Temat: Hedera helix - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Wood anatomy of ivy-hosting black alder (Alnus glutinosa Gaertn.)
Autorzy:: Yaman, B
Powiązania:: https://bibliotekanauki.pl/articles/41410.pdf
Data publikacji:: 2009
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: tree
English ivy
ivy
Hedera helix
ivy impact
host tree
secondary xylem
growth
wood
anatomy
black alder tree
Alnus glutinosa
qualitative property
Opis:: The study aims at investigating the impact of ivy (Hedera helix L.) on the growth and on some wood anatomical characteristics of black alder trees. Ivy-hosting and non-hosting black alder have a similar wood anatomy in terms of qualitative properties. However, in ivy-hosting trees tangential and radial diameter of vessels are narrower (p <0.001), and inter-vessel pits are smaller (p <0.01), whereas vessel frequency is higher (p<0.05) than those of non-hosting ones. The average maximum ray height is greater (p<0.05), and ray number mm-1 is lower (p < 0.001) than those of non-hosting individuals. In addition, the last ten years’ average radial growth has decreased 39.5% compared to that of non-hosting black alder.
Źródło:: Dendrobiology; 2009, 62; 41-45
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Ekologiczne uwarunkowania występowania bluszczu pospolitego (Hedera helix L.)
Ecological determinants of the occurrence of Hedera helix L.
Autorzy:: Koziarz, M.
Powiązania:: https://bibliotekanauki.pl/articles/973523.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: bluszcz pospolity
Hedera helix
rozmieszczenie geograficzne
uwarunkowania klimatyczne
uwarunkowania ekologiczne
pnącza
pochodzenie roślin
ekologia roślin
rozwój roślin
występowanie
uwarunkowania środowiskowe
ivy
ecology
habitat requirements
host trees
Opis:: Ivy (Hedera helix L.) is the only native evergreen climber and exclusive representative of Araliaceae in Poland's flora. It occurs in all forests across Poland, mainly in the western and the southern part of the country. It is a shade−tolerant species, preferring mild climate as well as moist and fertile soils. In favourable conditions ivy climbs up the various supports, and it blooms when it has sufficient access to the light. The study synthesises dispersed information on the ivy ecology and identifies areas for further research. The occurrence of ivy is determined mainly by environmental conditions. Plantings and uncontrolled penetration into the forest environment plays also an important role in this species spread. Gaps, which have arisen in the stand, increase the chances of intensive growth of ivy population. The possibility of colonization of this species is limited mainly to secondary forests. Most studies suggest that ivy is influenced, indifferently or preferably, on tree support, provided that they are not weak. There are some disturbances such as storms or timber harvest that can contribute to the creation of favourable conditions for the mass colonization of forest habitats by ivy. The data concerning dynamics of ivy growth comes from research conducted in the Rhine valley and the Mediterranean region i.e. areas which have the most favourable conditions for the development of the species. Such research have not been carried out in the Central and Eastern Europe, where less favourable conditions for the development of ivy occur.
Źródło:: Sylwan; 2015, 159, 02; 168-176
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Seasonal patterns of free proline and carbohydrate levels in cherry laurel (Prunus laurocerasus) and ivy (Hederea helix) leaves and resistance to freezing and water deficit
Autorzy:: Bandurska, H
Plachta, M.
Woszczyk, M.
Powiązania:: https://bibliotekanauki.pl/articles/41593.pdf
Data publikacji:: 2009
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: evergreen shrub
woody plant
seasonal change
temperature
climate
water-soluble carbohydrate
proline
free proline
carbohydrate level
leaf
cherry laurel
Prunus laurocerasus
ivy
Hedera helix
freezing resistance
water deficit
resistance
Opis:: Seasonal changes in the levels of water-soluble carbohydrates, free proline and tolerance to freezing and water deficit were studied in leaves of cherry laurel (Prunus laurocerasus) and ivy (Hedera helix). Frost and water deficit tolerance was estimated based on the measurement of electrical conductivity of aqueous media containing leaf discs that were previously treated with frost (–7°C) or polyethylene glycol solution (PEG 600), respectively. Carbohydrate content in leaves of examined species changed differently throughout the measurement period. In laurel leaves the highest carbohydrate level was found in February, while it was lowest in June. In contrast, in ivy leaves the highest carbohydrate content was recorded during summer (June, July), while the lowest in February. However, a lack of correlation between soluble carbohydrate level and membrane injury index was shown in this study. Free proline content in leaves of investigated species was the highest in early spring, i.e. April. The lowest level of free proline in laurel leaves was found in July, September and October, but in ivy from July to February. A negative correlation between proline content and membrane injury index observed in frost and PEG treated leaves of both species suggest that this amino acid may have resulted on membrane protection.
Źródło:: Dendrobiology; 2009, 62; 3-9
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Hedera helix" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język