, which are responsible for the P release from the litter. Acid phosphatase activity plays a pivotal role in organic P mineralization in forest soils and in making P available to plants. In order to check whether Alnus glutinosa stimulates acid phosphomonoesterase (PHACID) activity, we compared enzyme activities, total P concentration (PTOT), plant-available P (PAVAIL), organic P (PORG) and inorganic P (PINORG), and organic matter content in 27 ancient and 27 post-agricultural alder woods (the latter ones representing different age classes: 11-20, 21-40 and 41-60 years) of soil samples taken from the litter and the mineral layers. Phosphomonoesterase activity, organic matter, PTOT, PINORG and PORG concentrations were significantly higher in ancient alder woods than in the soils of post-agricultural forests. Significant differences in the acid phosphatase activity, organic matter and PAVAIL concentration were noted between the litter and mineral layers within the same forest type. In recent stands the amount of organic matter and phosphatase activity increased significantly with the age of alder stands, although only in the mineral layer of their soils. Phosphomonoesterase activity, organic matter and PAVAIL content were higher in a litter layer and decreased significantly at a mineral depth of the soil. The acid phosphatase activity was significantly correlated with organic matter content in both ancient and recent stands. There was no significant relationship between PHACID activity and any P forms.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2012, 81, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Disease symptoms and their frequency of occurrence in sycamores [Acer pseudoplatanus L.] in the Rymanow Forest Unit stands
    Symptomy chorobowe i nasilenie ich wystepowania u jaworow [Acer pseudoplatanus L.] w drzewostanach Nadlesnictwa Rymanow
    Autorzy:
    Kowalski, T
    Materniak, P
    Powiązania:
    https://bibliotekanauki.pl/articles/28108.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    plant disease
    Acer pseudoplatanus
    Polska
    disease symptom
    fungi
    stand
    symptom frequency
    Rymanow Forest Unit
    tree
    fungal disease
    sycamore
    Opis:
    Field studies were conducted in the years 2003 - 2005 in the Rymanów Forest Unit in 13 stands aged between 40 to 100 years, which had 10% - 60% of the sycamore in their species composition. They grew on a mountain forest site (12 stands) and mountain riparian forest (1 stand). In each of them 100 trees were examined, growing next to each other in the central part of the stands. The disease symptoms, on trunks and in the crown area of each tree, and their intensity were determined according to the predefined symptomatic - developmental code. More than 80 fragments of wood and bark were collected from trunks of living and dead trees with local cankers and bark peeling off exposing wood. From the samples, 798 isolations were made on 2% malt - agar medium. The examined sycamores in the Rymanów Forest Unit showed a large variation in the disease symptoms and their occurrence frequency. Among 1300 analyzed trees, only 13.7% did not show external, macroscopic disease symptoms. There was a relatively large share of dead trees (15.0%), which in individual stands ranged 4.0 - 32.0%. The most frequent symptoms in crowns were as follows: top dying (6.3% trees), entire branch dying (16.2%) or only their tops (9.6%), crown thinning (19.4%), leaf atrophy (10.8%) and leaf discoloration (11.6%). On sycamores trunks, the following symptoms were found: plate-like and strip-like necrosis of bark that was breaking, falling off and exposing wood (8.6% trees), local bark cankers (14.7%), among which healed ones dominated (10.3%), bark cracks (14.3%) and tree cancer symptoms (3.8%). Bark necrosis and wood exposure formed 1.5 times more frequently on the northern and western side than on the southern and eastern side, bark cracks appeared most frequently on the southern trunk side. On the cross sections of sycamore trunks, the following symptoms were found predominantly: T-shaped discolorations which appeared in the place of local healed cankers, dead wood regions in the places of local unhealed cankers and widespread bark cankers, sometimes taking the form of a sector reaching the part near the pith, and greyish - green or greenish - brown wood discolorations in the form of numerous stains, especially in the trunk periphery part. On the trunks of 184 (14.2%) sycamores, perithecia of Nectria coccinea were present. They formed in the area of cankers on bark and exposed wood alike. Fruiting bodies of Nectria cinnabarina, Eutypa acharii, Melanomma pulvis-pyrius, conidiomata of Cytospora ambiens, Aposphaeria cf. pulviscula and conidiomata of Stegonsporium pyriforme occurred sporadically. From wood, the following were isolated predominantly: Basidiomycetes sp. 1, Chalara sp. 1, Cadophora fastigiata, Nectria cinnabarina and Cytospora ambiens. Chalara sp.1, with its morphological features, best matched the anamorph of Ceratocystis coerulescens sensu lato.
    Badania terenowe prowadzono w latach 2003 - 2005 w Nadl. Rymanów w 13 drzewostanach w wieku 40 do 100 lat, w których udział jaworu w składzie gatunkowym wynosił od 10 do 60%. Rosły one na siedlisku lasu górskiego (12 drzewostanów) i na lesie łęgowym górskim (1 drzewostan). W każdym z nich poddano analizie 100 rosnących obok siebie drzew w środkowej części drzewostanu. Określono objawy chorobowe na pniu i w obrębie korony każdego drzewa oraz ich nasilenie według uprzednio przygotowanego kodu symptomologiczno-rozwojowego. Pobrano ponad 80 fragmentów kory i drewna z pni martwych drzew oraz drzew żywych wykazujących objawy lokalnych nekroz oraz złuszczania kory odsłaniającego drewno, z których wykonano 798 izolacji na 2% pożywkę agarowo-maltozową. Badane jawory w Nadleśnictwie Rymanów wykazywały duże zróżnicowanie symptomów chorobowych i nasilenia ich występowania. Spośród poddanych analizie 1300 drzew tylko 13,7% nie wykazywało zewnętrznych makroskopowych objawów chorobowych. Stosunkowo duży był udział drzew obumarłych (15,0%), który wynosił w poszczególnych drzewostanach od 4,0 do 32,0%. Do najczęstszych symptomów w koronach drzew należały: zamieranie wierzchołka (6,3% drzew), zamieranie całych gałęzi (16,2%) lub ich szczytów (9,6%), przerzedzenie korony (19,4%), atrofia liści (10,8%) i przebarwienie liści (11,6%). Na pniach jaworów stwierdzano: placowatą lub pasmową martwicę kory, która pękała, wykruszała się i odsłaniała drewno (8,6% drzew), lokalne nekrozy kory (14,7%), wśród których dominowały nekrozy zabliźnione (10,3%), podłużne spękania kory (14,3%) oraz objawy raka drzewnego (3,8%). Do martwicy kory i odsłaniania drewna ok. 1,5 razy częściej dochodziło od strony północnej i zachodniej niż południowej i wschodniej, spękania kory występowały najczęściej od strony południowej pni. Na przekrojach poprzecznych pni jaworów najczęściej występowały: przebarwienia w kształcie litery „T”, występujące w miejscu lokalnych zabliźnionych nekroz, obumarłe strefy drewna w miejscu lokalnych niezabliźnionych nekroz i rozległych martwic kory, przyjmujące niekiedy formę sektora sięgającego części przyrdzeniowej, i szarozielone lub zielonobrunatne przebarwienia drewna w postaci licznych plam, zwłaszcza w części przyobwodowej pnia. Na pniach 184 (14,2%) jaworów obecne były peritecja Nectria coccinea. Wykształcały się one w obrębie nekroz, zarówno na korze jak i na odsłoniętym drewnie. Sporadycznie występowały owocniki Nectria cinnabarina, Eutypa acharii, Melanoma pulvis-pyrius oraz conidiomata Cytospora ambiens, Aposphaeria cf. pulviscula i Stegonsporium pyriforme. Z drewna najliczniej izolowano: Nectria coccinea, Basidiomycetes sp. 1, Chalara sp.l, Mollisia sp., Cadophora fastigiata, Nectria cinnabarina i Cytospora ambiens. Chalara sp.l swymi cechami morfologicznymi najbardziej odpowiadała anamorfie Ceratocystis coerulescens sensu lato.
    Źródło:
    Acta Agrobotanica; 2007, 60, 1
    0065-0951
    2300-357X
    Pojawia się w:
    Acta Agrobotanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Teleconnection of 23 modern chronologies of Quercus robur and Q. petraea from Poland
    Autorzy:
    Ufnalski, K
    Powiązania:
    https://bibliotekanauki.pl/articles/41667.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Polska
    Quercus robur
    Quercus petraea
    dendrochronology
    English oak
    oak stand
    forest area
    sessile oak
    downy oak
    Quercus pubescens
    climatic factor
    Opis:
    Quercus robur and Q. petraea are important forest-forming species in Europe. Q. robur is believed to require more fertile soils, to be more tolerant to low temperatures and more sensitive to oak decline than Q. petraea. Thus chronologies of the two species from nearby localities were hypothesised to differ more strongly between species than between localities. Wood cores were collected on 23 research plots in 2 national parks and 12 forest districts. In each locality two plots (one with Q. robur and one with Q. petraea) were established in forest stands of similar age at similar site conditions wherever possible. Similarity between chronologies was assessed by the test of parallel agreement (Gleichlaufigkeit), Pearson correlation coefficients, and principal components. The plots were grouped by the Ward clustering method and according to 1st and 2nd principal components. The first 2 methods segregated chronologies nearly ideally into pairs of species from the same forest district, indicating that the chronologies differ between forest districts but not between species. Chronologies clustered in 2 large groups: northern and southern (on the basis of correlation) or northeastern and southwestern (on the basis of parallel agreement). Principal components also distinguished northeastern and southwestern chronologies, but less clearly. The results suggest that differences in climatic and soil requirements between the 2 oak species are generally too small in comparison with the differences caused by climatic factors.
    Źródło:
    Dendrobiology; 2006, 55; 51-56
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sustainability of Picea abies of Istebna provenance in Dupniański Stream catchment as dependent on stand age class
    Autorzy:
    Malek, S
    Powiązania:
    https://bibliotekanauki.pl/articles/41396.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    international conference
    Europe
    forest ecosystem
    plant breeding
    tree
    Norway spruce
    Picea abies
    sustainability
    provenance
    Dupnianski Stream catchment
    stand age class
    Silesian Beskids Mountains
    Polska
    Opis:
    Ecochemical indexes such as soil buffer reaction (pH), acid neutralising capacity (ANCaq), alkalinity (ALK), soil acidity (Ma%), basic cation saturation (BS), and molar ratios Ca:Al and BC:Al were used to study the sustainability of Norway spruce of Istebna provenance in stands differing in age class. The data were obtained from the research conducted in the Dupniański Stream catchment in the Silesian Beskid Mts. (Poland). The acid neutralising capacity, alkalinity, and soil acidity were found to depend on the age of spruce stands. The increased acidification of deposits was due to the presence of sulphate and nitrate ions which were washed out from the surface of plants. Passing through the canopy caused a decrease in the acid neutralising capacity, alkalinity, and base cation saturation, and an increase in the soil acidity, with the values being dependent on stand age. The soil acid reaction shifted to the range of the aluminium and iron bufferness, but the Ca:Al and BC:Al ratios were still above the level when aluminium stress is probable. The washout of the basic cations beyond the spruce root system, and the low levels of exchangeable Mg2+ and Ca2+, basic cation saturation of soil water, and effective base saturation of soil may affect the vitality and health of spruce stands in the future. To maintain the sustainability of Norway spruce stands of Istebna provenance in the Dupniański Stream catchment it is necessary to increase the retention of basic elements, especially Mg2+ and Ca2+, by means of stand conversion or fertilisation.
    Źródło:
    Dendrobiology; 2009, 61 Supplement
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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