Temat: Betula alba - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Wpływ potencjalnych zmian klimatycznych na zdolność konkurencyjną głównych gatunków drzew w Polsce
Impact of potential climate changes on competitive ability of main forest tree species in Poland
Autorzy:: Zajączkowski, J.
Brzeziecki, B.
Perzanowski, K.
Kozak, I.
Powiązania:: https://bibliotekanauki.pl/articles/991514.pdf
Data publikacji:: 2013
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: zmiany klimatyczne
oddzialywanie na rosliny
drzewa lesne
gatunki lasotworcze
jodla pospolita
Abies alba
olsza czarna
Alnus glutinosa
brzoza brodawkowata
Betula pendula
buk zwyczajny
Fagus sylvatica
jesion wyniosly
Fraxinus excelsior
swierk pospolity
Picea abies
sosna zwyczajna
Pinus sylvestris
dab szypulkowy
Quercus robur
konkurencyjnosc
climate change
forest gap model
growth multipliers
tree competition
Opis:: An influence of environmental changes upon forest tree species competition was studied for suggested scenario of environmental changes (3−4°C increase of monthly temperatures), 8 main tree species and 6 natural regions. For a synthetic assessment of the reaction of various species for thermal and higric parameters of the climate, the growth multipliers DDGF and SMGF were used. The main environmental factor influencing future growth of tree species in Poland will be water shortage due to increased evapotranspiration. Regional decrease of water sensitive species importance, eg. alder, spruce and birch, accompanied by country−scale expansion of highly competitive, late−successional species, eg. beech and hornbeam is expected.
Źródło:: Sylwan; 2013, 157, 04; 253-261
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Grzyby zasiedlające nasiona wybranych gatunków drzew leśnych
Fungi inhabiting seeds of selected forest tree species
Autorzy:: Król, E.D.
Machowicz-Stefaniak, Z.
Zimowska, B.
Abramczyk, B.A.
Zalewska, E.D.
Powiązania:: https://bibliotekanauki.pl/articles/973515.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: brzoza brodawkowata
Betula pendula
buk zwyczajny
Fagus sylvatica
Quercus robur
Quercus rubra
klon jawor
Acer pseudoplatanus
olsza czarna
Alnus glutinosa
Abies alba
modrzew europejski
Larix decidua
sosna zwyczajna
Pinus sylvestris
swierk pospolity
Picea abies
nasiona
wykaz gatunkow
leśnictwo
drzewa leśne
dąb szypułkowy
jodła pospolita
dąb czerwony
grzyby zasiedlające nasiona
pathogens
mycological analysis
coniferous trees
deciduous trees
fungal communities
Opis:: The seeds of forest trees usually transfer numerous fungi species, including pathogens, facultative parasites and saprotrophs. The aim of the present work was to determine qualitative and quantitative composition of fungi inhabiting the seeds of 10 trees species i.e.: birch (Betula pendula Roth.), beech (Fagus sylvatica L.), red oak (Quercus rubra L.), common oak (Quercus robur L.), sycamore maple (Acer pseudoplatanus L.), black alder (Alnus glutinosa Gaerth.), fir (Abies alba Mill.), European larch (Larix decidua Mill.), pine (Pinus sylvestris L.) and spruce (Picea abies (L.) H. Karst). The seed samples were obtained courtesy of 5 forest districts located in the south−eastern Poland. Mycological analysis was performed in the years 2012−2013. Each time, the study included 100 surface−disinfected seeds of particular plant species. As a result of the study about 2000 colonies of fungi representing 26 genera and above 39 species were isolated. The most frequently occurring species were: Fusarium spp., Penicillium spp., Alternaria alternata, Cladosporium cladosporioides, Trichoderma koningii, Epicoccum nigrum, Phoma spp. and Cylindrocarpon destructans. Moreover Discula spp., Phyllosticta spp., Pyrenochaeta spp., Rhizoctonia solani, Alternaria consortiale were obtained only from the seeds of deciduous trees while Truncatella angustata and Sphareopsis sapinea exclusively from the seeds of coniferous trees. The genus Fusarium was represented by 8 species and among them F. avenaceum, F. oxysporum and F. sporotrichioides dominated. Moreover Penicillium spp., Epicoccum nigrum, Trichoderma koningii, Botrytis cinerea, Cladosporium cladosporioides, Chaetomium globosum and Trichothecium roseum were commonly isolated while the other species of fungi were present in smaller numbers. Isolation of numerous fungi species which may cause mold of sowing material, seedling blight as well as leaves and needles spot, indicates their big threat for seeds during storage and for plants in the initial period of growth in a nursery. The obtained results show that the seeds, besides the infected soil, are a very important source of infection for young plants.
Źródło:: Sylwan; 2015, 159, 02; 135-141
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki