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Wyszukujesz frazę "Pešková, V." wg kryterium: Wszystkie pola


Wyświetlanie 1-3 z 3
Tytuł:
Long term observation of mycorrhizal status and above-ground fungi fruiting body production in oak forest
Autorzy:
Peskova, V.
Landa, J.
Modlinger, R.
Powiązania:
https://bibliotekanauki.pl/articles/41294.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Opis:
The complex study in oak forest (Dřevíc; Czech Republic) provided unique long-term data concerning the mycorrhizal activity, fungi fructification and health status of trees in relation to elementary environmental factors. When comparing spring and autumnal root sampling, the statistically significant difference in the nonactive mycorrhizae and dry root mass of 1 mm or less occurred. The annual monitored values of fungi fructification and their differences are dependent on summer and autumn precipitation. The total annual precipitation is not of great importance. The significant connection between defoliation and increased relative quantity of nonactive mycorrhizae and, on the contrary, reduction of the active mycorrhizae density was documented in the overall evaluation. Spring and autumn root samples provided statistically significant difference in the nonactive mycorrhizae and dry root mass of roots below 1 mm in diameter. Long-term surveys are important for understanding the structure of mushroom assemblages and their biodiversity. The significant variation of the annual monitored values of fungi fructification is mostly dependent on precipitation intensity during summer and autumn and not on the total annual precipitation. No significant relation between the mycorrhizal activity and fructification of macromycetes was found in the sense of actual maximum-minimum abundance in time. The significant variation occurs in annual values of fungi fructification, number of species and mycorrhizal distribution, what is influenced by many factors. As a most significant and influencing of these factors is the course of precipitation. The year-on-year and also spring and autumnal differences between the mycorrhizal activity which was not in correlation in time with fungi fructification, were ascertained. Since this discovery significantly predicates the status of the monitored mycorrhizal stand, we consider their actual monitoringas highly opportune and mutually completing the final general view.
Źródło:
Dendrobiology; 2013, 69
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fine roots of Picea abies compensate for drought stress in the rainfall reduction experiment
Autorzy:
Lorenc, F.
Pešková, V.
Modlinger, R.
Mrnka, L.
Tomášková, I.
Šenfeld, P.
Turčáni, M.
Powiązania:
https://bibliotekanauki.pl/articles/2077946.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
climate change
community
ectomycorrhiza
Norway spruce
WinRhizo
Opis:
This study evaluates the influence of repeated artificial drought stress on the fine root charac- teristics – including ectomycorrhizae – of Norway spruce [Picea abies (L.) Karst]. The experimental site consisted of two plots in a mature spruce monoculture stand. The water regime at parts of both plots was regulated by shelters and an isolation trench during vegetation season (spring to autumn) since 2010. Root samples were collected during autumn in 2010, 2012, and 2013. Root analyses revealed the effect of drought stress on mycorrhizal root tips changed over time. While a density of active mycorrhizae was about 34% lower in drought-stressed areas compared to nonstressed (control) areas in 2010, it increased by 15% in 2012 and by 22% in 2013 over both plots. We observed the less pronounced effect of drought on a proportion of active mycorrhizae, but it generally followed the pattern of active mycorrhizae density. The density of nonactive mycorrhizae was not influenced by drought but significantly fluctuated during the course of the experiment. Other root characteristics such as the dry mass of fine roots (< 1 mm), the specific length of fine roots (< 1 mm) and the composition of the ectomycorrhizal community (primarily dominated by Amphinema byssoides, Tylospora fibrillosa, Tylopilus felleus, and Cenococcum geophilum) were also not significantly influenced by drought. Our results indicate the ability of Norway spruce fine roots to com- pensate for repeated drought stress of the intermediate intensity.
Źródło:
Dendrobiology; 2018, 80; 91-100
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aspekt fitopatologiczny i entomologiczny zdrowotnosci swierczyn gorskich na terenie Republiki Czeskiej
Autorzy:
Holuska, J
Liska, J.
Kapitola, P.
Peskova, V.
Soukup, F.
Powiązania:
https://bibliotekanauki.pl/articles/46006.pdf
Data publikacji:
2005
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
Czechy
choroby roslin
owady
szkodniki roslin
zdrowotnosc lasu
drzewostany swierkowe
lasy gorskie
lesnictwo
Źródło:
Leśne Prace Badawcze; 2005, 2; 133-138
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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