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Wyświetlanie 1-3 z 3
Tytuł:
Oddziaływanie wyładowań atmosferycznych na drzewa
The lightning influence on trees
Autorzy:
Bednarz, B.
Powiązania:
https://bibliotekanauki.pl/articles/1024197.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
uszkodzenia drzew
oddzialywanie na rosliny
uszkodzenia korzeni
lesnictwo
wyladowania atmosferyczne
drzewa
zamieranie drzew
lightning
trees weakness
roots damages
insects
fungi
Opis:
The article presents the review of information about physiological and mechanical injuries of trees strocked by lightning. The weakened trees synthesis less insect repellents or toxic substances than another ones and thereby are more susceptible to insects attack. Lightning trees suffer from water shortage, because therir roots are usually also damaged by lightning.
Źródło:
Sylwan; 2004, 148, 07; 31-36
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ ściółki sosnowej i dębowej na wzrost sadzonek sosny i zbiorowiska grzybów mikoryzowych w warunkach szkółki leśnej
Influence of pine and oak litter on growth and mycorrhizal community structure of Scots pine seedlings in bare-root nursery condition
Autorzy:
Leski, T.
Rudawska, M.
Aucina, A.
Skridaila, A.
Riepsas, E.
Pietras, M.
Powiązania:
https://bibliotekanauki.pl/articles/1009673.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
sciolka sosnowa
grzyby mikoryzowe
gleby
wzrost roslin
sadzonki
szkolki lesne
sosna zwyczajna
lesnictwo
sciolkowanie gleby
sciolka debowa
Pinus sylvestris
drzewa lesne
forest litter
scots pine seedlings
ectendomycorrhiza
ectomycorrhiza
bare−roots nursery
Opis:
The effects of pine and oak forest litter on mycorrhizal status of 2−year−old Pinus sylvestris L. seedlings grown in a bare−root nursery was investigated. The research was carried out in the nursery of Vilnius University Botanical Garden in Lithuania. Ectomycorrhizal communities were assessed by a combination of morphological and molecular techniques. Statistical analysis revealed significant effect of litter treatment on some growth parameters of seedlings: seedling height, needle dry weight and total seedling weight. The survival rate of seedlings was significantly highest for oak litter, intermediate for pine litter, and lowest for control soil. Pine seedlings were colonized by indigenous ecto− and ectendomycorrhizal symbionts. Seven mycorrhizal species (Suillus luteus, S. variegatus, Wilcoxina mikolae, Tuber sp., Tomentella sp., Cenococcum geophilum, Amphinema byssoides) were distinguished on the roots of pine seedlings as well as one ectomycorrhizal symbiont not identified to species level. In total, 6 mycorrhizal types were found in control soil, 5 in pine litter, and 8 in oak litter. Suilloid (S. luteus and S. variegatus) and Wilcoxina mycorrhizae were dominant on tested seedlings, irrespective of litter addition. Seedlings grown in untreated nursery soil were 34% colonized by W. mikolae, while suilloid mycorrhizae were dominant after litter treatment (81% in pine litter and 63% in oak litter). We may conclude that suilloid mycorrhizae are better adapted to the conditions related to litter addition than W. mikolae.
Źródło:
Sylwan; 2009, 153, 10; 675-683
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Akumulacja i rozmieszczenie składników odżywczych w pędach Vaccinium vitis-idaea L. i Vaccinium myrtillus L.
Accumulation and distribution of nutrients in shoots of Vaccinium vitis-idaea L. and Vaccinium myrtillus L.
Autorzy:
Parzych, A.
Powiązania:
https://bibliotekanauki.pl/articles/989673.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
krzewy lesne
borowka czarna
Vaccinium myrtillus
borowka brusznica
Vaccinium vitis-idaea
liscie
lodygi
korzenie
azot
potas
magnez
wapn
cynk
miedz
mangan
zelazo
zawartosc makroelementow
bioakumulacja
translokacja pierwiastkow
wspolczynnik translokacji
cowberry
bilberry
leaves
stems
roots
translocation factor
Opis:
The paper presents the analysis of the macro− and microelements content in the leaves, stems and roots of Vaccinium myrtillus and Vaccinium vitis−idaea as well as in the surface genetic horizons of the soils of the Słowiński National Park (SNP). The cumulative properties and translocation coefficients were characterized as well as translocation coefficients of nutritional components in bilberry sprouts. The nitrogen was determined by Kjeldahl's method. The contents of K, Mg, Ca, Zn, Cu, Mn, and Fe by atomic absorption spectrometry after digestion in the mixture of 65% HNO3 and 30% H2O2. Organic and humus horizons of the tested soils represented the acidic reaction and diversified quantity of organic matter. The content of basic macro components in the soils of the SNP was very low. Concentration of Zn, Cu, Mn and Fe in the soils remained within the limits of geochemical background without showing any pollution with these elements. Chemical composition of bilberry sprouts was diversified depending on species, fragment of the sprout and the study plot. Nitrogen content in leaves and stems of V. myrtillus was much higher than in the case of V. vitis−idaea. The roots of both species of bilberries accumulated similar quantities of N, which is indicated by the values of the bioaccumulation coefficient and the lack of statistical diversity. All analyzed macro− and microcomponents were accumulated in the highest quantity in the leaves and stems of V. myrtillus, which represented, without any doubt, higher demand of this species for nutritional components. The roots of V. vitis−idaea accumulated higher quantities of Mg, Ca and Zn, while the stems of bilberry accumulated twice as much manganese (1198.3 mg/kg) than the stems of cowberry (561.2 mg/kg). The test results show excessive accumulation of Mn by sprouts of V. myrtillus. In the case of the examined species, the highest mobility was characteristic for N and K (in the relationship leaves/stems) and Ca, Mg, Mn, K and Zn (in the relationship stems/roots). Fe and Cu were characterized by the lowest mobility in bilberry tissues. Significant differences in the content of N (p<0.001) and Mg (p<0.001) in leaves and stems, K (p<0.001), Cu (p<0.05) and Fe (p<0.01) in leaves, Zn (p<0.05) and Mn (p<0.001) in stems were found. Differences in accumulation of macro− and microcomponents in the roots seemed not to be significant.
Źródło:
Sylwan; 2016, 160, 01; 40-48
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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