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Wyszukujesz frazę "azalea" wg kryterium: Temat


Wyświetlanie 1-8 z 8
Tytuł:
Diversity of fungi colonizing and damaging leaves of pontic azalea Azalea pontica
Różnorodność grzybów zasiedlających i uszkadzających liście azalii pontyjskiej Azalea pontica
Autorzy:
Kowalik, M.
Powiązania:
https://bibliotekanauki.pl/articles/67775.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
diversity
fungi
fungi colonizing leaf
Pontic azalea
Azalea pontica
health status
leaf
Opis:
The research aimed at verification of fungi species colonizing phyllosphere of pontic azalea Azalea pontica L. and at comparison of the fungi species composition: – in the natural stand in the Kołacznia nature reserve, – in arboretum collections at Bolestraszyce and Rogów. 600 fragments of healthy, infected and fallen leaves of pontic azalea were collected for mycological analyses. The species forming the largest number of colonies identified from the healthy leaves were: A. alternata, Ph. cyclaminis, E. nigrum, Ph. medicaginis and B. cinerea, from infected leaves: A. alternata, E. nigrum, Ph. cyclaminis, S. fimicola, T. viride and A. phaeospermum, whereas: E. nigrum, A. alternata, S. fimicola, Ph. cyclaminis and B. cinerea were isolated from the fallen leaves, which indicates that a majority of fungi persistently colonize the leaves during vegetation period and damage them, which leads to defoliation. Colonization of pontic azalea phyllosphere in arboreta by more numerous fungi colonies and species than under conditions of natural sites evidences their increased pressure in the arboreta environment.
Obserwacje stanu zdrowotnego azalii pontyjskiej Azalea pontica przeprowadzono w 2011 roku na stanowisku naturalnym w rezerwacie Kołacznia, w kolekcji Arboretum i Zakładu Fizjografii w Bolestraszycach oraz w kolekcji Arboretum SGGW w Rogowie. Celem badań była weryfikacja gatunków grzybów zasiedlających fyllosferę azalii pontyjskiej oraz porównanie składu gatunkowego grzybów na naturalnym stanowisku i w arboretach. Analizie mykologicznej poddano liście zdrowe, porażone i opadłe. Stwierdzono, że zbiorowiska grzybów bytujących w fyllosferze azalii pontyjskiej na stanowisku naturalnym i w arboretach różniły się składem gatunkowym i liczbą kolonii. Gatunkami wyodrębnionymi w największej liczbie kolonii ze zdrowych liści azalii pontyjskiej były: A. alternata, Ph. cyclaminis, E. nigrum, Ph. medicaginis i B. cinera, z liści porażonych: A. alternata, E. nigrum, Ph. cyclaminis, S. fimicola, T. viride i A. phaeospermum, a z liści opadłych: E. nigrum, A. alternata, S. fimicola, Ph. cyclaminis i B. cinerea, co wskazuje, że większość z nich w okresie wegetacji stale zasiedla liście i uszkadza je, co prowadzi do ich przedwczesnego opadania. Zasiedlenie porażonych liści azalii w arboretach przez porównywalną liczbę kolonii i gatunków grzybów (w tym patogenów), znacznie większą niż w rezerwacie, może świadczyć o wpływie sąsiadujących roślin żywicielskich na ich stan zdrowotny. Kolonizacja fyllosfery azalii pontyjskiej w arboretach w Bolestraszycach i Rogowie przez dużo większą liczbę kolonii i gatunków grzybów, niż w warunkach naturalnego stanowiska w Kołacznii, świadczy o wzmożonej presji grzybów w środowiskach arboretów.
Źródło:
Acta Mycologica; 2013, 48, 2
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Loiseleuria procumbens [Ericaceae] in the Spanish Pyrenees
Autorzy:
Boratynski, A
Romo, A.
Powiązania:
https://bibliotekanauki.pl/articles/57533.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
phytocoenology
Alpine azalea
Loiseleuria procumbens
Pyrenees Mountains
chorology
azalea
Spain
Arctic-alpine plant
plant geography
Ericaceae
Opis:
The paper analyses the distribution and occurrence conditions of Loiseleuria procumbens in the Spanish Pyrenees. The species represents a typical arctic-alpine element in the flora of Europe. In the Pyrenees it reaches its southernmost European localities. The Pyrenean populations of the species are not numerous in the majority of the localities. L. procumbens occurs most frequently in the alpine and subalpine zones, at altitudes between 2100 and 2650 m, with a minimum at 1750 m and a maximum at 2900 m. It has been reported nearly exclusively in the siliceous substrata, and predominantly on the north-facing slopes, on the regosols and/or on flat tops of rocks. It forms its own communities, mostly included into the Loiseleurio-Vaccinion alliance, and rarely enters associations of the Festucion airoidis and Rhododendro-Vaccinion alliances. Its typical community, Cetrario-Loiseleurietum procumbentis, is found only in the eastern and central parts of the Spanish Pyrenees.
Źródło:
Acta Societatis Botanicorum Poloniae; 2003, 72, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rooting of azalea shoot cuttings depending on the degree of lignification
Autorzy:
Nawrocka-Grzeskowiak, U
Grzeskowiak, W.
Powiązania:
https://bibliotekanauki.pl/articles/41327.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
shoot anatomy
rooting
lignification
propagation
lignified cutting
cutting
azalea
Ericaceae
Rhododendron
Opis:
Relationship between the degree of cutting lignification and rooting ability was studied. Anatomical changes in cuttings were observed, too. The study involved azalea hybrids from groups: Gent, Rustica Flore Pleno, Occidentale and Knap Hill, which can be propagated vegetatively by shoot cuttings. The cuttings were apical parts of shoots, 7-10 cm long. They were collected at various stages of lignification. Rooting was performed in a greenhouse with controlled temperature of the rooting bed. Only the penetrating observation of mother plants allows to determine the best period of taking the cuttings. The cuttings were treated with a growth regulator, 0.5% IBA (indolebutyric acid), combined with Captan in talcum powder. Sand and peat (1:2) were used as a medium for rooting.
Źródło:
Dendrobiology; 2003, 49
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Loiseleuria procumbens: differentiation of the seed size of some chosen European populations
Autorzy:
Szkudlarz, P
Powiązania:
https://bibliotekanauki.pl/articles/41637.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
variation
length
Loiseleuria procumbens
Alpine azalea
seed size
Europe
width
distribution
population
Opis:
Loiseleuria is a monotypic genus of the family Ericaceae. The only species of this genus, L. procumbens, is an arctic-alpine element with a circumpolar distribution, found in the subarctic zone and in mountain ranges located further south. Results of earlier research on the structure of its fruits and seeds (Szkudlarz 2002) suggested that there are some differences between populations from different parts of its natural range of distribution. To verify this hypothesis, seed dimensions in samples from distant localities were compared in this study. The presented results indicate that in populations from Scandinavia seeds are generally shorter than in central Europe.
Źródło:
Dendrobiology; 2003, 50
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of growth retardants on growth and flower bud formation in rhododendron and azalea
Autorzy:
Marosz, A
Matysiak, B.
Powiązania:
https://bibliotekanauki.pl/articles/41091.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
azalea
rhododendron
flower bud formation
plant growth
growth retardant
growth inhibition
growth regulator
plant cultivar
Opis:
Plants of ‘Catawbiense Boursault’ and ‘Eskimo’ rhododendrons or ‘Cannon’s Double’ and ‘Kilian’ azalea grown in 4 l containers were treated twice with chlormequat (2000, 4000 and 8000 mg · dm-3), trinexapac-ethyl (50, 100, 200, 400 mg · dm-3), daminozide (2500, 5000, 7500 mg · dm-3), proxeadione calcium (75, 150, 300 mg · dm-1) and once with paclobutrazol (50, 100, 200, 400 mg · dm-3). Shoot length of the subsequent growth flush following the treatments decreased with increasing rates of the growth retardants. The number of flower buds per plant increased with increasing rates of pacloburazol, chlormequat and daminozide. Prohexadione calcium was less effective in flower bud initiation and the worst results were obtained with trinexapac-ethyl.
Źródło:
Dendrobiology; 2005, 54; 35-40
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Loiseleuria procumbens (Ericaceae) in the Ukrainian Carpathians
Autorzy:
Boratynski, A
Didukh, Y.P.
Powiązania:
https://bibliotekanauki.pl/articles/41716.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
ecology
Ukraine
phytocoenology
alpine azalea
plant protection
Loiseleuria procumbens
Carpathians Mountains
chorology
plant geography
Ericaceae
Opis:
Distribution of Loiseleuria procumbens (L.) Desv. in the Eastern Carpathians of Ukraine is presented on the basis of herbaria, literature and the authors' field studies. Site conditions of species occurrence and its phytocoenotic properties are described. The needs' of protection of L. procumbens and its plant communities are discussed.
Źródło:
Dendrobiology; 2002, 47
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of regulated deficit irrigation imposed in the fall on cold hardiness of woody plants
Autorzy:
Matysiak, B.
Treder, W.
Powiązania:
https://bibliotekanauki.pl/articles/101019.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
controlled freezing test
electrolyte leakage
Knaphill-Exbury azalea
Lawson cypress
regulated deficit irrigation
RDI
Opis:
In temperate zone, early freeze, particularly if preceded by a period of warm and wet weather, can severely injure many woody plants. The young plants are particularly sensitive to frost, especially those grown in containers. The timing and capacity of cold acclimation are modified by environmental cues. We examined whether regulated deficit irrigation (RDI) imposed in the fall affects cold acclimation of containerized Lawson cypress (Chamaecyparis lawsoniana)‘Columnaris’ and Knaphill-Exbury azalea (Rhododendron) ‘Oxydol’. Three-year-old plants were grown in containers placed in the open field and were cultivated according to standard nursery practice. In the end of growing season (from 5th October to 2nd November 2015, half of the plants were expose to moderated water stress by ceasing irrigation and protecting them from the rain (RDI treatment). The volumetric water content of the growing medium gradually decreases in this time from 0.45 to 0.2 m3/m3. Irrigation of the second part of the plants were continued in October and water content was maintained at 0.45 m3/m3 (control treatment). Cold hardiness of stem tissues was assessed two times (2nd November and 7th December) in the laboratory using the ion-leakage test. Stem tissue were exposed to 6 test temperatures, ranging from +4 to – 26˚C. Additionally, plant quality after overwintering was evaluated. Freeze tolerance of plant stems of both woody plants was significantly higher in December than November. Regulated deficit irrigation (RDI) generally increased cold hardiness of Lawson cypress in November as well as in December. At RDI treatment, ion-leakage from plant tissue frozen to - 26˚C was lower by 20% in the first time of assessment, and by 8% in the second time. Regulated deficit irrigation (RDI) increased cold hardiness of azalea stems only in November, but did not affect frost hardiness in December. At water deficit treatment, ion-leakage from plant tissue frozen to - 26˚C was lower by 12% than at control treatment. This study demonstrated that reduced water supply early autumn promoting acclimating to low winter temperatures.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2017, II/1; 555-566
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Volhynian Polesia - main source of the yellow azalea (Rhododendron luteum Sweet) in European gardens and parks
Polesie Wołyńskie - główne źródło pocchodzenia różanecznika żółtego (Rhododendron luteum Sweet) w ogrodach i parkach Europy
Autorzy:
Piorecki, J.
Dubiel, E.
Powiązania:
https://bibliotekanauki.pl/articles/888518.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Dendrologiczne
Tematy:
Caucasus Mountains
Ericaceae
Europe
Rhododendron luteum
Volhynia Upland
garden
natural range
park
plant species
tree introduction
yellow azalea
Opis:
Natural range of the Yellow Azalea Rhododendron luteum Sweet (Azalea pontica L.) includes the Caucasus, Asia Minor, Volhynia and SE rim of the Alps (Slovenia). There is also a natural locality of this species in Poland, in Wola Zarczycka near Leżajsk. The plant was discovered in 1795 in Volhynian Polesia by an eminent gardener Dionizy Mikler, and its popularity grew thanks to the Botanic Garden affiliated by the Krzemieniec College. Already at the first half of the 19th century Yellow Rhododendron, originating from Volhynian Polesia, was in cultivation in most of European Botanic Gardens. Nowadays this species can be easily found even in small private gardens. It has also been planted in forests. In Volhynian Polesia it grows abundantly in continental mesotrophic oak-pine mixed forests (Querco roboris-Pinetum), sometimes covering 100% of the shrub layer. Its is equally common in continental swamp pine forests (Vaccinio uliginosi-Pinetum). The soils where the species grow are always moist and very acidic (pH below 4). In Volhynia plant communities with R. luteum cover over 1.5 billion ha. In Ukraine the plant is not protected by law.
Źródło:
Rocznik Polskiego Towarzystwa Dendrologicznego; 2009, 57
2080-4164
2300-8326
Pojawia się w:
Rocznik Polskiego Towarzystwa Dendrologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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