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Wyszukujesz frazę "tilia cordata" wg kryterium: Temat


Tytuł:
Reakcja roslinnosci drzewiastej pasow przydroznych Krakowa na zasolenie i pH gleby
Autorzy:
Bach, A
Pawlowska, B
Kraus, D
Malinowska, Z
Pniak, M
Bartynska, M
Powiązania:
https://bibliotekanauki.pl/articles/807708.pdf
Data publikacji:
2006
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
miasta
zadrzewienia przydrozne
Krakow
jesion wyniosly
lipa
klon pospolity
odczyn gleby
klon jawor
Tilia x europaea
zasolenie
reakcje roslin
Acer pseudoplatanus
Tilia cordata
Fraxinus excelsior
drzewa
Acer platanoides
city
roadside afforestation
Krakow city
European ash
lime
Tilia
Norway maple
soil reaction
sycamore
tree
Opis:
W wyniku szczegółowych obserwacji stanu zachowania roślin drzewiastych (klonu pospolitego (Acer platanoides), klonu jaworu (Acer pseudoplatanus), jesionu wyniosłego (Fraxinus excelsior) oraz lip (Tilia cordata, T. x europaea) w pasach drogowych Krakowa stwierdzono masowe występowanie u większości badanych drzew podobnych objawów uszkodzeń, w postaci nekrotycznego zbrunatnienia blaszek liściowych, obejmującego 10-80% powierzchni blaszki oraz przedwczesnego opadania liści, niezależnie od rodzaju i gatunku. Ponadto obserwowano zamieranie pędów, zwłaszcza w środkowej części koron. Susz obejmował niejednokrotnie 80-90% konarów i gałęzi. Często w miejsce przedwcześnie opadłych liści rozwijały się nowe, jasnozielone, o zredukowanej powierzchni blaszki. Analiza fitopatologiczna i entomologiczna badanych próbek drzew wykluczyła działanie organizmów żywych. Wyniki pomiarów próbek gleb, pobranych spod chorych drzew, wykazały nadmierne jej zasolenie - od 0,5 do 0,8 mS·cm⁻¹. Stwierdzono również występowanie podwyższonego alkalicznego odczynu podłoża, przyjmującego wartość w zakresie pH 8-10. Biorąc pod uwagę całokształt wyników obserwacji sugeruje się, że masowe uszkodzenia drzew w pasach przydrożnych centrum Krakowa są spowodowane zniszczeniem gleby jako środowiska wzrostu korzeni drzew, w szczególności nadmiernym jej zasoleniem i alkalizacją.
As a result of the thorough observation of the performance of tree plants (Acer platanoides, Acer pseudoplatanus, Fraxinus excelsior and Tilia cordata, T. x europaea) along the communication routes of Kraków a significant demonstration of similar damage was detected. In particular, it took the forms of necrotic browning of leaves, this effect concerned from 10 to 80 % of the leaves or the premature falling of leaves regardless of the genus or species. In addition dying of branches was observed, in particular in the middle part of the tree crones. The dryness frequently concerned as much as 80-90% of twigs and branches. Often in the place of fallen leaves new ones were formed, however with a smaller surface of the blade leaf (20-30% decrease of leaf area). The phytopathological and entomological analysis of the examined tree samples excluded an influence of any living organisms. The results of the analysis of the soil samples collected from under the damaged trees showed that it was high salinated, from 0.5 to 0.8 mS·cm⁻¹. It was also determined that there is a higher alkaic pH factor of the ground (about 8-10). Taking into consideration the entire results of the observation it is suggested that the massive damages to the trees along the communication routes of the centre of Kraków are caused by the destruction of soil as a environment of root growth, in particular its excessive salinity and alkalisation.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2006, 510, 1; 39-48
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
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:
Effect of street conditions, including saline aerosol, on growth of the Small-leaved limes
Wpływ warunków przyulicznych, w tym aerozolu solnego, na wzrost lip drobnolistnych
Autorzy:
Borowski, J.
Pstragowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/888469.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Dendrologiczne
Tematy:
Small-leaved lime
Tilia cordata
environment pollution
lime
plant growth
saline aerosol
salinity stress
street condition
street habitat
street tree
tree size
urban tree
Opis:
There is increasing number of trees dying in large urban agglomerations. The problem is mostly pronounced in the case of street trees. In Polish cities, apart of pollutions generated by traffic, an important factor that causes death of trees is high salt concentration as a result of winter salt application for de-icing of streets. The aim of the study was to assess the growth of limes (Tilia cordata) planted along highly trafficked Warsaw street and exposed, among others, to salt in a form of saline aerosol. The assessment of shoot length, tree height and crown volume, based on the photographic method of the three increment assessments, showed very restrained growth of the studied limes. In the years 2006-2008 the trees performed so poorly as in similar period of 2003-2005 and grew worse than limes form natural habitats. In 2009 we even observed decrease in size of street trees as compared to 2008 which suggests both very bad condition of street habitats and the studied trees. Salt concentration measured on the surface of tree buds and shoots (EC) was higher in street trees than in trees from natural habitats, which indicates that saline aerosol is the source of sodium chloride. We observed highly diversified reactions of individual trees to the whole complex of street conditions. It is therefore recommended to select for propagation individuals from among most tolerant and vigorously growing plants (genotypes) to be used in street planting.
Źródło:
Rocznik Polskiego Towarzystwa Dendrologicznego; 2010, 58
2080-4164
2300-8326
Pojawia się w:
Rocznik Polskiego Towarzystwa Dendrologicznego
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:
Sensitivity of Tilia cordata seeds to dehydration and temperature of liquid nitrogen
Autorzy:
Chmielarz, P
Powiązania:
https://bibliotekanauki.pl/articles/41625.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
dehydration
drying
liquid nitrogen
temperature
Tilia cordata
forest habitat
sensitivity
scarification
cryopreservation
seed
Opis:
The aim of the study was to assess the susceptibility of small-leaved lime (Tilia cordata Mill.) seeds to drying and freezing in liquid nitrogen (-196°C). Seed samples were frozen in liquid nitrogen for 24 h at 11 different levels of seed moisture content (m.c.), ranging from 3.1% to 22.8% (fresh weight basis). All samples, including unfrozen control samples, were subjected to scarification with concentrated sulphuric acid (Tylkowski 1998) either before or after freezing. Seed pre-treatment before germination (at 3~15°C/16~8h) involved cold stratification at 3°C without substrate. Seed drying to 3.1% m.c. significantly reduced their germinability (to 63%), as compared to the high germinability (82-88%) of seeds with 5.2-20.9% m.c. Thus seeds of this species can be assigned to the ‘suborthodox' category. Such a high germinability (79-87%) was preserved after freezing in liquid nitrogen in samples dried to 9.0-17.4% m.c. if scarification was performed before freezing, and in samples dried to 9.1-16.2% m.c. if scarification was performed after freezing. The highest percentage of seedlings emerged after freezing in liquid nitrogen from seeds dried to 11.1-20.1% m.c. (emergence 65-75%) if scarification was performed before freezing, and from seeds dried to 7.3-17.8% m.c. (emergence 53%-71%) if scarification was performed after freezing.
Źródło:
Dendrobiology; 2002, 47 Supplement
1641-1307
Pojawia się w:
Dendrobiology
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:
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:
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:
Półnaturalna przebudowa lipą drzewostanów sosnowych w Nadleśnictwie Doświadczalnym Siemianice
Semi-natural transformation of pine stands with lime trees in the Siemianice Experimental Forest District
Autorzy:
Jaszczak, R.
Magnuski, K.
Stefaniak, I.
Winkler, A.
Powiązania:
https://bibliotekanauki.pl/articles/1009712.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewostany sosnowe
Tilia cordata
wzrost roslin
lipa drobnolistna
przebudowa polnaturalna
pozycja biosocjalna drzew
przebudowa drzewostanow
lesnictwo
Nadlesnictwo Doswiadczalne Siemianice
przyrost drzew
drzewa lesne
pine stand
semi−natural transformation
lime
breast height diameter structure
height structure
biosocial
structure
Opis:
The paper presents results of the inventories carried out in years 2000 and 2001 in a two−storeyed stands whose upper storey was made up of pine and the lower one – of lime. Lime breast height diameter and height as well as biosocial structures were discussed.
Źródło:
Sylwan; 2009, 153, 07; 442-450
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Struktura drzewostanów lipowo-sosnowych powstałych w wyniku półnaturalnej przebudowy starodrzewów sosnowych
Structure of lime-pine stands established as a result of seminatural reconstruction of old pine forests
Autorzy:
Jaszczak, R.
Małys, L.
Turski, M.
Hnat, M.
Majowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1008329.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany sosnowe
starodrzew
przebudowa drzewostanow
przebudowa polnaturalna
drzewostany lipowo-sosnowe
struktura drzewostanu
drzewa lesne
sosna zwyczajna
Pinus sylvestris
lipa drobnolistna
Tilia cordata
wzrost roslin
pozycja biosocjalna drzew
struktura piersnic
struktura wysokosci
old pine forest
seminatural reconstruction
pine
lime
structure of breast height diameter
height structure
biosocial structure
Opis:
The paper presents results of the inventory carried out in 2008 in two−storeyed stands in which the upper storey consisted of pine trees and the lower one of lime trees. The structure of breast height diameter, height and the biosocial structure of the two species was discussed.
Źródło:
Sylwan; 2012, 156, 05; 360-368
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamika zmian budowy, struktury i składu gatunkowego drzewostanów o charakterze pierwotnym na wybranych powierzchniach w Pienińskim Parku Narodowym
The dynamics of changes in the structure and species composition of primary forest stands in selected areas of Pieniny National Park
Autorzy:
Jaworski, A.
Jakubowska, D.
Powiązania:
https://bibliotekanauki.pl/articles/46122.pdf
Data publikacji:
2011
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
parki narodowe
Pieninski Park Narodowy
drzewostany pierwotne
budowa drzewostanu
struktura drzewostanu
sklad gatunkowy
zmiany skladu gatunkowego
zmiany zasobnosci
zmiany struktury drzewostanu
zmiany struktury piersnic
buk zwyczajny
Fagus sylvatica
jodla pospolita
Abies alba
klon jawor
Acer pseudoplatanus
lipa drobnolistna
Tilia cordata
wiaz gorski
Ulmus glabra
swierk pospolity
Picea abies
Źródło:
Leśne Prace Badawcze; 2011, 72, 4
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienności i wzajemna korelacja wybranych cech fizycznych nasion lipy drobnolistnej (Tilia cordata Mill.)
Variability and correlation of selected physical attributes of small−leaved lime (Tilia cordata Mill.) seeds
Autorzy:
Kaliniewicz, Z.
Poznański, A.
Powiązania:
https://bibliotekanauki.pl/articles/993926.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
lipa drobnolistna
Tilia cordata
nasiona
cechy fizyczne
predkosc krytyczna
kat tarcia slizgowego
wymiary nasion
masa nasion
wspolczynnik ksztaltu
pole przekroju poprzecznego
objetosc nasion
gestosc nasion
zmiennosc cech
korelacja cech
tilia cordata
seeds
physical attributes
correlations
Opis:
Critical transport velocity, thickness, width, length, angle of sliding friction and weight of small−leaved lime (Tilia cordata Mill.) seeds from five batches, harvested in four neighboring seed regions in Poland, were determined. The values of shape factor, cross−sectional area, volume and density were calculated for each seed. The results were compared using standard statistical methods (simple ANOVA, correlation, single−variable and multivariate regression analysis). The highest correlation was observed between weight of seeds and their thickness and width. Majority of regression equations developed in the study was characterized by a relatively high percentage of explained variation, taking into account the type of experimental material.
Źródło:
Sylwan; 2013, 157, 01; 39-46
0039-7660
Pojawia się w:
Sylwan
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:
Występowanie roztoczy (Acari) w bryłkach korzeniowych wybranych gatunków sadzonek w szkółce kontenerowej Bielawy
Occurrence of mites (Acari) in culture media of selected species of seedlings in the container nursery Bielawy
Autorzy:
Klimek, A.
Powiązania:
https://bibliotekanauki.pl/articles/61982.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
szkolki lesne
szkolki kontenerowe
szkolka lesna Bielawy
sosna zwyczajna
Pinus sylvestris
swierk pospolity
Picea abies
brzoza brodawkowata
Betula pendula
lipa drobnolistna
Tilia cordata
sadzonki
brylki korzeniowe
roztocze
Acari
mechowce
Oribatida
liczebnosc
sklad gatunkowy
Opis:
Celem badań było określenie liczebności i składu grupowego roztoczy (Acari) oraz składu gatunkowego mechowców (Oribatida) w bryłkach korzeniowych sadzonek wybranych gatunków drzew – sosny zwyczajnej, świerka pospolitego, brzozy brodawkowatej, lipy drobnolistnej – w szkółce kontenerowej Bielawy. Badania terenowe przeprowadzono 15 listopada 2012 r. na otwartym polu produkcyjnym szkółki, z każdej bryłki pobrano po dwie próbki substratu (wraz z korzeniem) o objętości 50 cm3 każda – z górnej (A) i dolnej części (B). Roztocze wypłaszano w aparatach Tullgrena przez 7 dni i konserwowano w 70% alkoholu etylowym. Zagęszczenie roztoczy w warstwie A wahało się od 18,67 do 219,67 osobn. · 100 cm-3 substratu. Pajęczaki te znacznie liczniej występowały w kontenerach sadzonek gatunków liściastych niż iglastych. W dolnej warstwie podłoża sadzonek zagęszczenie było o 40% niższe niż w warstwie A. Roztocze z rzędów Actinedida, Mesostigmata i Oribatida stwierdzono w kontenerach wszystkich gatunków sadzonek, w obydwu warstwach substratu. Najliczniejsze były mechowce, a Acaridida i Tarsonemida występowały nielicznie. Ogółem w zbadanych próbkach odnotowano 6 taksonów mechowców – najwięcej (5) było w sadzonkach świerka, a w sośnie, brzozie i lipie 1 lub 2. Wskaźnik średniej liczby gatunków s w warstwach A i B był wyższy u liściastych gatunków sadzonek. Najliczniejszym mechowcem w analizowanych kontenerach była Oppiella nova – w warstwie A zagęszczenie wynosiło od 6,67 do 215,13, a w warstwie B od 0,40 do 119,80 osobn. · 100 cm-3 podłoża. Najlepsze warunki rozwoju dla populacji Oppiella nova panowały w bryłkach korzeniowych lipy drobnolistnej, a następnie brzozy brodawkowatej. Liczne występowanie tego mechowca w bryłkach korzeniowych zbadanych sadzonek może świadczyć o dobrym stanie ektomikoryz.
The purpose of the study was to determine the abundance and the composition of the group (Oribatida) in clods of roots of selected tree species – Scots pine, Norway spruce, Silver birch, Littleleaf linden – in the container nursery Bielawy. Field studies were carried out in 15 November 2012 on the open production area. Two samples of substrate (with roots) – from the upper (A) and the lower part (B) – were taken from the each clod. Volume of each sample amounted 50 cm3. Mites were extracted from the material in high gradient Tullgren funnels during 7 days and maintained in 70 % ethanol. Abundance of mites in the layer A ranged from 18.67 to 219.67 individuals · 100 cm-3 of substrate. These arachnids were more abundant in containers with hardwood species than in those with coniferous species. Abundance of mites in the lower layer of the culture media was 40 % lower than that in the layer A. Mites belonging to the orders: Actinedida, Mesostigmata and Oribatida were found in containers of all seedling species, in both layers of substrate. The most abundant were oribatid mites, and – among them – the Acaridida i Tarsonemida were the most numerous. In examined samples there were 6 taxons of oribatid mites: 5 – in Norway spruce seedlings, and 1-2 – in seedlings of Scots pine, Silver birch and Littleleaf linden. Index of the average species number s in layers A and B were higher in case of hardwood species seedlings. The most abundant oribatid mite species was Oppiella nova – its abundance in the layer A ranged from 6.67 to 215.13, and in the layer B from 0.40 to 119.80 individuals · 100 cm-3 of substrate. Best conditions for the development of Oppiella nova population were created in clods with Littleleaf linden roots, and then – in those of Silver birch. Numerous occurrence of this oribatid mite species can indicate a good condition of ectomycorrhizas.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2013, 3/I
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł

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