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Wyszukujesz frazę "Kowalkowski, Wojciech" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Assessment of the height stability in progeny of Fagus sylvatica L. populations using the GGE biplot method
Autorzy:
Jastrzębiowski, Szymon
Ukalski, Krzysztof
Klisz, Marcin
Ukalska, Joanna
Przybylski, Paweł
Matras, Jan
Barzdajn, Władysław
Kowalkowski, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/956984.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
g×e interaction
gge biplot
met
adaptation
european beech
Opis:
Forecasted climate changes demand selection of populations (seed stands) and genotypes (plus trees) best adapted to changing environmental conditions and displaying limited genotype × environment (G×E) interaction. Analysis of multi-environment trials (METs) allows to recognize differences between populations and environments, as well as G×E interaction. To define stability of tree height we used a GGE biplot graphic method based on the results of measurement of 5- and 10-year-old trees originating from 30 European beech populations tested at three experimental sites. Majority of variance was explained in terms of the impact of environment. The studied environments were characterised by a similar discriminating ability and representativeness of growth conditions. Two mega-environments were identified as the studied populations of beech differed in their adaptation to local growth conditions. The analysed set of populations included those growing particularly well under the specific environmental conditions, and others displaying more general adaptability. The GGE biplot method is useful in breeding of forest trees.
Źródło:
Dendrobiology; 2018, 79; 34-46
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wood density in European larch (Larix decidua Mill.) from selected provenances grown at the Siemianice Forest Experimental Station
Autorzy:
Szaban, Jarosław
Kowalkowski, Wojciech
Łacka, Agnieszka
Karaszewski, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/2010792.pdf
Data publikacji:
2021
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
Tematy:
physical properties of wood
genetic variability
coniferous wood
sapwood
hardwood
provenance
Opis:
The purpose of this study was to determine variation in the density of wood from different provenances, growing under the same soil and climate conditions. Samples were obtained from an experimental site located at the Siemianice Forest Experimental Station. We analyzed larch wood samples from trees aged 48 years, collected from six different provenances in Poland. Diameter at breast height (DBH) and tree height were used to calculate the parameters for sample trees, from which a 70 cm segment was cut, from breast height upwards (up to 2 m of tree height). Samples with dimensions 20 × 20 × 30 mm were obtained from the material. Sample volume was determined by stereometry. Relative density was determined for 890 samples. The highest wood density was found in trees from Czerniejewo, and the lowest in trees from Rawa Mazowiecka. Analysis of variance, including the mean wood density values of trees, did not demonstrate significant differences between provenances in terms of this characteristic. Mean relative density was higher in larch wood samples from the heartwood zone. The density of samples cut closer to the bark was lower, as the value was affected by the large content of sapwood. A relation was found between the provenances from which the study material was sourced and the relative density of wood.
Źródło:
Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2021, 64, 207; 27-41
1644-3985
Pojawia się w:
Drewno. Prace Naukowe. Doniesienia. Komunikaty
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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