Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "morphological differentiation" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Two new morphotypes of Pinus eldarica: Discrimination by macromorphological and anatomical traits
Autorzy:
Shayanmehr, F
Jalali, S.G.
Ghanati, F.
Kartoolinejad, D.
Apple, M.E.
Powiązania:
https://bibliotekanauki.pl/articles/41605.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Mondell pine
Pinus eldarica
morphotype
new morphotype
anatomy
statistical analysis
Iran
anatomical differentiation
morphological differentiation
morphometry
needle
Opis:
Pinus eldarica has been introduced to Iran from more than 800 years ago. Some individuals of this pine have altered both in shape and growth rate in northeastern of Iran, and generated two distinct morphotypes which are called Conical-shaped and Ball-shaped pines. This study was conducted to discriminate these morphotypes using macromorphological and anatomical characteristics. Results of macromorphological analysis showed significant differences both with univariate and multivariate analysis and consequently two new morphotypes were clearly separated from Mondell pine individuals. Furthermore, anatomical differences observed in Conical-shaped pine in comparison with two other pines, from some valuable taxonomical point of view traits such as cross-section form of needle, number of stomata per area, number and position of resin ducts etc. Furthermore, the existent difference in traits like cuticle thickness, stomata density, needle perimeter and length, state increasing the adaptation potential to aridity in Conical-shaped pine in comparison with two others. The differences of two new morphotypes demonstrate that they are new variants of Mondell pine and it is need to be used molecular markers and phylogenic studies for specifying the cause of these morphological and anatomical differences.
Źródło:
Dendrobiology; 2009, 61; 27-36
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The morphological traits of needles as markers of geographical differentiation in European Pinus sylvestris populations
Autorzy:
Androsiuk, P.
Kaczmarek, Z.
Urbaniak, L.
Powiązania:
https://bibliotekanauki.pl/articles/41070.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
morphological trait
needle
geographic differentiation
European population
Pinus sylvestris
Scotch pine
migration route
forest
species diversity
genetic diversity
population-location interaction
Opis:
To evaluate the geographic variability of Pinus sylvestris populations seven morphological traits of needles of pines from IUFRO 1982 provenance trial have been analyzed. The studied populations originated from northern (>55°N in Russia, Sweden and Latvia), central (55-47°N in Poland, Germany, Belgium, France, Slovakia) andsouthern (<47°N in Hungary, Bosnia, Montenegro andTurkey) European ranges of Scots pine. The analyzedprovenance trial experimental areas were locatedin Kórnik (western Poland) andin Supraśl (north-eastern Poland). The greatest variation was found in needle length and number of stomata rows on the flat and convex side of a needle, whereas number of stomata per 2mmof needle length on flat and convex side of a needle was stable, with minor interpopulational variation. Biometrical analyses revealed a significant population × location interaction anda geographical pattern in interpopulational differentiation in both experimental sites, with the northern andsouthern European Scots pine groups of provenancesdiffering significantly from the group of central origin. The results obtainedare compatible with previous results of studies on provenance variability of the Scots pine from IUFRO 1982. In the light of available data, the influence of the Balkan glacial refugia of Pinus sylvestris on a present genetic diversity of this species in Europe and the reconstruction of Scots pine migration routes after the last glacial period are discussed.
Źródło:
Dendrobiology; 2011, 65
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differences among three populations of Pinus uliginosa and their relation to P. sylvestris as expressed by the needle characters
Autorzy:
Boratynska, K
Lewandowska, D.
Powiązania:
https://bibliotekanauki.pl/articles/41562.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
peat bog pine
Pinus uliginosa
needle
needle structure
plant population
Scotch pine
Pinus sylvestris
needle characteristics
morphological study
anatomical study
statistical characteristics
relationship
differentiation
Opis:
The results of morphological and anatomical studies on Pinus uliginosa needles from newly-discovered localities of this species in Węglowiec (Bory Dolnośląskie) are presented. The data obtained were compared to similar published material on P. uliginosa needles from its loco classico in Batorow and from the lowland locality in Węgliniec Nature Reserve, and to P. sylvestris growing nearby. In terms of needle structure, all three P. uliginosa populations were slightly different. The samples analyzed differed markedly from the sample of P. sylvestris, which contradicts the hypothesis that Scots pine has had a significant influence on the gene pool of P. uliginosa.
Źródło:
Dendrobiology; 2009, 61; 37-46
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geographical differentiation of Dryas octopetala in Europe based on morphological features
Autorzy:
Marcysiak, K.
Powiązania:
https://bibliotekanauki.pl/articles/41712.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
geographic differentiation
Dryas octopetala
mountain avens
white dryas zob.mountain avens
white dryad zob.mountain avens
Arctic-alpine plant
Europe
morphological feature
biogeography
biometry
climate condition
statistical analysis
Opis:
Dryas octopetala is an important arctic alpine species, but its morphological analyses are scarce. The study deals with present European biogeographical structure based on morphology and its relations to the phylogenetic structure and the climate. Characters of leaves from 23 isolated populations were measured, statistically characterized and analyzed with the use of ANOVA and the discriminant analysis. All the features differentiated the tested samples significantly. Differences between plants representing regions were greater than between the samples within regions with regard to the four characters. The most visible division ran between the samples coming from the southern and the northern parts of the range, with the sample from the Western Scandinavia occupying the central position. Correlations between characters and climactic factors were shown, and the size of the leaf was associated mainly with the minimum temperatures of spring months, while the leaf shape with the rainfall during the summer months. Characters differentiating the regions and discriminating populations strongly were mostly dependent on the influence of the climate. The results of the present study were not fully consistent with the outcomes of the biogeographic molecular analyses of the researched species. Some parallels can be drawn when comparing the present analyses with the geographic differentiation of two other arctic-alpine shrubs Salix herbacea and S. reticulata. Although morphological diversity of Dryas octopetala showed a geographic structure, it was most probably shaped mainly by the influence of the environmental and climatic factors.
Źródło:
Dendrobiology; 2014, 72
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies