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Tytuł:
Empiryczna ocena dokładności zwykłych wzorów dendrometrycznych dla strzał bez kory modrzewia europejskiego Larix decidua Mill.
Empirical evaluation of the accuracy of dendrometric formulas for European larch Larix decidua Mill. stems without bark
Autorzy:
Hawranik, L.
Tomusiak, R.
Powiązania:
https://bibliotekanauki.pl/articles/2136065.pdf
Data publikacji:
2021
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
dendrometria
modrzew europejski
Larix decidua
miazszosc strzaly bez kory
bledy procentowe wtorne
wzor srodkowego przekroju
wzor Smaliana
wzor Gieruszynskiego
wzor Hossfelda
wzor francuski
wzor Rieckiego-Newtona
wzor dwupolowkowy
wzor kupiecki
volume
secondary percentage errors
Huber’s formula
Smalian’s formula
Gieruszyński’s formula
Hossfeld’s
formula
French formula
Rieckie-Newton’s formula
two-halfs formula
merchant’s formula
Opis:
To determine the volume of felled trees, dendrometric formulas are used that are the product of a specific cross-section and the length of a dendrometric solid. In order to apply these formulas on a larger scale, it is essential to know their accuracy. Most of the research on the accuracy of dendrometric formulas has been carried out using Scots pine with other tree species, including European larch Larix decidua Mill., often being overlooked. The aim of this study was to assess the accuracy of eight common dendrometric formulas for stems of European larch without bark. The research material consisted of 290 larch stems from two forest districts (Pińczów and Prudnik), representing trees from age classes II to V and older. The following formulas were observed to be highly accurate: Huber’s, French, Hossfeld’s, Gieruszynski’s and the two-halfs formula. Huber’s formula provided the mean value of percentage errors closest to zero (0.8%) and was the most accurate for- mula, whereas the two-halfs formula, showed the lowest variability of percentage errors (standard deviation 3.1%). However, all formulas tended to generate systematic errors with the merchant’s and two-halfs formulas underestimating the volume, while the others overestimated the volume. Most of the formulas ́ accuracy was uniform across the different age classes with the exception of the Smalian’s and Rieckie- -Newton’s formulas, that were significantly less accurate when applied to the V and older age classes, and the merchant’s formu- la, characterized by greater accuracy in the V and older age classes. Pair-wise comparisons of the formulas ́ accuracy revealed significant differences between most of the analyzed pairs of formulas though no differences were found between the French and Gieruszynski, French and Hossfeld, Gieruszynski and Hossfeld, Gieruszynski and Huber formulas as well as between the Hossfeld and Huber formulas.
Źródło:
Leśne Prace Badawcze; 2021, 82, 3; 101-110
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The medicinal wood-decay species Laricifomes officinalis in the Alpe Veglia–Alpe Devero Natural Park (Italian Alps): spatial analysis and growth tests of pure cultures
Autorzy:
Girometta, Carolina Elena
Rovelli, Laura
Bracco, Francesco
Brescia, Francesca
Baiguera, Rebecca Michela
Chiatante, Gianpasquale
Picco, Anna Maria
Savino, Elena
Powiązania:
https://bibliotekanauki.pl/articles/11543426.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
wood decay fungi
Laricifomes officinalis
Larix decidua
biodiversity conservation
larch
spatial analysis
growth test
pure culture
natural park
Alps Mountains
Italy
Opis:
Laricifomes officinalis is a wood-decay fungus that is closely associated with old individuals of Larix decidua. In the twentieth century, L. officinalis was over-harvested because of its medicinal properties; consequently, it has become very rare or almost extinct in the Alps. In this study, we investigated the population of L. officinalis in the Alpe Veglia–Alpe Devero Natural Park (Val d’Ossola, Italy) to assess a preliminary conservation strategy. Population consistency was estimated using field mapping, and spatial analysis was performed on host trees based on topographical and environmental variables. Mycelia were isolated from harvested basidiomata, and strain identity confirmed by molecular analysis of the ITS region. All isolated strains were tested for growth in Petri dishes containing different standard media to determine which strains had the highest growth rates; the fastest growing strains may be selected for future studies and applications. Compared to the control strains from Val Malenco and Parco Nazionale del Gran Paradiso, all strains from Alpe Veglia–Alpe Devero Natural Park had lower growth rates. There was no significant difference between the growth rates of strains from Alpe Veglia and those from Alpe Devero. The results suggest that the population consistency of L. officinalis in the Alpe Veglia–Alpe Devero Natural Park is related to two main factors: habitat preservation and harvesting prohibition. These results confirm the need to protect L. officinalis both inside and outside natural reserves, despite the apparent increase in local populations.
Źródło:
Acta Mycologica; 2021, 56, 1; 569
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of rootstock and grafting method on the grafts success and growth of Cedrus deodara (Roxb. ex Lamb.) ‘Karl Fuchs’ plants
Autorzy:
Świerczyński, S.
Kolasiński, M.
Urbaniak, M.
Stachowiak, A.
Rybus-Zając, M.
Powiązania:
https://bibliotekanauki.pl/articles/12309651.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
deodar cedar
Cedrus deodara
Karl Fuchs cultivar
plant cultivar
Larix decidua
Pinus armandii
rootstock
rootstock influence
grafting
grafting method
graft survival
plant propagation
sprout
bud
carotenoid content
chlorophyll content
chloroplast pigment content
Opis:
Experimental studies were conducted in 2015–2017 in the Department of Dendrology, Pomology and Nursery of Poznan University of Life Sciences. The aim of the research was to study the usefulness of three rootstocks: Larix decidua, Pinus armandii, Cedrus deodara and two grafting methods: side grafting and split grafting for propagation purposes of Cedrus deodara ‘Karl Fuchs’. In addition, it was evaluated how the rootstock and the age of cultivar shoots influenced the level of chloroplast pigments in the needles. A higher percentage of grafts success was obtained on Pinus armandii and Cedrus deodara using the side grafting method. Grafted scions of ‘Karl Fuchs’ produced the greatest number of lateral buds and the longest lateral increments of growth on Cedrus deodara root stock. Side grafting significantly improved the percentage of plants that restarted their growth in the second year of cultivation. The largest number of buds on two-year-old shoots were counted on plants grafted on Cedrus deodara using split grafting method. The rootstocks used in this experiment had a slight effect on the content of chloroplast pigments in the needles. Plants grafted on Pinus armandii had the highest level of chlorophyll B, and those grafted on Larix decidua – chlorophyll A/B ratio. The content of chloroplast pigments in the needles depended on the age of shoots. The highest level of chlorophyll A, chlorophyll B and carotenoids was observed when needles were collected from the last year’s growth.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 5; 63-72
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ gatunków drzew na zawartość makropierwiastków i właściwości gleb inicjalnych w warunkach zrekultywowanego wyrobiska popiaskowego
Impact of tree species on macroelements content and properties of the initial soils in condition of reclaimed sand pit
Autorzy:
Woś, B.
Pietrzykowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/985708.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
tereny pogornicze
wyrobiska popiaskowe
rekultywacja terenow
rekultywacja lesna
drzewostany lite
sosna zwyczajna
Pinus sylvestris
modrzew europejski
Larix decidua
brzoza brodawkowata
Betula pendula
olsza czarna
Alnus glutinosa
oddzialywanie na glebe
gleby piaszczyste
odczyn gleby
wlasciwosci chemiczne
zawartosc makroelementow
afforestation
reclamation
species composition
post−mining soils
Opis:
The paper presents the assessment of growth parameters and the impact of pure stands of Scots pine, European larch, common birch and black alder on the reaction and chemical properties of the initial soils developed on the reclaimed sand pit ‘Szczakowa’ (southern Poland). Pine, larch and birch stands were characterized by good growth parameters, which confirms high adaptability of these species to post−mining sites. The black alder was characterized by worse growth parameters. The organic horizon (Olf) under conifers (pine and larch) were characterized by higher mass and lower pH than under deciduous species (birch and larch). The alder litter contained more N, K and Mg compared to other tree species. In the Ain initial horizon, the modifying effect of tree species was only detected in the case of black alder by higher exchange acidity and cation exchange capacity (CEC), higher content of soil organic carbon (SOC) and total N, and a lower C:N ratio, compared to soils under influence of other species. The research confirms that the selection of species composition for afforestation is an important factor affecting the soil−forming processes on reclaimed sand pit. In particular, the alder was characterized by beneficial effects on soil properties, which confirms its usefulness as a phytomeliorative species.
Źródło:
Sylwan; 2019, 163, 05; 407-414
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic identification of alien larch taxa – the case of the Tatra National Park
Autorzy:
Kempf, M.
Hebda, A.
Zieba, A.
Zwijacz-Kozica, T.
Powiązania:
https://bibliotekanauki.pl/articles/2078296.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
taxonomic identification
Larix decidua
Larix kaempferi
Larix × eurolepis
alien species
conser-
vation genetics
Opis:
The natural consequences of introducing alien species can be significant. This is particularly a concern where the taxa have an invasive nature of spreading or in those that freely crossbreed with native species. The hybridization process may lead to impoverishment or even loss of the native gene pool. This is especially dangerous in unique areas that stand out due to their special natural characteristics, such as the Tatra National Park. The determination of the scale of occurrence of alien larch species in the national park and the evaluation of the genetic diversity of the native population is crucial for the conservation of genetic resources and strictly adheres to the latest conservation genetics trends. We evaluated the possibility of effective use of molecular markers for taxonomic identification of the native European larch (Larix decidua Mill.), as well as the alien Japanese larch (Larix kaempferi [Lambert] Carriere) and the hybrid form (Larix × eurolepis Henry). Microsatellite markers were used to analyse the genetic di- versity of individuals identified as European larch from natural refuges and artificial plantings. Of the 148 trees analysed, 105 were identified as the European larch, 38 as Japanese larch, and five as hy- brids. The analysis of the molecular variability of two European larch groups of indigenous and artificial origin showed comparable level of diversity. This study confirmed the effectiveness of the use of selected molecular markers in identification of larch species, which is difficult based on morphological traits. The results indicate the possibility for the effective use of genetic tools in the creation of protection programmes, especially for naturally valuable sites, based on genetic taxonomic identification and richness verification of protected gene pools.
Źródło:
Dendrobiology; 2018, 80; 112-122
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Określenie intensywności przemian biochemicznych gleb w zależności od składu gatunkowego drzewostanu
Denoting the intensity of soil biochemical transition according to stand species composition
Autorzy:
Olszowska, G.
Powiązania:
https://bibliotekanauki.pl/articles/45943.pdf
Data publikacji:
2018
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
gleby lesne
zasobnosc gleb
aktywnosc enzymatyczna
przemiany biochemiczne
wlasciwosci fizykochemiczne
drzewostany
sklad gatunkowy
sosna zwyczajna
Pinus sylvestris
swierk pospolity
Picea abies
jodla pospolita
Abies alba
modrzew europejski
Larix decidua
dab szypulkowy
Quercus robur
buk zwyczajny
Fagus sylvatica
drzewostany mieszane
drzewostany jodlowo-sosnowe
drzewostany sosnowo-bukowe
drzewostany jodlowo-bukowe
Źródło:
Leśne Prace Badawcze; 2018, 79, 4
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie wydajności metod izolacji DNA z igieł i drewna modrzewia europejskiego (Larix decidua Mill.)
Comparison of the DNA extraction methods efficiency from needles and wood of European larch (Larix decidua Mill.)
Autorzy:
Kowalczyk, K.
Jaruga, A.
Zapalska, M.
Powiązania:
https://bibliotekanauki.pl/articles/13109660.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
modrzew europejski
Larix decidua
metoda izolacji
DNA
geny
genetyka
igly modrzewiowe
Źródło:
Agronomy Science; 2018, 73, 2; 37-47
2544-4476
2544-798X
Pojawia się w:
Agronomy Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Struktura drewna konstrukcyjnego
Structural timber characteristics
Autorzy:
Wdowiak, A.
Powiązania:
https://bibliotekanauki.pl/articles/105498.pdf
Data publikacji:
2017
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
drewno
struktura mikroskopowa
struktura makroskopowa
przyrosty roczne
biel
twardziel
pęcherze
wycieki żywiczne
promienie łykodrzewne
sosna zwyczajna
Pinus sylvestris L.
świerk pospolity
Picea abies Karst.
modrzew europejski
Larix decidua Mill.
jodła pospolita
Abies alba Mill.
daglezja zielona
Pseudotsuga menziesii Franco
wood
microscopic structure
macroscopic structure
annual rings
sapwood and heartwood
resin pockets and leaks
medullary rays
pine
spruce
European larch
silver fir
Douglas fir
Opis:
Drewno to priorytetowy surowiec dla przemysłu celulozowego i energetycznego. Źródłem surowcowym są lasy. Powierzchnia lasów w Polsce, z roku na rok, nieustannie wzrasta. Wzrost lesistości od roku 1945 wynosi 8,4%. Przyrost ten jest wynikiem zalesiania gruntów użytkowanych przez rolnictwo i nieużytków [1]. W monografii przedstawiono budowę mikroskopową i makroskopową drewna sosny zwyczajnej Pinus sylvestris L., pochodzącej z czterech wybranych krain przyrodniczoleśnych Polski: Kraina A - Mazowiecko – Podlaska Kraina Przyrodniczo – Leśna (Nadleśnictwo Garwolin), Kraina B - Małopolska Kraina Przyrodniczo – Leśna (Nadleśnictwo Przedbórz), Kraina C - Śląska Kraina Przyrodniczo – Leśna (Nadleśnictwo Kędzierzyn Koźle), Kraina D - Karpacka Kraina Przyrodniczo – Leśna (Nadleśnictwo Piwniczna). Ukazano strukturę mikroskopową jodły pospolitej Abies alba Mill, modrzewia europejskiego Larix decidua Mill. pochodzącego z zabytkowego obiektu wybudowanego w 1860 r., sosny zwyczajnej Pinus sylvestris L. poddanej 5 - letnim wpływom atmosferycznym oraz degradacji biologicznej. Określono przyrosty roczne, biel i twardziel, pęcherze i wycieki żywiczne oraz promienie łykodrzewne. Zaprezentowano właściwości rozpoznawcze wybranych rodzajów drewna iglastego, w szczególności zabarwienie twardzieli, szerokość przyrostów rocznych, udział bielu i twardzieli, obecność przewodów żywicznych, przejście z drewna wczesnego do późnego czy strukturę sęka. Dodatkowo scharakteryzowano takie gatunki drzew, jak sosna zwyczajna Pinus sylvestris L., świerk pospolity Picea abies Karst., modrzew europejski Larix decidua Mill., jodła pospolita Abies alba Mill., daglezja zielona Pseudotsuga menziesii Franco [1-2].
Wood is a basic raw material for paper and pulp industry, and also in power generation. Wood supplies are provided by forests. In Poland, the area of forests continues to increase annually. Since 1945, forest cover has grown by 8.4%. The increment results from afforestation of the land with former agricultural use, and of uncultivated land [1]. In the monograph, the micro- and macroscopic structure of wood from pine Pinus sylvestris L. was presented. The wood originated from four selected nature-forest areas of Poland, namely Area A - Mazowiecko – Podlaska Nature-Forest Area (Garwolin Forest Inspectorate), Area B - Małopolska Nature-Forest Area (Przedbórz Forest Inspectorate), Area C - Śląska Nature-Forest Area (Kędzierzyn Koźle Forest Inspectorate), Area D - Karpacka Nature-Forest Area (Piwniczna Forest Inspectorate). Wood microscopic structure analysis was performed for the following conifer species: silver fir Abies alba Mill, European larch Larix decidua Mill., the wood of which was obtained from a historical structure built in 1860, and pine Pinus sylvestris L., the wood of which was exposed to atmospheric conditions and biological degradation for a 5 – year period. The following features were specified: annual rings, sapwood and heartwood, resin pockets and leaks, and also medullary rays. The distinctive properties of selected coniferous wood species were presented, including heartwood colour, the width of annual rings, sapwood and heartwood content, the occurrence of resin ducts, transition from earlywood to latewood, and also knot structure. Additionally, the characteristics of the wood of the following species were provided: pine Pinus sylvestris L., spruce Picea abies Karst., European larch Larix decidua Mill., silver fir Abies alba Mill., Douglas fir Pseudotsuga menziesii Franco [1-2].
Źródło:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2017, 64, 4/I; 363-378
2300-5130
2300-8903
Pojawia się w:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wybór elitarnych drzew matecznych sosny zwyczajnej i modrzewia europejskiego do założenia plantacji nasiennych 1,5 generacji
Selection of elite plus trees of Scots pine and European larch for the establishment of 1.5 generation seed orchards
Autorzy:
Lewandowski, A.
Kowalczyk, J.
Litkowiec, M.
Urbaniak, L.
Rzońca, M.
Powiązania:
https://bibliotekanauki.pl/articles/988981.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
plantacje nasienne
zakladanie plantacji
wybor drzew matecznych
drzewa elitarne
sosna zwyczajna
Pinus sylvestris
modrzew europejski
Larix decidua
seed orchards
genetic gain
forest tree breeding
Opis:
Forest tree breeding is principally concerned with the improvement of growth, wood quality and vitality of tree species of economic interest. In Poland, breeding programs started in the second half of the twentieth century with the choice of plus trees to establish seed orchards. At present, seed orchards are a predominant source for the production of genetically improved seeds of conifers. In our country, Scots pine is the main forest tree, occupying almost 80% of the forest area. Annually, about 30,000 hectares of pines are artificially planted, with only a few percent of seeds coming from seed orchards. European larch is an important admixture tree species of economic significance in some areas, such as the Świętokrzyskie Mountains. Unlike Scots pine, as much as 60% of larch seeds used for artificial regeneration comes from seed orchards. There are 179 seed orchards in Poland, occupying area of 1140 ha, including 48 Scots pine and 30 European larch ones of 384 ha and 207 ha, respectively. All of them are only first generation and were established with vegetative propagules of plus trees selected in wild stands for their outstanding phenotype. Based on the results from the evaluation of plus trees in progeny trials, we selected 40 Scots pine and 40 European larch elite trees to establish 1.5−generation seed orchards. The selected trees were also characterized for their level of genetic variation with the use of nuclear microsatellite loci. We found that the examined trees have a high level of genetic variation. The mean number of alleles per locus and expected heterozygosity were 12.4 and 11.9, and 0.752 and 0.806, for Scots pine and European larch respectively. The calculated parameters are comparable to that observed in the populations of these species in Poland and other European countries. Established genetic profiles will be used in the future for controlling and monitoring the identity of elite trees in the process of creating archives of clones and seed plantations of next generation.
Źródło:
Sylwan; 2017, 161, 11; 917-926
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność budowy szyszek i powierzchni łusek nasiennych modrzewia europejskiego (Larix decidua Mill.)
Variability of cones and scale surface area of European larch (Larix decidua Mill.)
Autorzy:
Aniszewska, M.
Stadnik, S.
Gendek, A.
Powiązania:
https://bibliotekanauki.pl/articles/46195.pdf
Data publikacji:
2017
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
drzewa lesne
modrzew europejski
Larix decidua
szyszki
budowa morfologiczna
luski nasienne
zmiennosc
Opis:
The article describes the shape of cones of European larch (Larix decidua Mill.) using the fourth-degree polynomial fitting function. The material was derived from the seed orchard of the Barycz Forest District. The curves were used to calculate the area and volume of single cones. It was not possible to generalize the formulas to calculate the surface and volume of larch cones using the described method, due to the large variability of the empirical coefficients of equations. Finally, to calculate the area and volume of cones, the formula to determine the solid figure of cone was used. The constant αs of 0.43 was introduced to the formula. Calculated volume values were compared to actual volumes measured by a water-filled burette. The mean surface area of larch cones was calculated from the forming function and it was 780 mm2 and the volume was 2434 mm3.Values calculated from cone formulas after taking into account the αs and constants (0.68 and 0.53) were 783 mm2 and 2415 mm3, respectively. The outer and inner surfaces of the seed scales coming from the central part of the larch cones were photographed using Quanta 200 scanning microscope. Specific features of the scales were measured using the Multi Scan Base program. It was found that the outer and inner surfaces of the larch scales, such as pine and fir, were different. On the outer side, scales are formed by thick-walled cells with visible protruding trichomes. And on the inside at the location of the wings and seeds are visible thin-walled cells with jagged cell walls. On the surface of the scales, the appearance of long stem cells, resembling threads, that are absent on pine and fir seed scales was observed.
Źródło:
Leśne Prace Badawcze; 2017, 78, 3
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adaptacja wybranych pochodzeń modrzewia europejskiego do klimatu nizin centralnej Polski
Adaptation of the selected provenances of European larch to climate of lowlands in central Poland
Autorzy:
Wilczyński, S.
Szymański, N.
Olejnik, M.
Powiązania:
https://bibliotekanauki.pl/articles/989610.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
modrzew europejski
Larix decidua
proweniencje
wzrost roslin
przyrost drzew
czynniki klimatyczne
doswiadczenia proweniencyjne
Polska Centralna
larix decidua
climate
radial increment
provenance trial
Opis:
The study evaluated the sensitivity of European larch (Larix decidua) of two provenances to thermo−pluvial conditions on the provenance plot located in Sękocin Stary (52°05‵ N, 20°51‵ E, 125 m a.s.l.). The studied larches originated from Pelplin (lowland, northern Poland, 50 m a.s.l.) and Szczytna (upland, southern Poland, 525 m a.s.l.). The trees of both provenances differed in terms of their quantitative and qualitative breeding characteristics. The trees originated from different climatic regions whose climate was also different from the climate of the provenance plot. Values of the size of the radial increments measured at cores extracted from the trees were the measure of their sensitivity to the climatic factor. The cluster and principal component analyses were used to classify the trees according to their features of the short−term rhythm of the radial increments. The response function and pointer years analyses were used to evaluate climate−growth relationships. The results of the study show the trees of both provenances have similar sensitivity to the thermo−pluvial conditions in the previous September, the temperature in March and the precipitation in May of the year of tree−ring formation. The larches of Pelplin provenance, in contrast to the trees of Szczytna provenance, were sensitive to the low temperature in February and the low precipitation in the growing season. These features could be one of the causes of the lower incremental abilities of the trees of Pelplin provenance. The larches of Szczytna provenance had higher frost tolerance in February and drought tolerance in summer.
Źródło:
Sylwan; 2016, 160, 08; 656-665
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sygnał dendroklimatyczny w sekwencjach przyrostów rocznych modrzewia rosnącego we wschodniej części polskich Karpat
Dendroclimatic signal in tree-ring sequences of larches from eastern part of the Carpathians in Poland
Autorzy:
Danek, M.
Chuchro, M.
Powiązania:
https://bibliotekanauki.pl/articles/881257.pdf
Data publikacji:
2016
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
dendroklimatologia
drzewa
przyrost drzew
przyrosty roczne
modrzew europejski
Larix decidua
Karpaty
RDLP Krosno
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:
Aberrant phyllotactic patterns in cones of some conifers: a quantitative study
Autorzy:
Fierz, V.
Powiązania:
https://bibliotekanauki.pl/articles/56470.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
phyllotactic diversity
phyllotaxis
Pinus nigra
Larix decidua
cone
conifer
quantitative study
Opis:
The scale patterns of 6000 cones from one single tree of Pinus nigra Arn. have been examined. Apart from the main Fibonacci pattern with 8 and 13 parastichies, nine aberrant spiral patterns with Fibonacci-type sequences have been found. They are quite rare and occur with different frequencies. The parastichy quotient 8/13 of the prevalent pattern is very close to the golden ratio 0.618. In case of the black pine it appeared that the greater the deviation of the parastichy quotient m/n from 0.618, the rarer the pattern. Similar results obtained for the sample of 1506 cones collected from three individual trees of larch (Larix decidua Mill.) suggest a true correlation between the frequency of a pattern and the deviation of its parastichy quotient from the golden ratio.
Źródło:
Acta Societatis Botanicorum Poloniae; 2015, 84, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grzyby zasiedlające nasiona wybranych gatunków drzew leśnych
Fungi inhabiting seeds of selected forest tree species
Autorzy:
Król, E.D.
Machowicz-Stefaniak, Z.
Zimowska, B.
Abramczyk, B.A.
Zalewska, E.D.
Powiązania:
https://bibliotekanauki.pl/articles/973515.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
brzoza brodawkowata
Betula pendula
buk zwyczajny
Fagus sylvatica
Quercus robur
Quercus rubra
klon jawor
Acer pseudoplatanus
olsza czarna
Alnus glutinosa
Abies alba
modrzew europejski
Larix decidua
sosna zwyczajna
Pinus sylvestris
swierk pospolity
Picea abies
nasiona
wykaz gatunkow
leśnictwo
drzewa leśne
dąb szypułkowy
jodła pospolita
dąb czerwony
grzyby zasiedlające nasiona
pathogens
mycological analysis
coniferous trees
deciduous trees
fungal communities
Opis:
The seeds of forest trees usually transfer numerous fungi species, including pathogens, facultative parasites and saprotrophs. The aim of the present work was to determine qualitative and quantitative composition of fungi inhabiting the seeds of 10 trees species i.e.: birch (Betula pendula Roth.), beech (Fagus sylvatica L.), red oak (Quercus rubra L.), common oak (Quercus robur L.), sycamore maple (Acer pseudoplatanus L.), black alder (Alnus glutinosa Gaerth.), fir (Abies alba Mill.), European larch (Larix decidua Mill.), pine (Pinus sylvestris L.) and spruce (Picea abies (L.) H. Karst). The seed samples were obtained courtesy of 5 forest districts located in the south−eastern Poland. Mycological analysis was performed in the years 2012−2013. Each time, the study included 100 surface−disinfected seeds of particular plant species. As a result of the study about 2000 colonies of fungi representing 26 genera and above 39 species were isolated. The most frequently occurring species were: Fusarium spp., Penicillium spp., Alternaria alternata, Cladosporium cladosporioides, Trichoderma koningii, Epicoccum nigrum, Phoma spp. and Cylindrocarpon destructans. Moreover Discula spp., Phyllosticta spp., Pyrenochaeta spp., Rhizoctonia solani, Alternaria consortiale were obtained only from the seeds of deciduous trees while Truncatella angustata and Sphareopsis sapinea exclusively from the seeds of coniferous trees. The genus Fusarium was represented by 8 species and among them F. avenaceum, F. oxysporum and F. sporotrichioides dominated. Moreover Penicillium spp., Epicoccum nigrum, Trichoderma koningii, Botrytis cinerea, Cladosporium cladosporioides, Chaetomium globosum and Trichothecium roseum were commonly isolated while the other species of fungi were present in smaller numbers. Isolation of numerous fungi species which may cause mold of sowing material, seedling blight as well as leaves and needles spot, indicates their big threat for seeds during storage and for plants in the initial period of growth in a nursery. The obtained results show that the seeds, besides the infected soil, are a very important source of infection for young plants.
Źródło:
Sylwan; 2015, 159, 02; 135-141
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza budowy skrzydełek modrzewia europejskiego (Larix decidua Mill.) w aspekcie procesu odskrzydlania
The analysis of the conformacion of the wings of Larix decidua Mill. in terms of dewinging
Autorzy:
Aniszewska, M.
Powiązania:
https://bibliotekanauki.pl/articles/880872.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
drzewa lesne
modrzew europejski
Larix decidua
nasiona
skrzydelka
budowa morfologiczna
odskrzydlanie nasion
odskrzydlanie na mokro
odskrzydlanie na sucho
uszkodzenia nasion
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2014, 16, 2B[39]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 72

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