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Wyszukujesz frazę "Rutkowska, D." wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Trees with monumental dimensions in the south-western part of the Poznan agglomeration
Autorzy:
Kluza-Wieloch, M.
Wronska-Pilarek, D.
Maciejewska-Rutkowska, I.
Powiązania:
https://bibliotekanauki.pl/articles/790682.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Opis:
The research was carried out within three forest-park complexes located in the south-western part of the Poznań city, which once had the status of ecological uses. The aim of the work was to inventory a dendroflora for the selection of trees with monumental dimensions. In addition, changes in the participation of monumental trees in local vegetation over the last 12 years had been analysed. During the current inventory, 58 monumental specimens were recorded in three afforestation complexes. Most of them grew at Leszczyńska street (31 specimens), and the least at Tyniecka street (6). Since 2004 tree trunk perimeters had increased on average of 18.5 cm. All activities, including conservation works, undertaken in the three described afforestation complexes, or in the immediate vicinity, should lead to the preservation of these objects, their protection against devastation and to expose their most valuable fragments.
Źródło:
Steciana; 2017, 21, 4
1689-653X
Pojawia się w:
Steciana
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:
Taxonomic significance of achene morphology of selected Rosa taxa (Rosaceae) occurring in Poland
Autorzy:
Jagodzinski, A.M.
Maciejewska-Rutkowska, I.
Wronska-Pilarek, D.
Bocianowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/59025.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Botaniczne
Opis:
Achenes of roses were rarely studied and the studies were focused on anatomical research, mainly on pericarp structure and its development. We investigated the achene morphology by light- and scanning electron microscopy (LM and SEM) of 17 Rosa taxa from three sections (R. gallica from Gallicanae section, R. pendulina and R. rugosa from Rosa section, and R. agrestis, R. canina, R. canina var. corymbifera, R. dumalis, R. dumalis var. caesia, R. inodora, R. jundzillii, R. micrantha, R. rubiginosa, R. sherardii, R. ×subcanina, R. tomentosa, R. villosa, R. zalana from Caninae section). Eight quantitative and eight qualitative features were examined based on 9181 achenes, in total. Average achene size ranged from 4.37 to 5.39 mm in length and from 2.57 to 3.32 mm in width. The lowest morphological variability among the examined taxa was found in R. canina var. corymbifera, and the highest in R. gallica, R. inodora, and R. sherardii. The most diagnostic features of the achenes studied were suture (visible or invisible), presence or absence of hairs, hairs distribution and density, the exocarp sculpture and cuticle pattern type (we have distinguished four exocarp sculpture and three cuticle pattern types), and length. Qualitative achene features have significantly higher diagnostic value than quantitative ones. Taxonomical value of these features is quite high on the species and section level. Our study has shown that the previously mentioned morphological features of achenes can be used as valuable, additional diagnostic features in delimitation of Rosa taxa at the species and section level. Based on the morphological features of achenes, a determination key for all Rosa taxa studied was created.
Źródło:
Acta Societatis Botanicorum Poloniae; 2016, 85, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variation of seed morphology of Trollius europaeus L. and Trollius altissimus Crantz [Ranunculaceae]
Autorzy:
Antkowiak, W
Maciejewska-Rutkowska, I.
Jagodzinski, A.M.
Kayzer, D.
Klimko, M.
Powiązania:
https://bibliotekanauki.pl/articles/57408.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
variation
seed
morphology
Trollius europaeus
Trollius altissimus
Ranunculaceae
Opis:
The aim of this study was to investigate seed morphology and intra- and inter-population variation of seeds of Trollius europaeus L. and Trollius altissimus Crantz., two controversial species regarding their taxonomical position. We analyzed seed-coat microsculpture and some biometrical traits (length and width, width/length ratio, volume and projected perimeter). Seed sculpture did not differ between species, but seeds of T. altissimus were usually larger than seeds of T. europaeus. Although species differed significantly in seed morphology, it was possible to show the populations of both species that were similar regarding the analyzed seed traits. We noted a significant inter-population differentiation of seeds in both species with respect to seed-coat microornamentation and biometrical traits. We conclude that T. europaeus and T. altissimus are probably not two distinct species, but T. europaeus should be divided into two lower taxa in the rank of variety or subspecies.
Źródło:
Acta Societatis Botanicorum Poloniae; 2010, 79, 2; 117-123
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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