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Tytuł:
Distribution and natural regeneration of Tilia cordata Mill. in Ukrainian plain forests in a changing climate
Autorzy:
Rumiantsev, Maksym
Luk'yanets, Volodymyr
Kobets, Oleksii
Obolonyk, Iryna
Tarnopilska, Oksana
Pozniakova, Svitlana
Musienko, Sergiy
Tupchii, Olha
Powiązania:
https://bibliotekanauki.pl/articles/2041224.pdf
Data publikacji:
2021
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
advance growth
associated species
mixed stands
productivity
stand origin
Opis:
The aim of this study was to assess the current state of small-leaved lime stands under climate change, as well as to identify optimal conditions for the occurrence and further growth of natural lime regeneration under the stand canopy to grow productive and sustainable mixed stands. The areas of small-leaved lime (Tilia cordata Mill.) stands in plain Ukrainian forests and mixed stands with English oak (Quercus robur L.) were defined according to reference materials (as of 2016). Growth and liveability peculiarities of natural regeneration of lime under the canopy of oak-lime stands in climate change were identified. The main stand characteristics contributing to maximal appearance and further development of advance growth of lime, such as composition, age and relative density of stocking, were determined. It was found that the lime stands of vegetative origin occupy the largest part of the lime forests’ area, being less resilient and productive than those originated from seeds. Small-leaved lime is the best associated species in mixed oak stands. The presence of lime improves health, assortment composition, and productivity of oak stands and increases their resistance against pests and diseases. In the future, lime can play an important role in the adaptation of forests to climate change due to its biological and forest properties and adaptability to a sustainable existence in a relatively wide range of environmental conditions. A summary of the studies complements a system of knowledge about the current state of lime stands as well as peculiarities of their regeneration and growth. The data obtained can be used as a theoretical base for forest management to promote natural regeneration and maintain the sustainability of these forests.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2021, 63, 2; 125-137
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First record of slime molds in Biebrza National Park (NE Poland)
Autorzy:
Ślusarczyk, Dominika Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/11543419.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
slime mould
first record
myxomycete
eukaryotic organism
ecology
protected area
Tilia cordata
Acer platanoides
Betula pendula
Carpinus betulus
Biebrza National Park
Polska
Opis:
This paper provides the first recorded data of slime molds in Biebrza National Park (NE Poland). In total, 16 species of myxomycetes belonging to nine genera were observed.
Źródło:
Acta Mycologica; 2021, 56, 1; 564
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problematyka uprawy lipy drobnolistnej Tilia cordata Mill. na plantacjach nasiennych
Potential problems in cultivating Tilia cordata Mill. in seed orchards
Autorzy:
Kesy, M.
Fliszkiewicz, M.
Banaszak-Cibicka, W.
Powiązania:
https://bibliotekanauki.pl/articles/2142617.pdf
Data publikacji:
2021
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
nasiennictwo
plantacje nasienne
lipa drobnolistna
Tilia cordata
plonowanie
plony nasion
Opis:
the first seed orchards of lime trees Tilia cordata Mill. were established in Poland in the Susz Forest district in 1985. Currently, there are 21 seed orchards of this species in the country in order to satisfy the seed demand and preserve the species as well as genetic diversity. due to disease symptoms occurring on Tilia trees and irregular fruiting, an attempt was made to collect information on the problems of seed orchards and their characteristics in Poland. In order to achieve this goal, the average annual seed yield and the total amount of seeds collected in plantations located in Poland were analyzed and compared. each of the selected plantations currently has several dozen different Tilia clones, which mainly serve to preserve the genetic diversity. these orchards are producing seeds from which new tree seedlings are grown and therefore increases in yield are desired. In this study, we analysed orchard location and their seed yield based on the information provided by Forest districts and the National Seed register, in which foresters record data on the collection of seeds as well as breeding difficulties resulting from unsuitable soil types. we were able to determine that the seed yield is primarily influenced by the age of the trees. In addition, trees are exposed to changing weather conditions each year, which may not always be conducive to seed formation. Furthermore, it is during seed collection that disease symptoms or nutritional deficiencies of trees are noticed and recorded, which may not occur every year due to variability in seed formation and demand. In addition, trees are exposed to changing weather conditions each year, which may not be conducive to seed formation.
Źródło:
Leśne Prace Badawcze; 2021, 82, 1; 31-36
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aktywność mikrobiologiczna i biochemiczna pod sadzonkami klonu zwyczajnego oraz lipy drobnolistnej rosnącymi na osadzie pogórniczym silnie zanieczyszczonym pierwiastkami śladowymi
Microbiological and biochemical activity under Norway maple and small-leaved lime seedlings growing on post-mining sediment with high trace elements contamination
Autorzy:
Mocek-Płóciniak, A.
Mleczek, M.
Skowrońska, M.
Powiązania:
https://bibliotekanauki.pl/articles/979207.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
klon pospolity
Acer platanoides
lipa drobnolistna
Tilia cordata
badania wazonowe
zanieczyszczenia gleb
arsen
mikroorganizmy glebowe
aktywnosc enzymatyczna
leśnictwo
tereny pogrónicze
rekultywacja leśna
osady pogórnicze
pierwiastki składowe
aktywność mikrobiologiczna
aktywność biochemiczna
arsenic
heavy metals
post−mining sediment
microorganisms
enzymatic activity
Opis:
The aim of the study was to determine the abundance of soil microbiome and enzymatic activity in a control soil sample and in samples with post−mining sediment containing high concentrations of arsenic and some trace elements. The samples were collected under two−year−old seedlings of Norway maple (Acer plantanoides L.) and small−leaved lime (Tilia cordata Mill.), which came from the Pniewy Forest District (western Poland). Optical emission spectrometry with excitation in plasma induced by the Agilent 5110 ICP−OES spectrometer was applied to analyse the concentration of arsenic and other heavy metals in the substrates and plant material. Before analysis the samples were mineralised with concentrated (65%) nitric acid (V). The count of selected groups of soil microorganisms was measured with the serial dilution method by Koch. The microbiome was measured on selective media. The activity of dehydrogenases as well as acid and alkaline phosphatase was measured spectrophotometrically. The soil and sediment on which the seedlings grew were characterised by the following physicochemical parameters: soil texture (control – loamy sand, sediment – silt), pH (control – 5.85−5.92, sediment – 7.13−7.43), the content of phosphorus (control – 117−121 mg/kg, sediment – 38−46 mg/kg), potassium (control – 6.97−7.03 mg/kg, sediment – 57−61 mg/kg), nitrogen (control – 0.53−0.65 mg/kg, sediment – 1.7−2.1 mg/kg) and total carbon (control – 9.4−10.2 g/kg, sediment – 54.2−57.2 g/kg). The samples contained: control – 0.24 mg/kg, sediment – 282 mg/kg of Astotal, control – below the detection limit, sediment – 1,766 and 16,220 mg/kg of As(III) and (V) respectively. The counts of the microorganisms were lower (103−105) than in typical arable soils (105−109). The counts of bacteria and actinobacteria under the lime seedlings in the control were greater than in the sediment, whereas the counts of moulds were roughly identical. The counts of bacteria and moulds in the sediments under the maple seedlings were greater than in the control, whereas the counts of actinobacteria were roughly identical. The sediments under both species exhibited higher alkaline and acid phosphatase activity than the control soil sample. Only dehydrogenases exhibited higher activity in the control soil under both tree seedlings.
Źródło:
Sylwan; 2020, 164, 02; 127-132
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Odnowienie naturalne drzew w Puszczy Białowieskiej
Natural regeneration of trees in the Bialowieza Forest
Autorzy:
Brzeziecki, B.
Andrzejczyk, T.
Żybura, H.
Powiązania:
https://bibliotekanauki.pl/articles/985949.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Puszcza Bialowieska
odnowienia naturalne
drzewa lesne
topola osika
Populus tremula
brzoza brodawkowata
Betula pendula
brzoza omszona
Betula pubescens
olsza czarna
Alnus glutinosa
sosna zwyczajna
Pinus sylvestris
dab szypulkowy
Quercus robur
jesion wyniosly
Fraxinus excelsior
klon pospolity
Acer platanoides
wiaz gorski
Ulmus glabra
swierk pospolity
Picea abies
lipa drobnolistna
Tilia cordata
grab pospolity
proces dorastania
ekosystemy lesne
dynamika lasu
active approach
deer browsing
long−term study
multifunctional forest management
natural recruitment
nature conservation
silvicultural treatment
strict protection
tree competition
tree diversity
Opis:
Since several years already, a massive infestation of bark beetle has taken place in the Białowieża Forest, decimating a local Norway spruce population. In consequence, many open areas appeared, practically deprived of trees and other forest vegetation. The existence of such areas has a very negative impact on multiple values of the Białowieża Forest: natural, social, economical and landscape−aesthetic values. The local forest administration prepared a strategy aimed at active restoration of diverse woodland communities typical for the Białowieża Forest in all places, where bark beetle infestation wiped up the spruce stands. Those plans were criticized by representatives of the environmental organizations who blamed the foresters for transforming the Białowieża Forest into ‘plantation’ and claiming that such measures are inconsistent with the existing forest management and protection plan. The postulate of environmentalists is that the recovery of woodland communities should proceed completely naturally. Taking into account the above mentioned controversies, in this paper we examine the issue of natural regeneration in the Białowieża Forest in detail. In particular, we try to determine to which extent this method of forest reproduction enables re−establishment of compositionally diverse woodland communities, distinguished by a high level of biological diversity and able to provide a wide range of commodities and benefits important for today’s society. Based on an extensive literature review we show that a combination of different (abiotic and biotic) factors, influencing establishment and subsequent growth of seedlings and saplings in the Białowieża Forest has long been strongly unfavorable for many tree species. In this regard, one should particularly emphasize the negative role of large herbivores, especially red deer, which is present in the Białowieża Forest since the end of 19th century, when it became a private hunting ground for Russian tzars. The devastating effect of deer browsing on natural regeneration is a well−documented phenomenon and widely recognized problem in the forestry practice. The fencing of young forest generation against game pressure is an indispensable measure, needed to secure the continuous existence of several tree species (first of all those palatable and vulnerable to browsing). Very strong arguments for an active approach to the described problem delivers also a long−term study on natural forest dynamics conducted since 1936. It shows that under conditions of strict protection the regeneration capacity of the Białowieża tree species is very variable. These differences lead to the compositional simplification and impoverishment of many tree stands, with numerous negative consequences for local biodiversity. We underline that an active management strategy is a basic prerequisite for maintaining a diverse character of the Białowieża stands and their ability to provide all important ecosystem services on a sustainable basis. Such a strategy should include, beside of the phase of establishment, also the subsequent developmental stages of new forest generations. The general goal of such a strategy should be to secure a possibly high diversity of tree composition and to enable the development of tree species representing a full range of life−history strategies and playing different successional roles: from typical pioneer species, through intermediate, to climax species.
Źródło:
Sylwan; 2018, 162, 11; 883-896
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gościu siądź pod mym liściem...
Autorzy:
Olszowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/847031.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Przyrodników im. Kopernika
Tematy:
drzewa lisciaste
lipa
Tilia
lipa drobnolistna
Tilia cordata
lipa szerokolistna
Tilia platyphyllos
owady
drewno lipowe
wykorzystanie
wierzenia ludowe
Źródło:
Wszechświat; 2017, 118, 07-09
0043-9592
Pojawia się w:
Wszechświat
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zasoby drzewne lipy drobnolistnej (Tilia cordata Mill.) w Lasach Państwowych
Resources of small-leaved lime (Tilia cordata Mill.) in the State Forests
Autorzy:
Gil, W.
Zajączkowski, G.
Powiązania:
https://bibliotekanauki.pl/articles/986717.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy panstwowe
Panstwowe Gospodarstwo Lesne Lasy Panstwowe
drzewa lesne
lipa drobnolistna
Tilia cordata
zasoby drzewne
miazszosc drzew
small−leaved lime
yield
forest sites
overstory
undergrowth
Opis:
We analyzed data on wood resources of small−leaved lime in the forests managed by the State Forests, depending on the type of occurrence, age of trees, type of forest site, soil and region of the country. Particular attention was paid to the mature and close−to−mature stands with lime occurring in the overstory and undergrowth. We pointed regions and habitat conditions that are most favorable for the growth of small−leaved lime, from the point of view of its productivity. As for January 1st, 2016, the wood resources of lime amounts to 5.4 million m3 of timber. The largest part occurs in Wrocław and Olsztyn Regional Directorates of the State Forests. About 89% of the total timber resources of lime is located in the stands overstory. The timber volume of mature and close−to−mature stands (aged over 60) is 71% of the total volume. 50% of the wood resources of this layer is located in stands with 10 and 20% share of lime. The greatest average timber volume (255 m3/ha) was stated in stands with the share of lime at the level of 90%, while the average volume of the overstory is nearly 160 m3/ha. Also the wood resources of lime trees in undergrowth grows with the growing share of this species to reach about 90 m3/ha in the case of pure lime undergrowth. The largest volume is characteristic for stands with lime trees in the IV and V age classes. The lime stands growing on fresh forest and upland forest sites, and on brown and rusty soils are the most productive. The richest lime stands in the country, growing on fresh and moist forest habitats, reach over 500 m3/ha. We observe a small but steady increase in the share of small−leaved lime in the stands managed by the State Forests, in terms of both surface and volume.
Źródło:
Sylwan; 2017, 161, 10; 812-821
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Możliwości zastosowania metod analizy obrazu w pomiarach dendrochronologicznych
Possibilities of image processing application in dendrochronological measurement process
Autorzy:
Barniak, J.
Danek, M.
Fabijanska, A.
Powiązania:
https://bibliotekanauki.pl/articles/880746.pdf
Data publikacji:
2016
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
drzewa
lipa drobnolistna
Tilia cordata
dendrochronologia
sloje przyrostu rocznego
szerokosc
drewno rozpierzchlonaczyniowe
skanowanie wywiertow
analiza obrazu
algorytm adaptacyjny
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2016, 18, 3[48]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of air pollutants in an urban agglomeration in Poland made by the biomonitoring of trees
Autorzy:
Chwil, S.
Kozlowska-Strawska, J.
Tkaczyk, P.
Chwil, P.
Matraszek, R.
Powiązania:
https://bibliotekanauki.pl/articles/961597.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
assessment
air pollutant
environment pollution
heavy metal
nitrogen
sulphur
urban agglomeration
Polska
tree
leaf
Populus tremula
Sorbus aucuparia
Tilia cordata
biomonitoring
Opis:
In 1970-2000, the state of the natural environment in many regions of Poland was unsatisfactory. This situation has been improving since the integration with the European Union, mainly owing to the reduction of emissions of sulphur and nitrogen oxides. The present study included three tree species: rowan (Sorbus aucuparia L. em. Hedl.), small-leaved lime (Tilia cordata Mill.), and aspen (Populus tremula L.). The trees grew in a pollution free environment (Huszlew) and in an urban agglomeration (Lublin). The aim of this research was to make comparative observations of the structure of leaves in relation to the content of lead, zinc, copper, nitrogen and sulphur determined in these organs. The N/S ratio in the leaves was accepted as an indicator of proper metabolic processes. Observations of leaves were made with using light microscopy and the scanning electron microscopy (SEM) technique. The content of heavy metals in leaves was determined by atomic absorption spectrometry (AAS) after dry mineralization. Total sulphur was determined by the turbidimetric method, while nitrogen by the Kjeldahl method after mineralization in sulphuric acid. When influenced by polluted air, the epidermis of the examined leaves was composed of smaller cells with higher stomatal density per unit area and had a lower number of open pores compared to the epidermis of the leaves developed in a clean environment. Among the species investigated, aspen was characterized by the highest ability to bioaccumulate heavy metals in its leaves. Among the elements determined only the Zn content exceeded the permissible limit, whereas Pb and Cu were found to occur in the range of values considered to be optimal. The dominant share of lead in suspended dust caused changes in the epidermis of leaves, which led to disorders in plant water relations.
Źródło:
Journal of Elementology; 2015, 20, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the effect of environmental variables on health status of Tilia cordata Mill. in parks
Ocena wpływu zmiennych środowiskowych na stan zdrowotny lipy drobnolistnej w parkach
Autorzy:
Świerk, D.
Krzyżaniak, M.
Walerzak, M. T.
Urbański, P.
Powiązania:
https://bibliotekanauki.pl/articles/387889.pdf
Data publikacji:
2015
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
urbanized areas
environmental changes
Poznań
statistical models
tereny zurbanizowane
zmienne środowiskowe
modele statystyczne
Opis:
Analyses concerned the effect of different environmental variables on the health status of little-leaf linden (Tilia cordata Mill.). The study comprised analyses and statistical models based on discriminatory analysis. These analyses indicated which variables may influence the health status of tress of the investigated species in the parks of Poznan. The model was based on the canonical variate analysis (CVA), ie Fisher’s canonical variant of linear discriminatory analysis (LDA). The greatest negative effect on the health status of trees of Tilia cordata Mill. in Poznan parks was found for the small distance of the parks from the city centre and the immediate vicinity of two arterial roads. It was also found that the vicinity of buildings heated with fossil fuels, primarily coal, may have had a negative effect on the health status of Tilia cordata Mill. trees in the Poznan parks. Moreover, it was shown that specimens of the investigated species aged 81–120 years were characterised by the worst health status, while the best health condition was found in trees of Tilia cordata Mill. in the Millennium Park.
Badania dotyczyły wpływu różnych zmiennych środowiskowych na stan zdrowotny lipy drobnolistnej (Tilia cordata Mill.). W pracy wykorzystano analizy i modele statystyczne stworzone w oparciu o analizę dyskryminacyjną. Wynikiem przeprowadzonych analiz było wykazanie, które zmienne mogą wpływać na stan zdrowotny drzew badanego gatunku na terenie parków Poznania. Do skonstruowania modelu wykorzystano analizę CVA (canonical variate analysis) – kanoniczną odmianę liniowej analizy dyskryminacyjnej Fishera (LDA). Stwierdzono, że największy negatywny wpływ na stan zdrowotny drzew Tilia cordata Mill. w parkach Poznania miała niewielka odległość parków od centrum miasta oraz bezpośrednia bliskość dwóch arterii komunikacyjnych. Stwierdzono również, że bliskość zabudowań ogrzewanych paliwami kopalnymi, przede wszystkim węglem kamiennym, mogły wpływać negatywnie na stan zdrowotny drzew Tilia cordata Mill. na terenie parków Poznania. Wykazano również, że osobniki drzew badanego gatunku z przedziału wiekowego 81–120 lat charakteryzowały się najgorszym stanem zdrowotnym, a najlepszą zdrowotność drzew Tilia cordata Mill. stwierdzono w Parku Tysiąclecia Państwa Polskiego.
Źródło:
Ecological Chemistry and Engineering. A; 2015, 22, 3; 351-361
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dendrochronologia lipy drobnolistnej (Tilia cordata Mill.) z południowej Polski
Dendrochronology of small-leaved lime (Tilia cordata Mill.) in southern Poland
Autorzy:
Barniak, J.
Wilczynski, S.
Krapiec, M.
Powiązania:
https://bibliotekanauki.pl/articles/880923.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
drzewa lisciaste
lipa drobnolistna
przyrosty radialne
analiza dendrochronologiczna
dendroklimatologia
Polska Poludniowa
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2014, 16, 3[40]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Milling quality of small-leaved lime (Tilia cordata Mill.) wood
Jakość frezowania profilowego drewna lipy drobnolistnej (Tilia cordata Mill.)
Autorzy:
Pinkowski, G.
Szymanski, W
Powiązania:
https://bibliotekanauki.pl/articles/7407.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2014, 85
1898-5912
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Występowanie drzewostanów z udziałem lipy drobnolistnej (Tilia cordata Mill.) na terenie zarządzanym przez Lasy Państwowe
Occurrence of stands with small-leaved lime (Tilia cordata Mill.) in the forests managed by the State Forests
Autorzy:
Gil, W.
Zajączkowski, G.
Powiązania:
https://bibliotekanauki.pl/articles/990866.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Panstwowe Gospodarstwo Lesne Lasy Panstwowe
drzewostany
struktura drzewostanu
drzewa lesne
lipa drobnolistna
Tilia cordata
wystepowanie
tilia cordata
stand structure
the state forests
Opis:
The paper concerns the occurrence of small−leaved lime in the Polish forests on the basis of stand description contained in the main database of the State Forests. The analysis includes the geographical occurrence of lime in all forest layers and according to age class of stands with lime as well as their habitat and soil preferences. Special attention was paid to the stands with lime as the dominant species.
Źródło:
Sylwan; 2014, 158, 10; 743-753
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary studies on the structure of sepals and trichomatous nectaries in flowers of Tilia cordata Mill
Wstępne badania nad strukturą działek kielicha i nektarników trichomowych w kwiatach Tilia cordata Mill
Autorzy:
Konarska, A.
Powiązania:
https://bibliotekanauki.pl/articles/11542737.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
Tilia cordata is a good source of food attractants for bees. These insects are the primary pollinators of flowers of this species. Nectar is produced in the floral trichomatous nectaries located on a projection of the adaxial, basal part of the sepals. There were two types of non-glandular hairs on the sepals; the first one to prevent the nectar from flowing out beyond the sepal and the other type to protect the nectary itself. The clavate secretory trichomes, forming dense clusters, are composed of a base, stalk, and multicellular head. The secretory cells of the trichome head contain a thick cytoplasm and a large nucleus; they are also characterized by a low degree of vacuolation. Nectar accumulates at the tip of the trichome in the space formed between the cell wall of the head cells and the cuticle. The several-layered subepidermal glandular parenchyma with densely packed cells is provided with vascular bundles containing xylem and phloem. Plastids containing small starch grains were noticed in many cells of the nectariferous tissue, whereas phenolic compounds were found in the adaxial epidermal cells of the sepals. No presence of starch, lipids, or phenolic compounds was found in the cells of the glandular hairs. However, numerous chloroplasts, calcium oxalate crystals and large mucilage cavities occurred in the subglandular tissue.
Tilia cordata jest dobrym źródłem atraktantów pokarmowych dla pszczół. Owady te są głównymi zapylaczami kwiatów tego gatunku. Nektar wytwarzany jest w trichomowych nektarnikach kwiatowych zlokalizowanych na uwypukleniu nasadowej części dziłek kielicha. Na działkach kielicha o łódeczkowatym kształcie występują dwa rodzaje włosków mechanicznych: osłaniające nektarniki i zapobiegające wypłływaniu nektaru. Maczugowate włoski sekrecyjne tworzące gęste skupienia są zbudowane z podstawy, trzonka i wielokomórkowej główki. Komórki wydzielnicze główki trichomów zawierają gęstą cytoplazmę i duże jądro komórkowe oraz charakteryzują się słabym stopniem wakuolizacji. Nektar gromadzi się na szczycie w łoska, w przestrzeni tworzącej się między ścianą komórkową komórek główki a kutykulą. Kilkuwarstwowa, podepidermalna parenchyma gruczołowa o zwartym ułżoeniu komórek zaopatrzona jest w wiązki przewodzące, które zawierają drewno i łyko. W wielu komórkach tej tkanki zaobserwowano plastydy zawierające drobne ziarna skrobi, natomiast w komórkach epidermy adaksialnej działek kielicha występowały związki fenolowe. W komórkach trichomów gruczołowych nie stwierdzono obecności skrobi, lipidów oraz związków fenolowych. Natomiast w tkance podgruczołowej występowały liczne chloroplasty, kryształy szczawianu wapnia oraz komory śluzowe.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2013, 12, 2; 63-74
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Evaluation of Factors Determining the Health Condition of Acer Platanoides and Tilia Cordata Plantings in Selected Sites of Urban Greenery in Poznań, Poland
Autorzy:
Wilkaniec, B.
Borowiak-Sobkowiak, B.
Wilkaniec, A.
Bres, W.
Fruzynska-Jozwiak, D.
Powiązania:
https://bibliotekanauki.pl/articles/66035.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Heavily urbanised areas are not a favourable habitat for plant growth and development. On the other hand, urbanised areas can be a favourable habitat for harmful fauna. Tin our study, those trees growing along the roadside were more heavily infested by pests than trees growing in parks. Three orders of insects, mites and lugs were identified on the Norway maple. The dominant insect species was Periphyllus aceris. On small-leaved lime four insect orders (the dominant species was and Eucallipterus tiliae) and mites were found. An overall visual inspection confirmed that of maple and lime growing in city parks were in better condition than those growing by roads.
Źródło:
Journal of Plant Protection Research; 2013, 53, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 37

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