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Wyszukujesz frazę "Sorbus" wg kryterium: Temat


Tytuł:
An assessment of genetic diversity following natural regeneration of Sorbus torminalis in the Forest District of Jamy (northern Poland)
Autorzy:
Bednorz, L.
Myczko, L.
Kosinski, P.
Powiązania:
https://bibliotekanauki.pl/articles/41322.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
assessment
genetic diversity
natural regeneration
Sorbus torminalis
conservation
wild service tree
Forest District Jamy
Polska
Opis:
The subject of the study was a population of Sorbus torminalis resulting from spontaneous regeneration from seeds in northern Poland at the north-eastern limit of the species distribution. The population, occupying a fenced plot of 1.72 ha in the Forest District of Jamy, amounted to 579 individuals of variable age classes up to about 19 years old. Six polymorphic gene loci: MDH-B, ME-A, 6PGD-B, ADH-B, PGM-A, PGM-B were studied in 532 individuals recruited post-fencing and 21 potentially parental, adult trees. The analysis showed similarly high levels of genetic diversity within both subsets of individuals but there was also a noticeable change in genetic structure between them. Detailed genetic analysis of the post-fencing recruits revealed lack of significant differences between different age groups based on DBH within the fenced plot.
Źródło:
Dendrobiology; 2015, 73
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analyses of spatial structure and selected measures of growth of Sorbus torminalis in Forest District Jamy (northern Poland)
Autorzy:
Bednorz, L.
Kazmierczak, K.
Kaczmarek, L.
Powiązania:
https://bibliotekanauki.pl/articles/41095.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
spatial structure
plant growth
Sorbus torminalis
service tree
wild plant
growing space
tree crown
conservation
competition
Polska
Jamy Forest District
Opis:
The subject of the study was a dynamic population of Sorbus torminalis resulting from spontaneous regeneration from seeds in northern Poland. The population, occupying a fenced plot of 1.72 ha in Forest District Jamy, amounted to 579 individuals. The spatial structure of population and some basic individual traits of trees were recorded, then the growing space of individual trees was examined. The following measures of tree growing space were investigated: crown diameter and projection area, and tree volume. The spatial structure of population was non-random, and there was evidence for effects of population density on tree performance. The observations have to be continued in order to describe optimal growing space of wild service tree; the results could be used to improve in situ conservation of this rare and valuable species.
Źródło:
Dendrobiology; 2012, 67
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conservation of genetic resources of Sorbus torminalis in Poland
Autorzy:
Bednorz, L
Powiązania:
https://bibliotekanauki.pl/articles/41249.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
genetic resource
conservation
tree
Rosaceae
wild service tree
Sorbus torminalis
forest tree
Polska
Opis:
The paper presents the proposal of a strategy of conservation of genetic resources of wild service tree (Sorbus torminalis) in Polish forests. Some results of the recent studies on distribution, resources and genetic variability of wild service tree in Poland that make a scientific base of the programme are presented. Both in situ and ex situ methods should be applied in conservation of genetic resources of S. torminalis. Conservation affords should first to be focused on forest management oriented in favor of wild service tree (e.g. logging intervention, competition control, preparing of favorable sites for new establishments). Further, in situ measures should include selection of conservation areas (natural gene reserves) and preserving trees of the best quality (protected genotypes). These objects would provide seeds for new establishments and to feed populations of small size. The genotypes of the selected earlier preserving trees (about 250–300) would be protected in ex situ conservation objects – seedling and clonal seed orchards. These plantations would also provide seeds needed for future establishments. The genotypes of endangered populations or single trees of S. torminalis could be preserved in the Forest Gene Bank in Kostrzyca.
Źródło:
Dendrobiology; 2007, 58; 3-7
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of the multilayered epidermis covering fruit of Sorbus torminalis (Rosaceae)
Autorzy:
Bednorz, L
Wojciechowicz, M.K.
Powiązania:
https://bibliotekanauki.pl/articles/41101.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
tree
plant anatomy
epidermis
fruit
Sorbus torminalis
Rosaceae
blooming time
multilayered epidermis
development
mature fruit
epidermal meristem
Opis:
In this paper we focus on anatomic structure of the outer cellular layers of the fruit of Sorbus torminalis. We have confirmed the theory of existing of multilayered epidermis providing developmental, histogenetic evidence. The studies were made from blooming time (ovules) to fully ripen fruits, using various histological techniques and microscope types. The multilayered epidermis is derived from successive tangential divisions of cells of initially single-layered epidermis commencing about two weeks after full bloom. The subsequent epidermal layers result from division of cells of epidermal meristem. The mature fruits – about 12 weeks after full bloom – are covered with four – to five-layered epidermis; each layer with its own cuticle. The lenticels developed beneath stomata from phellogen which is not in continuity with the epidermal meristem. Measurements of cuticular membranes thicknesses during development were also made.
Źródło:
Dendrobiology; 2009, 62; 11-16
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jak chronić jarząb brekinię (Sorbus torminalis) w polskich lasach?
How to protect the wild service tree [Sorbus torminalis] in Polish forests?
Autorzy:
Bednorz, L.
Powiązania:
https://bibliotekanauki.pl/articles/1012264.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Sorbus torminalis
zasoby genowe
wystepowanie
ochrona gatunkowa
Polska
zagrozenia roslin
gatunki rodzime
jarzab brekinia
lesnictwo
drzewa lesne
species protection
genetic resources
in situ and ex situ measures
sorbus torminalis
Opis:
The paper presents the proposal of the strategy of conservation of genetic resources of Sorbus torminalis in Polish forests. The need of active protection of the species based on both, in situ and ex situ methods, was emphasized.
Źródło:
Sylwan; 2009, 153, 05; 354-360
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jarząb brekinia (Sorbus torminalis) w polskich lasach
Wild service tree (Sorbus torminalis) in Polish forests
Autorzy:
Bednorz, L.
Urbański, P.
Powiązania:
https://bibliotekanauki.pl/articles/991153.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
botanika lesna
drzewa lesne
jarzab brekinia
Sorbus torminalis
wystepowanie
Polska
sorbus torminalis
forest trees
species protection
commercial cultivation
Opis:
The paper presents a brief history and present state of Sorbus torminalis in Polish forests. It shows the history of research and conservation of this species and changes in conservation strategies and methods. The future of the species, concerning both conservation and cultivation context looks optimistically.
Źródło:
Sylwan; 2014, 158, 08; 614-620
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jarząb brekinia (Sorbus torminals) na zrekultywowanych terenach pogórniczych Kopalni Wapienia Górażdże
The wild service tree (Sorbus torminalis) onreclaimed post-mining areas of the Gorazdze Limestone Mine
Autorzy:
Bednorz, L.
Kaczmarek, L.
Powiązania:
https://bibliotekanauki.pl/articles/880568.pdf
Data publikacji:
2015
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
Kopalnia Wapienia Gorazdze
tereny pogornicze
rekultywacja
jarzab brekinia
Sorbus torminalis
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2015, 17, 1[42]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological leaf variability of rowan [Sorbus aucuparia L. Emend. Hedl. subsp. aucuparia] in the Wielkopolska National Park
Zmiennosc morfologiczna lisci jarzebu pospolitego [Sorbus aucuparia L. Emend. Hedl. subsp. aucuparia] w Wielkopolskim Parku Narodowym
Autorzy:
Bednorz, L.
Byzia, A.
Powiązania:
https://bibliotekanauki.pl/articles/878270.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
variability
Sorbus aucuparia
Wielkopolski National Park
Polska
botany
rowan
morphological variability
leaf
Wielkopolska region
multivariate statistical analysis
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2005, 09
1896-1908
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological variability of fruits and seeds of Sorbus torminalis in Poland
Autorzy:
Bednorz, L
Powiązania:
https://bibliotekanauki.pl/articles/41347.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
tree
Rosaceae
plant variation
biometry
statistical analysis
rare species
tree species
Sorbus torminalis
fruit
seed
morphological variability
Polska
Opis:
The results of the study on morphological variation of fruits and seeds of a rare forest tree species Sorbus torminalis (L.) Crantz in Poland are presented and discussed. The ripe fruits were collected from 13 localities widespread within the range of the species. Fruits and seeds were measured according to 13 morphological traits. The biometric data were subjected to multivariate statistical analysis in attempt to define intra and inter populational variation. Most of the fruit and seed traits are significantly correlated and are characterized by moderate level of variation. Traits describing size and shape are higher variable in seeds than in fruits. High level of variation within examined populations was ascertained. The average among population component of variation was only 23.99%. Though the differences between sampled populations are significant, almost no geographical pattern of this differentiation was detected. The biological significance of some of fruit and seed features is discussed in the paper. Examining the collected material a single fruits with 5–6 seeds were found what suggests the presence of three carpels in gynoeceum, a number not previously reported in the species.
Źródło:
Dendrobiology; 2007, 57; 3-14
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological variability of leaves of Sorbus torminalis [L.] Crantz in Poland
Autorzy:
Bednorz, L
Powiązania:
https://bibliotekanauki.pl/articles/56763.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
morphological variability
leaf
Sorbus torminalis
plant morphology
statistical analysis
Polska
Opis:
This paper presents the results of the study on morphological variability of leaves of a scattered tree species Sorbus torminalis (L.) Crantz) in Poland. The leaves from short- and long shoots were collected from 17 localities widespread within the range of the species in Poland. Leaves were measured according to 15 morphological traits. The biometric data were subjected to multivariate statistical analysis in attempt to define variability between local populations. Most of the leaf traits are significantly correlated and are characterised by moderate level of variation. The average among population component of variation was 32.82% and 27.46% for leaves on short- and long shoots, respectively. The differences between sampled populations are significant, but only a weak geographical pattern of this differentiation was detected. Clinal type of variation was ascertained in two traits. Leaf traits which discriminate best the studied populations are also indicated. It was proved that leaves on short shoots differ markedly in shape and size from those of long shoots. Leaves on long shoots are steadier, but morphological trait values are less correlated. The study also confirmed the occurrence of individuals with leaves characteristic for S. torminalis var. perincisa Borbas et Feck and S. torminalis f. mollis Beck in a few Polish populations.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 3; 233-243
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural monuments of selected species of the genus Sorbus L. in Poland
Autorzy:
Bednorz, L.
Powiązania:
https://bibliotekanauki.pl/articles/790539.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
natural monument
tree
monument
selected species
plant species
Sorbus
Rosaceae
Sorbus aria
Sorbus aucuparia
Sorbus latifolia
Polska
Opis:
This paper describes 10 natural monuments, including 12 specimens of rowan trees, representing three following species: Sorbus aria (2), S. aucuparia (7) and S. latifolia (1). It also presents a comprehensive analysis of all rowan trees admitted as natural monuments in Poland.
Źródło:
Steciana; 2014, 18, 4
1689-653X
Pojawia się w:
Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phenology of the wild service tree (Sorbus torminalis (L.) Crantz] in Poznań and Wielkopolski National Park
Autorzy:
Bednorz, L
Urbaniak, A.
Powiązania:
https://bibliotekanauki.pl/articles/41389.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
phenology
seasonal rhythm
climatic factor
tree
Wielkopolski National Park
Sorbus torminalis
Rosaceae
forest tree species
Opis:
In this paper the results of the 3-year observations (2001–2003) of seasonal rhythm of S. torminalis trees growing in Poznań in Dendrological Garden of Agricultural University and in forests of Wielkopolski National Park are presented. The observations included the course of leaf development, leaf coloration and leaf fall as well as flowering, fruit ripening and fall. Sixteen phenophases were taken into account. The differences in timing and duration of S. torminalis phenophases from year to year, between two sites and among trees within the same site are pointed out and discussed.
Źródło:
Dendrobiology; 2005, 53; 3-10
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pollen morphology of some European Sorbus species
Autorzy:
Bednorz, L
Fujiki, T.
Makohonienko, M.
Powiązania:
https://bibliotekanauki.pl/articles/878156.pdf
Data publikacji:
2003
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
Sorbus aucuparia
Sorbus x hybrida
Sorbus
European species
pollen morphology
Sorbus arranensis
Sorbus mougeotti
Opis:
This paper presents morphology of pollen grains of four European Sorbus species: S. arranensis Hedl., S. aucuparia L., S. hybrida L., S. mougeotti Soy.-Will. & Godr. The importance of exine sculpture details in taxonomy is underlined.
W pracy przedstawiono wyniki badan nad morfologia ziarn pyłku czterech europejskich gatunków rodzaju Sorbus (S. arranensis Hedl., S. aucuparia L., S. hybrida L., S. mougeotti Soy.- Will. & Godr.) oparte na obserwacjach pod mikroskopem skaningowym (HR-SEM). Scharakteryzowano zewnętrzną budowę ziarn pyłku badanych taksonów oraz zmierzono ich wielkość. Ziarna S. aucuparia były najmniejsze i zostały zaklasyfikowane jako małe, podczas gdy ziarna pozostałych gatunków były zbliżonej wielkości i zostały zakwalifikowane jako średnie. Pod względem kształtu ziarna S. arranensis określono jako wydłużone, ziarna pozostałych gatunków były najczęściej kulisto-wydłużone. Różnice pomiędzy ziarnami pyłku badanych gatunków uwidoczniły się przede wszystkim w urzeźbieniu powierzchni eksyny. Najwyraźniej wyróżniały się ziarna S. arranensis o skulpturze w typie rugulate (krótkie i grube prążki). Powierzchnia eksyny u pozostałych gatunków była prążkowana (typu striate). U S. hybrida i S. mougeotti prążki były bardzo długie, ale wyraźnie cieńsze u drugiego gatunku. Ziarna S. aucuparia miały prążki krótsze i bardziej zagęszczone, z dobrze widocznymi perforacjami pomiędzy vallae.
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika; 2003, 06
1508-9193
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pollen morphology of the Polish species of the genus Sorbus L.
Autorzy:
Bednorz, L
Maciejewska-Rutkowska, I.
Wronska-Pilarek, D.
Fujiki, T.
Powiązania:
https://bibliotekanauki.pl/articles/59342.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Sorbus chamaemespilus
pollen grain
Sorbus aucuparia
Sorbus aria
Sorbus
botany
Sorbus intermedia
pollen morphology
palynotaxonomy
Polish species
Sorbus torminalis
Opis:
This paper presents the results of the study on pollen morphology of five Polish species of the genus Sorbus L. (S. aria (L.) Crantz, S. aucuparia L. Emend. Hedl., S. chamaemespilus (L.) Crantz, S. intermedia (Ehrh.) Pers. and S. torminalis (L.) Crantz). Observations were carried out with light and scanning microscopes. Investigated pollen grains were small or medium size, most often subprolate or prolate spheroidal in outline. Exine of medium thickness, consisted of two layers. Mainly 3-zonocolporate or sometimes 4-zonocolporate (S. chamaemespilus and S. torminalis) grains were noted. Usually striatae type of sculpture was observed, except the grains of S. intermedia, which were characterized by intermediate type of sculpture, with the features both striate and regulate ornamentation. Pollen morphology of the investigated Sorbus species corresponds with their systematic classification. It is relatively easy to separate pollen grains of the following subgenera: Sorbus, Chamaemespilus and Torminaria. Only subgenus Aria includes grains of different morphology and therefore it is impossible to determine the diagnostic features of this subgenus. Pollen morphology does not confirm a close relationship between S. aria and S. intermedia. It is possible to distinguished pollen grains of all the analysed native species. However, there are no important differences in pollen morphology between the subspecies of Sorbus aucuparia. The key for Polish Sorbus species, based on pollen grain characters is given too.
Źródło:
Acta Societatis Botanicorum Poloniae; 2005, 74, 4
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seed variability of the Polish species of the genus Sorbus (Rosaceae)
Autorzy:
Bednorz, L
Walkowiak, R.
Maciejewska-Rutkowska, I.
Molinski, K.
Powiązania:
https://bibliotekanauki.pl/articles/40978.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Polska
Polish species
plant variation
plant taxonomy
statistical analysis
biometry
seed variability
Sorbus
Rosaceae
Opis:
This paper presents the results of the study on morphological differentiation of seeds of five Polish species of the genus Sorbus L. (S. aria (L.) Crantz, S. aucuparia L. Emend. Hedl., S. chamaemespilus (L.) Crantz, S. intermedia (Ehrh.) Pers. and S. torminalis (L.) Crantz). The biometric data of 1980 seeds were subjected to multivariate statistical analysis in attempt to define intraspecific variation and to find differences between studied taxa. Most of the seed traits are significantly correlated and are characterised by moderate level of variation. Seeds of S. aucuparia (both subspecies) are the least variable while seeds of S. torminalis and S. intermedia the most. On the basis of size and shape traits of Sorbus seeds only seeds of S. aucuparia can be definitely distinguished from the others.
Źródło:
Dendrobiology; 2006, 55; 3-9
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł

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