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Wyszukujesz frazę "spruce" wg kryterium: Temat


Tytuł:
Response of Scots pine (Pinus sylvestris), Norway spruce (Picea abies) and Douglas fir (Pseudotsuga menziesii) needles to environment pollution with flourine compounds
Reakcja igieł sosny zwyczajnej (Pinus sylvestris), świerka pospolitego (Picea abies) i daglezji zielonej (Pseudotsuga menziesii) na zanieczyszczenie środowiska przez związki fluoru
Autorzy:
Karolewski, P.
Siepak, J.
Gramowska, H.
Powiązania:
https://bibliotekanauki.pl/articles/41105.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Norway spruce
Scotch pine
fluorine compound
needle
environment pollution
Pinus sylvestris
tree
Pseudotsuga menziesii
Picea abies
Douglas fir
fir
Opis:
The objective of the study was to determine differences in the response of trees of three species: Pinus sylvestris, Picea abies and Pseudotsuga taxifolia to environment pollution with fluorine compounds. The amounts of free and complexed fluorine (FA) and total fluorine (FB) were determined in the needles of trees of the three species growing in a polluted area and in an area considered free from pollution. The results of this study showed that Douglas fir is a greater sensitivity to fluorine compounds than Norway spruce and Scots pine, despite its high resistance to fluorine absorption. Estimation of the degree of environment pollution on the basis visible injury and the content of fluorine compounds in needles is discussed. The results were supplemented with observations of lily of the valley (Convallaria maialis) – a plant particularly sensitive to injury by fluorine compounds.
Celem badań było określenie zróżnicowania w reakcji drzew sosny zwyczajnej, świerka pospolitego i daglezji zielonej, na wpływ związków fluoru. Analizowano zawartości fluoru wolnego i związanego kompleksowo (FA) oraz całkowitego (FB) w igłach drzew rosnących w terenie skażonym oraz uznanym za wolny od wpływu zanieczyszczeń. Wyniki tych badań wskazują na większą wrażliwość daglezji niż świerka i sosny mimo, że charakteryzuje się ona znaczną odpornością na pochłanianie fluoru. W pracy dyskutowana jest możliwość wykorzystywania obserwacji widocznych objawów uszkodzeń i pomiarów zawartości fluorków, do oceny stopnia skażenia środowiska przez związki fluoru. W badaniach dodatkowo uwzględniono konwalię – jako roślinę wskaźnikową na ten typ zanieczyszczeń.
Źródło:
Dendrobiology; 2000, 45
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in starch distribution within an embryonic shoot of Norway spruce (Picea abies (L.) Karst.) before resumption of mitotic activity
Autorzy:
Guzicka, M.
Powiązania:
https://bibliotekanauki.pl/articles/41758.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Norway spruce
temperature
embryonic shoot
Feulgen reaction
change
Picea abies
starch distribution
mitotic activity
Opis:
The above results supplemented earlier research on the structure and development of Norway spruce embryonic shoots and focuses on changes in starch distribution in winter and early spring. Starch accumulation and mobilization is characteristic of cells that play an important role in morphogenesis. The observed starch distribution within an embryonic shoot suggests that starch indicates the places of future mitotic and morphogenetic activities of the developing shoot. Changes of the rate of starch accumulation in a bud are affected by temperature. This study showed that especially important are the course of temperature fluctuations.
Źródło:
Dendrobiology; 2001, 46
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accelerated and natural ageing processes change the properties of plasma membrane in Norway spruce (Picea abies (L.) Karst.) seeds during storage
Autorzy:
Nowakowska, J
Rakowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/41613.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
plasma membrane
Norway spruce
natural aging process
Picea abies
vitality
vigor
storage
seed
Opis:
The present study examines the mechanism of natural and accelerated ageing processes in Norway spruce (Picea abies [L.] Karst.) seeds stored at low temperature for one (control) and eight years. The analyses of vitality, electrolyte leakage, protein composition and activity of the proton-pump ATPase (P-ATPase, EC.3.6.1.35) in plasma membrane of Norway spruce seeds have been investigated. Seeds collected in 1999 from northeastern Poland have been treated with accelerated ageing method and compared to the seeds of the same provenance, collected in 1992 (control). The vigor and the vitality of the Norway spruce seeds depend on the age of seeds. After 6 days of experiment both samples of seeds (artificially aged seeds and control) expressed the same percentage of germination and similar electrolyte leakage. Analysis of protein composition in the extracts showed an increased amount of some low molecular-weight proteins in artificially and naturally aged seeds compared to the control. Our results indicate similar level of P-ATPase activity in natural, artificially aged and control seeds. This suggests that natural ageing process can involve changes in plasma membrane protein composition but does not affect the P-ATPase activity.
Źródło:
Dendrobiology; 2002, 47 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Host specialization of IS-group isolates of Heterobasidion annosum to Scots pine, Norway spruce and common fir in field inoculation experiments
Autorzy:
Werner, A
Lakomy, P.
Powiązania:
https://bibliotekanauki.pl/articles/41469.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
sapwood
Norway spruce
Scotch pine
host preference
Heterobasidion annosum
host tree
wounding method
vertical spread
intersterile group
common fir
host
Opis:
Two field inoculation experiments were conducted to study intraspecific variation in vertical spread of the P-, S- andF-IS-group isolates of Heterobasidion annosum in stems of Pinus sylvestris, Picea abies and Abies alba. Host-plants were inoculated with four isolates of each IS group after 10 mm long wounds made with a sterile knife (experiment 1) or 3 mm diameter radial holes made with a drill (experiment 2). On pine, the P-group isolates were more virulent than S andF isolates in terms of infection frequency, mortality rate andvertical spread in sapwood. The S isolates had higher incidence of infection and extensive growth on spruce than on pine. The F isolates were significantly less virulent on pine andspruce than on fir. Vertical spreadof all IS groups on fir was similar. In spite of between-strain-within-IS group variation in vertical spreadon each host, the study provided strong evidence for the occurrence of intraspecific differences in the host preference. In the interspecific analysis with three hosts, the isolates, IS groups andhost × strain andhost × IS group interactions accountedfor most of the explainedvariation, while host-plants accountedfor the smallest portion of the variance.
Źródło:
Dendrobiology; 2002, 47
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Główne zadania hodowli lasu w terenach górskich i zasady ich realizacji
Main objectives of silviculture in the mountain regions and the principles of their implementation
Autorzy:
Jaworski, A.
Powiązania:
https://bibliotekanauki.pl/articles/1026510.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zalesianie
drzewostany bukowe
odnowienia lasu
gospodarka lesna
hodowla lasu
tereny gorskie
przebudowa drzewostanow
lesnictwo
zabiegi pielegnacyjne
drzewostany jodlowe
regeneration
tending
conversion
transformation
afforestation
spruce
beech
fir
Opis:
The specific of widely understood natural conditions of the montane forests and the functions they serve indicate the need of promoting more complex, non−schematic and improved forest management methods than in the lowlands. Depending on the species composition the renewal of forests of the lower mountain zone requires application of regular shelterwood systems – often in a modified form (beech and spruce stands), irregular shelterwood−group system, Swiss irregular shelterwood system, and where possible, selection system (in fir stands). In the spruce stands of the high mountain zone the mountain selection system is recommended. Conversion of pure spruce stands and nurse crops should be a long−term process using the silvicultural procedure based on some of the above−mentioned regeneration methods. Tending of the advance regeneration and thickets depend on stand stability and production aim (spruce), site conditions and site quality (beech), variability of structure and origin of regeneration (fir) should be closely connected with regeneration methods. In the maturing stands the following thinning methods should be applied: in spruce stands – Wiedemann, Abetz, as well as Burschel and Huss thinnings; in fir stands – crown and selection thinnings; in beech stands – selection and group thinnings. The group method of planting (rot system) ensures the most successful forest regeneration at high altitudes in the mountains.
Źródło:
Sylwan; 2003, 147, 02; 3-19
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Induction of somatic embryogenesis in spruce: Picea omorika, P. pungens "Glauca", P. breweriana and P. abies
Autorzy:
Hazubska, T
Szczygiel, K.
Powiązania:
https://bibliotekanauki.pl/articles/41201.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Norway spruce
Picea pungens
Serbian spruce
Picea abies
blue spruce
Picea omorika
clonal propagation
spruce
somatic embryogenesis
maturation
embryogenesis
Picea breweriana
somatic embryo
Opis:
The studies were carried out on seed explants (mature zygotic embryos) of four spruce species: Picea omorika (Pancić) Purk., P. pungens ‘Glauca' Beisnn., P. breweriana S. Watson and P. abies (L.) Karst. The explants required darkness during the induction of embryogenic tissue. Temporary exposure of explants to light did not increase their embryogenic capacity. It was observed that the temperature of 25°C was the optimal for embryogenic tissue induction from mature zygotic embryos of Picea omorika. Cold treatment at 4°C during one week improved embryogenic tissue initiation in the explants of P. pungens ‘Glauca'. Seed explants of Picea omorika produced embryogenic tissue on medium lacking glutamine. Only explants of Picea abies and P. omorika showed embryogenic tissue formation. For effective proliferation of embryogenic tissue in Picea abies and P. omorika it was necessary to supply the medium with 2,4-D (4.5-9 μM) and BA (2.25 μM). Two of three analized lines showed that ABA promote somatic embryo maturation, at the ABA concentration 20 μM in the medium.
Źródło:
Dendrobiology; 2003, 50
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kryteria wieku dojrzałości drzewostanów do odnowienia
The criteria of maturity age of a stand to regenerate
Autorzy:
Głaz, J.
Powiązania:
https://bibliotekanauki.pl/articles/973276.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Pinus
Abies
Picea
buk
Quercus
Fagus
drzewostany
sosna
świerk
jodła
dąb
drzewa leśne
leśnictwo
wiek dojrzałości od odnowienia
stands with natural regeneration
maturity age of a stand to regenerate
pine
spruce
fir
beech
oak
Opis:
Stand characteristics were analysed for the occurrence of regrowth with a species matching the dominant species of a stand. The analysis covered: stand age, stocking, degree of shelter (the sum of stocking plus the percentage of the shrub layer cover), dbh basal area, type and the dominant species of the vegetation cover. The obtained results were considered as preliminary criteria of the maturity age for regeneration.
Źródło:
Sylwan; 2003, 147, 04; 69-70
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Population parameters as an andicator of susceptibility of ornamental coniferous plants to spruce spider mite
Autorzy:
Czajkowska, B.
Kielkiewicz, M.
Puchalska, E.
Powiązania:
https://bibliotekanauki.pl/articles/65565.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cypress
Oligonychus ununguis
conifer
susceptibility
resistance
ornamental plant
spruce
population parameter
spruce spider mite
Źródło:
Journal of Plant Protection Research; 2003, 43, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Świerk pospolity [Picea abies (L.) Karst.] w 30−letnim doświadczeniu proweniencyjnym serii IUFRO 1972 w Nadleśnictwie Doświadczalnym Siemianice
Norway spruce [Picea abies (L.) Karst.] provenance in a thirty−year IUFRO 1972 experiment series in the Forest Experimental Station in Siemianice
Autorzy:
Barzdajn, W.
Powiązania:
https://bibliotekanauki.pl/articles/972824.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
proweniencje
hodowla lasu
Nadlesnictwo Siemianice
Picea abies
lesnictwo
swierk pospolity
drzewa lesne
Norway spruce
Siemienice
provenances
Polska
IUFRO experiment 1972
Opis:
The paper focuses on the analysis of taxation characteristics of 20 Polish provenances of Picea abies (L.) Karst. In 1996, spruce from Istebna Bukowiec was taken as a standard provenance, which generated the highest yield while in 2001 – the provenance from Zwierzyniec Lubelski. This is indicative of an interaction between assessment results and age, as well as of the existence of spruce populations which are more productive than the spruce from Istebna Bukowiec. It is advisable to continue studies concerning identification of spruce genetic resources in Poland.
Źródło:
Sylwan; 2003, 147, 07; 24-30
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ syntetycznych feromonów na zasiedlanie drzew pułapkowych przez rytownika pospolitego Pityogenes chalcographus (L.) (Col.: Scolytidae)
The effect of synthetic pheromones on the infestation of trap logs by Pityogenes chalcographus (L.) (Col.: Scolytidae)
Autorzy:
Grodzki, W.
Powiązania:
https://bibliotekanauki.pl/articles/972998.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zasiedlanie
Pityogenes chalcographus
feromony syntetyczne
drzewa pulapkowe
ochrona lasu
rytownik pospolity
leśnictwo
szkodniki roślin
pityogenes chalcographus
trap logs
pheromones
Norway spruce
Opis:
The classic trap logs are attractive for Pityogenes chalcographus. The infestation density and the length of infested part of stem can be increased by the use of synthetic pheromones of this species. The use of trap logs is generally recommended, but their effectiveness can be enhanced by the use of synthetic pheromones.
Źródło:
Sylwan; 2003, 147, 11; 54-60
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zasięg występowania kornika zrosłozębnego Ips duplicatus C.R. Sahlb. (Col.: Scolytidae) w obszarach górskich południowej Polski
Distribution range of the double spined bark beetle Ips duplicatus C.R. Sahlb. (Col.: Scolytidae) in the mountain areas of southern Poland
Autorzy:
Grodzki, W.
Powiązania:
https://bibliotekanauki.pl/articles/1026588.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zasieg pionowy
wystepowanie
kornik zroslozebny
szkodniki roslin
zasieg wystepowania
drzewostany swierkowe
lasy gorskie
Polska Poludniowa
lesnictwo
Ips duplicatus
ips duplicatus
bark beetle
norway spruce
mountains
pheromones
Opis:
A monitoring network was set up in 2002 in order to define the distribution range of Ips duplicatus in mountain Norway spruce stands in southern Poland. Borregard pipe traps baited with synthetic pheromone Duplodor (Chemipan, Poland) were installed on 70 locations situated above 600 m a.s.l. in Carpathians and Sudeten. The occurrence of I. duplicatus was confirmed in 17 locations in the western part of Carpathians, including those located around 1000 m a.s.l., while no beetles were caught in the eastern Carpathians nor in the Sudeten. The distribution range in Polish mountains is adjacent to those in northern Slovakia and northern Moravia (Czech republic).
Źródło:
Sylwan; 2003, 147, 08; 29-36
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany tendencji wzrostowych głównych lasotwórczych gatunków drzew w Europie i obszarach górskich Polski oraz ich przyczyny. Część I. Zmiany tendencji wzrostowych
Growth trends of the European main forest tree species and potential causes. Part I. Changes in growth trends
Autorzy:
Jaworski, A.
Powiązania:
https://bibliotekanauki.pl/articles/1026478.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
gatunki lasotworcze
Polska
Quercus
lesnictwo
Picea abies
Europa
Pinus sylvestris
wzrost roslin
buk zwyczajny
Abies alba
sosna zwyczajna
dab
jodla
Fagus sylvatica
przyrost drzew
drzewa lesne
swierk pospolity
increment
volume
european beech
scots pine
norway spruce
silver fir
sessile oak
Opis:
The paper provides information concerning the growth of pine, spruce, oak, beech and fir stands based on the research conducted by the European Forest Institute in a number of the European countries and in Poland. Noteworthy i.a. is the increase in volume increment of spruce and pine in some stands in Germany up to 250% of the values given in the yield tables. Since the early fifties of the past century beech and sessile oak in Bavaria have exhibited an increase in the height growth and volume increment. Their values markedly exceed those provided in the tables. Fir, similar to spruce, pine and beech shows the reduction in the increment and dieback in the regions under heavy industrial pollution. However in other regions under the impact of air pollution the response of pure and multispecies stands with the share of fir was positive. In Poland, a rapid decline in the dbh increment in three tree species (fir, spruce, pine) in the seventies was greater than in the sixties. In 1981−1989, fir showed a favourable growth in diameter; this positive tendency was noticed in the whole range of fir distribution in Poland, though the increment did not return to the level before its decline. The pine increment regenerated after 1990. The poorest increment was found in spruce in the eighties following its collapse in the seventies (Żywiecki and Śląski Beskid).
Źródło:
Sylwan; 2003, 147, 06; 99-106
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność izoenzymatyczna niektórych polskich populacji świerka (Picea abies (L.) Karst.) z doświadczenia proweniencyjnego IUFRO - 1972
Isozymatic variability in some of the Polish populations of Norway spruce (Picea abies (L.) Karst.) in the IUFRO - 1972 provenance trial
Autorzy:
Prus-Głowacki, W.
Modrzyński, J.
Powiązania:
https://bibliotekanauki.pl/articles/1026385.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
hodowla lasu
izoenzymy
Picea abies
lesnictwo
IUFRO
struktura genetyczna
doswiadczenia proweniencyjne
zmiennosc
swierk pospolity
drzewa lesne
norway spruce
polish populations
isozymes
genetic differentiation
provenance trial iufro−1972
Opis:
Genetic differentiation of nine Polish Norway spruce populations, expressed by their isozymatic polymorphism, is presented. The results suggest a presence of two gene pools, one in north−eastern, another in southern Poland.
Źródło:
Sylwan; 2003, 147, 03; 3-10
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Autovegetative reproduction in conservation and selective cultivation of Norway spruce Picea abies (L.) Karst of Istebna race
Autorzy:
Rylski, K
Powiązania:
https://bibliotekanauki.pl/articles/41485.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
autovegetative reproduction
plant reproduction
conservation
selective cultivation
Norway spruce
Picea abies
forest tree
rooting experiment
cutting
progeny
Opis:
The paper discusses the results of rooting experiments conducted with the cuttings obtained from 8-year-old spruce trees of Istebna race. The studies investigated the effects of endogenous factors, such as the place of extraction, length and origin of cuttings, and an exogenous factor, which is a rooting stimulus.
Źródło:
Dendrobiology; 2004, 51 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biometric characterisation of selected seed stands of Picea abies (L.) Karst. of Istebna
Autorzy:
Orzel, S
Forgiel, M.
Powiązania:
https://bibliotekanauki.pl/articles/41646.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Norway spruce
Picea abies
seed stand
site condition
growing
tree
biometric characteristics
statistics
spruce tree
crown length
mountain vegetation
Opis:
The paper assesses the growth of nine seed stands of Picea abies (L.) Karst. of Istebna. The stands were selected on the basis of the dynamic height growth and good adaptation of their progeny under different site conditions. The d.b.h. increment of trees during the entire lifespan of stands is analysed in detail, especially its magnitude and dynamics during the last twenty years, i.e. from 1982 to 2001.
Źródło:
Dendrobiology; 2004, 51 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł

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