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Wyszukujesz frazę "wych elm" wg kryterium: Wszystkie pola


Wyświetlanie 1-3 z 3
Tytuł:
Zmienność cech wiązu górskiego Ulmus glabra Huds. rosnącego na uprawie zachowawczej ex situ w Nadleśnictwie Oleszyce
Variability of wych elm Ulmus glabra Huds. characteristics growing on an ex situ conservative plantation in the Oleszyce Forest District
Autorzy:
Banach, J.
Skrzyszewska, K.
Puk, I.
Powiązania:
https://bibliotekanauki.pl/articles/2142618.pdf
Data publikacji:
2021
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
drzewa lesne
ochrona ex situ
uprawa zachowawcza
wiaz gorski
Ulmus glabra
zmiennosc cech
liscie
morfotypy
przezywalnosc roslin
wysokosc drzew
Opis:
The aim of this work was to investigate the variability of different features in wych elm Ulmus glabra Huds. populations growing in the conservative plantation in the Kolonia Forest Subdistrict (Oleszyce Forest District). We examined the survival rate, height, and spring flushing of the elm trees as well as the occurrence of two leaf morphotypes after ten years since the establishment of the plantation. Statistically significant differences were found between the studied populations in terms of survival and height growth, while no difference was observed for spring flushing, which may be due to the close proximity in which the tested populations grow. The highest rate of survival was observed in the Bircza 33a population (87.3%), whereas the Lutowiska 40b population grew tallest (344.3 cm). Elms with leaves typical of the U. glabra ssp. montana (morphotype A – 84%) dominated the stand, while elms with leaves characteristic for the U. glabra ssp. glabra (morphotype B) were a minority with only 4%. However, within the Lutowiska 137g population, the share of morphotype B was as high as 25%
Źródło:
Leśne Prace Badawcze; 2021, 82, 1; 23-30
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wzrost szczepów wiązu górskiego (Ulmus glabra Huds.) w archiwum klonów w Nadleśnictwie Bielsk
Growth of Ulmus glabra Huds. grafts in the clone archive in Bielsk Forest District
Autorzy:
Mioduszewski, S.
Korczyk, A.F.
Powiązania:
https://bibliotekanauki.pl/articles/1339852.pdf
Data publikacji:
2013
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
drzewa lesne
ochrona zasobow genowych
wiaz gorski
Ulmus glabra
rozmnazanie roslin
rozmnazanie wegetatywne
klony
wzrost roslin
jakosc hodowlana
Nadlesnictwo Bielsk
vegetative progeny
clone archive
Ulmus glabra Huds.
Wych elm
Opis:
Vegetative progeny were obtained from 46 elms (Ulmus glabra Huds.) by grafting. These grafted trees were planted in 2009 in a clone archive in forest plot 264j in the Bielsk Forest District. After one year of growth, elm clone survival ranged from 38% to 100% (89% on average). Although all clones were of similar age and were grown under similar conditions, their average height was highly variable and ranged from 99.0 cm (clone no. 9473z) to 186.6 cm (clone no. 9645z), while average root collar diameter ranged from 8.4mm (clone no. 9473z) to 18.0 mm (clone no. 9645z). There were large differences crown architectural among the different clones, and variation in average shape of the crown was high (from 2.6 in clone no. 9655 to 3.8 in clone no. 9446z). Index breeding values determined on the standardized data for height, root collar diameter, crown shape and survival, ranged from -0.71 (clone no. 9473z) to 0.61 (clone no. 9645z). Clones from Czerwony Dwór reached a better breeding value (0.17) than clones from Gołdap (-0.0266), and variation in their average breeding values was high (0.197).
Źródło:
Leśne Prace Badawcze; 2013, 74, 2; 149-159
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wyniki wstępnych badań nad zmiennością genetyczną oraz zróżnicowaniem genetycznym między populacjami wiązu górskiego (Ulmus glabra Huds.) w Polsce
Results of preliminary research on genetic variation and genetic differentiation between Wych elm populations (Ulmus glabra Huds.) in Poland
Autorzy:
Chudzińska, M.
Pałucka, M.
Pasławska, A.
Litkowiec, M.
Lewandowski, A.
Kozioł, C.
Powiązania:
https://bibliotekanauki.pl/articles/985889.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
wiaz gorski
Ulmus glabra
zmiennosc genetyczna
markery mikrosatelitarne
populacje roslin
zroznicowanie genetyczne
Polska
zasoby genetyczne
wych elm
genetic variation
microsatellite markers
genetic resources
ex situ conservation
Opis:
Wych elm (Ulmus glabra Huds.) is a rare scattered forest tree species in Poland. First studies on genetic diversity of the species in its natural range in Poland give a good basis for the management and conservation of its genetic resources. In the present study, we determined the level of genetic variation and genetic differentiation of seventeen natural Wych elm populations in Poland using nine nuclear microsatellite loci. The number of analyzed individuals was 601. The level of genetic diversity of Polish populations of Wych elm corresponded with the results of the previous studies on this species in Europe. The populations show quite low level of genetic diversity of the species on the population level and quite high diversity on the interpopulation level. A total of 119 alleles was found, with average number per locus (A) equal 6.0 and allelic richness at medium high level (AR10=4.7). Observed (Ho) and expected (He) heterozygosity reached 0.583 and 0.602 respectively. The genetic differentiation between Polish populations of Wych elm occurred at a low level (Fst=0.089). Inbreeding depression may occur in the next generations (Fis=0.031). Genetic diversity between Wych elm populations in Poland may be the result of unfavorable random processes related to the reduction of population size resulting from elm disease. To better understand the processes related to the genetic diversity of Wych elm populations, research on field elm variation should be undertaken. Such studies may give an answer to the potential influence of introgression between these species on the genetic structure of the Wych elm. Both in situ as well as ex situ conservation measures are highly recommended to preserve genetic resources of this valuable noble hardwood species in Polish landscape.
Źródło:
Sylwan; 2018, 162, 09; 727-736
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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