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Tytuł:
Growth of Scots pine (Pinus sylvestris L.) on forest and former agricultural lands in Krynki Forest District
Autorzy:
Zakrzewski, J.
Leosz, K.
Jedrzejuk, A.
Powiązania:
https://bibliotekanauki.pl/articles/38651.pdf
Data publikacji:
2013
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
plant growth
height growth
radial growth
Scotch pine
Pinus sylvestris
needle parameter
forest
agricultural land
Krynki Forest District
Opis:
The paper shows differences in morphological and anatomical features of the Scots pine (Pinus sylvestris L.) growing on former agricultural and forest lands. It was found that at the same age and in the same climatic conditions Scots pines from former agricultural land had larger stem dimensions and needle sizes as compared with the trees growing on forest land. These results lead to an interesting conclusion connected with future afforestation and reforestiation in the Krynki Forest District.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2013, 55, 2
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie zmienności cech taksacyjnych drzewostanów sosnowych pomiędzy obszarami różniącymi się poziomem zanieczyszczeń przemysłowych na Niżu Polskim
Comparision of the variability of pine stand appraisal properties in areas with different levels of industrial pollution in the Polish Lowlands
Autorzy:
Węgiel, A.
Powiązania:
https://bibliotekanauki.pl/articles/1015988.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewostany sosnowe
zanieczyszczenia przemyslowe
cechy taksacyjne
klasy wieku
wysokosc przecietna
przyrost miazszosci
lesnictwo
Niz Polski
zanieczyszczenia powietrza
piersnice drzew
zasobnosc drzewostanu
zmiennosc
pinus sylvestris
coniferous forests
industrial pollution
tree height
dbh
stand volume growth
standing
volume
polish lowlands
Opis:
The paper contains the results of the analyses of four properties (average tree height, average dbh, standing volume, average stand volume growth) of pine stands growing on poor sites in the territory of the Polish Lowlands. The comparison of four relative values of the analysed properties among four 20−year age classes was performed. The obtained results were referred to the level of industrial pollution.
Źródło:
Sylwan; 2007, 151, 04; 26-35
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of growth traits and qualitative indices for selection of Scots pine (Pinus sylvestris L.) elite trees. A case study from Volyn region, western Ukraine
Autorzy:
Voitiuk, Vasyl
Andreieva, Valentyna
Kychyliuk, Oleksandr
Hetmanchuk, Anatolii
Klisz, Marcin
Mohytych, Vasyl
Powiązania:
https://bibliotekanauki.pl/articles/2041521.pdf
Data publikacji:
2020
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
tree breeding
half-sib families
progeny tests
DBH
height growth
Opis:
Since the plus trees are selected based on phenotype, it is necessary to evaluate them in progeny test. The aim of this study is an indication of selecting elite mother trees based on the results from half-sib progeny test trials. As study sites, two Scots pine half-sib progeny tests were selected. During evaluation, the progenies had reached the age of 38 and 40 years, respectively. In both progeny trials, quantitative parameters and qualitative traits of Scots pine half-sib progenies were investigated. Based on these data, complex evaluation of half-sib families was carried out. We concluded that, Scots pine progenies at the age of 38 and 40 years in fresh and moist mixed forests are characterised by acceptable quality, with the survival being 25%–33% per progeny test trial. Based on a complex evaluation of 38- and 40-year-old half-sib progenies of plus trees, we proposed to select 31% of tested plus/mother trees as candidates for elite trees. Further, the list of candidates for elite trees was created with five plus trees from the Volyn region (26% of the total tested from the region) and four plus trees from the Lviv region (40% of the total tested from the region). With age, the share of the best and undesirable trees decreases, while the proportion of intermediate trees increases in both control trees and half-sib progenies. At the age of 38 and 40 years, the proportion of fast-growing offspring was from 0% to 36%, while the declining trend that was observed in previous years was being continued. Thus, due to the declining trend in the proportion of fast-growing offspring observed at the age of 38 and 40 years, we propose to select candidate trees for an elite group not early than after 40 years of test their progenies.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2020, 62, 3; 199-209
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wound healing rate in oriental beech trees following logging damage
Autorzy:
Tavancar, F.
Picchio, R.
Lo Monaco, A.
Nikooy, M.
Venanzi, R.
Bonyad, A.E.
Powiązania:
https://bibliotekanauki.pl/articles/962357.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
Tematy:
fagus orientalis
uneven-aged stand
single-tree selection
diameter
growth
height growth
tree biosocial class
Opis:
Beech is the most important commercial species in the Caspian forests of Iran. Selective cutting and harvesting methods may adversely impact the quality of the residual trees, as the injuries make the trees prone to future disease, insect infestations or timber defects. Although attempts to better understand how wounds affect the residual trees have been made in many different contexts, there are still few investigations on uneven-aged forests. In this study the key objectives were to determine and model the healing rate for different wound parameters (width, length, and area of wound); to analyse the relationship between wound healing rate (WHR), tree diameter growth and tree height growth; to analyse the WHR in relation to wound position on the stem; and to analyse the relationship between WHR, width and area of wound in DBH classes and social classes, with the aim of enabling the prognosis of logging wounds. Wounded beech trees were examined immediately after selective logging and after a 5-year period. The WHR was 31.2 ±7.7 cm2 year-1. The wound width healing rate (18.4 ±3.4 mm·year-1) was significantly higher than the wound length healing rate (4.5 ±1.6 mm·year-1). Only 12% of wounds were completely closed after a 5-year period, and 15 years are necessary for the complete closure of 80% of total wounds. The ratio of wound area to stem area at wound height (RWS) showed a more pronounced effect on diameter than on height. Regression analysis showed that WHR was correlated negatively with wound area and width and positively with tree diameter growth, but no significant relationship was found between height growth and WHR parameters. The WHR was significantly higher at an upper position than at a lower one, and statistical tests showed that the tree vertical layering classes had a significant effect on WHR. Finally, it was shown that WHRs in upper-storey trees are significantly higher than in the middle and lower storeys.
Źródło:
Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2019, 62, 203
1644-3985
Pojawia się w:
Drewno. Prace Naukowe. Doniesienia. Komunikaty
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic site index model and trends in changes of site productivity for Alnus glutinosa (L.) Gaertn. in southern Poland
Autorzy:
Socha, Jarosław
Ochał, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/956987.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
height growth model
height-age relationship
forest site
evaluating site productivity
alder
Opis:
Black alder is naturally widespread across all of Europe and has an increasing importance for forest ecosystems. Thanks to the considerable tolerance to adverse climatic and edaphic environmental conditions black alder is important both in open landscapes and can also be involved in the rehabilitation of disturbed soils. Assessment of site productivity is essential for providing a frame of reference for silvicultural diagnosis and prescription in order to ensure the sustainability of existing and newly established ecosystems. The most accepted method of evaluating site productivity is the site index (SI). The aim of the presented research was to develop the SI model for black alder in southern Poland. The developed SI model was used as a tool in order to test the research hypothesis assuming the increase in site productivity for black alder in southern Poland. The research material for development of SI model were stem analysis data from 180 research plots. Both, the local model parameter, which was estimated individually for every tree, and the other parameters estimated globally for the whole data set were estimated simultaneously. Changes in site productivity were analyzed on research plots and a set of 12,974 stands from the forest inventory database. Site indices calculated using the developed model are negatively correlated with age/ positively correlated with establishment year of the stands. This confirms the existence of the phenomenon of increasing site productivity for black alder. During the last century site productivity measured with site index increased on average 5 m. Therefore, black alder that belongs to the fast-growing tree species should be considered of the increasing importance for forest management.
Źródło:
Dendrobiology; 2017, 77; 45-57
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamiczne krzywe bonitacyjne dla drzewostanów sosnowych Puszczy Niepołomickiej
Dynamic site index curves for Scots pine stands in Niepolomice Primeval Forest
Autorzy:
Socha, J.
Orzeł, S.
Powiązania:
https://bibliotekanauki.pl/articles/973666.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewostany sosnowe
krzywe bonitacyjne
leśnictwo
Puszcza Niepołomicka
bonitacja drzewostanów
site index model
base−age invariant
height growth
Pinus sylvestris L.
Opis:
The aim of the research was to evaluate, under the conditions of the Niepołomice Primeval Forest, the usefulness of site index models applied in forest practice in Poland and to develop a local system of site index curves for Scots pine. The research materials included measurement results for the trees growing on 74 circular, 0.05 ha sample plots. On the basis of the completed analyses, the age−related change in stand heights in the Niepołomice Primeval Forest is different than the height growth described by means of the site index models used in forest practice in Poland. As a result of several−stage analyses, a dynamic system of site index curves was developed for the Niepołomice Primeval Forest allowing calculation of the site index, as well as forecast of the height of stands at any age.
Źródło:
Sylwan; 2011, 155, 05; 301-312
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamiczne krzywe bonitacyjne dla sosny zwyczajnej (Pinus sylvestris L.) z południowej Polski
Dynamic site index curves for Scots pine (Pinus sylvestris L.) in southern Poland
Autorzy:
Socha, J.
Orzeł, S.
Powiązania:
https://bibliotekanauki.pl/articles/993955.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany sosnowe
bonitacja drzewostanow
sosna zwyczajna
Pinus sylvestris
krzywe bonitacyjne
Polska Poludniowa
site index model
base−age invariant dynamic equation
height growth
site productivity
Opis:
The aim of the study was to develop a site index model for Scots pine stands in southern Poland describing changes in height growth of stand's upper storey over time. The research material contained the height growth data obtained from an analysis of 189 tree stems. The collected material was used to develop the parameters of six dynamic growth equations which allowed to determine site productivity and predict changes in height growth of stands with age. Statistical criteria for assessing the accuracy of mapping empirical data and biological reasonableness were the basis of selection of the equation that best fits changes in height growth of the examined pine stands with age. The developed model can be used to predict the growth rate and determine the site index for Scots pine stands in southern Poland.
Źródło:
Sylwan; 2013, 157, 01; 26-38
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Krzywe bonitacyjne świerka pospolitego na siedliskach górskich
Site index curves for Norway spruce on mountain habitats
Autorzy:
Socha, J.
Powiązania:
https://bibliotekanauki.pl/articles/973956.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
dendrometria
bonitacja siedliska
modele bonitacyjne
Picea abies
leśnictwo
drzewa leśne
świerk pospolity
góry
siedliska leśne
site index model
base−age invariant dynamic equation
height growth
picea abies (l.) karst.
Opis:
The aim of the study was to develop a site index model for mountain spruce stands. The research material contained the height growth data obtained from stem analysis of 95 trees. The collected material was used to calculate the parameters of four dynamic growth equations, which allowed to determine site productivity and predict height growth based on age and height of stands. The equation that best describes the height growth of the examined spruces was selected from among different solutions using statistical criteria for assessing the accuracy of fitting empirical data and biological realism. The developed model can be used to predict the height growth and determine the site index for mountain spruce stands.
Źródło:
Sylwan; 2011, 155, 12; 816-826
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modele bonitacyjne dla gatunków lasotwórczych Polski opracowane na podstawie tablic zasobności
Site index models for forest-forming tree species in Poland developed basing on the yield tables
Autorzy:
Socha, J.
Ochał, W.
Grabczyński, S.
Maj, M.
Powiązania:
https://bibliotekanauki.pl/articles/989707.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
gatunki lasotworcze
modele wzrostu
siedliska lesne
modele bonitacyjne
wskazniki bonitacji
site index
site index model
height growth models
Opis:
The objectives of this work was to develop a site index models for main forest−forming tree species in Poland based on data from published yield tables. The research material include growth series of birch, European beech, common oak, red oak, European hornbeam, European ash, Norway maple, small−leaved lime, black alder, trembling aspen, locust, Douglas fir, silver fir, European larch, Scots pine, and Norway spruce. Six algebraic difference models were preliminary selected for the construction of site index model. When selecting a potential models an assumption was made, that the index system should be characterized by good fit to the empirical data, polymorphism, variable asymptotes for different sites and equality of the site index and height at a certain base age. To estimate parameters of individual models all possible combinations among height−age pairs for each tree were used. The selection of the best model was based on fit criteria describing: proportion of variance explained, error range and standard deviation of the residuals. Best fitting model was selected basing on the sum of ranks from individual criteria and for each individual tree species a separate model was selected, which fits the best growth series from the yield tables. For 16 out of 19 species, the best fit statistics were demonstrated by the model developed on the base of the function [2]. Developed models may be used both in forestry practice and forestry research in order to estimate site index for analyzed tree species.
Źródło:
Sylwan; 2015, 159, 08; 639-649
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przyrost i wzrost nadziemnej i podziemnej części podrostów jodłowych w Nadleśnictwie Piotrków Trybunalski
The increment and growth of above- and belowground part of the fir undergrowth in the Piotrkow Trybunalski Forest District
Autorzy:
Skrzyszewski, J.
Taranowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1008941.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Nadlesnictwo Piotrkow Trybunalski
hodowla lasu
drzewa lesne
jodla pospolita
Abies alba
podrost
czesci nadziemne
korony drzew
strzala drzew
czesci podziemne
system korzeniowy
przyrost drzew
przyrost wysokosci
wzrost korzeni
abies alba
root system
height
length
growth
increment
poland
Opis:
The objective of the research was to determine the relationship between the dimensions and increment of the aboveground (easy to determine) and the belowground biomass of fir undergrowth in different shelter conditions. In the examined samples, the length of taproots (DKp) up to the age of 30 was dependent on its increment during the first three years of development. Later years saw an intensified growth of taproots. However, the differences from the first years of growth did not compensate for the differences in the first years. Reduced DKp growth was observed in the group of seedlings incrementing to a height of less than 4 cm. The height increment of fir undergrowth at about 20 years of age should not be less than 20 cm. The growth of roots and aboveground parts depends on other factors. The growth of roots was related to the growth of aboveground parts only to a small degree. Under the conditions of suppression, the extremely poor height increment of firs was compensated by the development of the aboveground biomass. With a moderate height increment (sufficient light availability) root growth was more intense. No clear relationship was found between the development of taproots and horizontal roots.
Źródło:
Sylwan; 2010, 154, 07; 488-498
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of municipal solid waste on the growth of maize (Zea mays L.)
Autorzy:
Simeon, P.O.
Ambah, B.
Powiązania:
https://bibliotekanauki.pl/articles/11002.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
municipal solid waste
plant growth
maize
Zea mays
pot experiment
greenhouse
growth parameter
plant height
leaf area
statistical analysis
Opis:
A pot experiment was conducted in the green house to determine the effect of municipal solid waste on the growth of maize (zea mays). Growth parameters of percentage emergence, plant height, leaf area and number of levers per plant were collect and subjected into statistical analysis, using ANOVA and fisher’s L.S.D. at 5 % probability level. Plant growth parameters decreased with increase in cropping cycle. Similarly, maize grown on dumpsite soils did better than the control soil samples. It show increase in plant height, leaf area and number of leaves per plant at a range of 16.82 cm to 12.87 cm, 5 to 4 and 64.69 cm to 59.88 cm for the dumpsite and control samples respectively. Soil PH, organic matter (OM), total Nitrogen (N), Phosphorus (P), Potassium (K), Calcium (Ca), Magnesium (Mg), Sodium (Na) and Effective Cat-ion Exchange Capacity (ECEC) decreased with increase in cropping cycle respectively. The Dumpsite soil sample recorded higher mean values than the control (P < 0.05). There is every indication that municipal solid waste is beneficial to plant if only proper and careful sorting and separation of hazardous waste is done.
Źródło:
International Letters of Natural Sciences; 2013, 02
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Response of winter rapeseed to biostimulator application and sowing method. Part I. Field architecture elements
Reakcja rzepaku ozimego na stosowanie biostymulatorów oraz sposób siewu. Cz. I. Elementy architektury łanu
Autorzy:
Sikorska, Anna
Gugala, Marek
Zarzecka, Krystyna
Powiązania:
https://bibliotekanauki.pl/articles/2216783.pdf
Data publikacji:
2018
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:
Brasscia napus L.
canopy lodging
growth bioregulators
plant density
plant height
sowing methods
stem thickness at the base
bioregulatory wzrostu
grubość łodygi u nasady
obsada roślin
sposoby siewu
ugięcie łanu
wysokość roślin
Opis:
Background. In plant production, reaching high and good quality yields of cultivated plants is achieved mostly thanks to the ability to counteract the occurrence of stress and the amendment of damage caused by stress . The aim of the study was to determine the effect of the applied biostimulator types and the sowing methods on the filed architecture elements of three winter rapeseed cultivars. Material and methods. Field experiment was carried out in years 2013-2016 at the Agricultural Experimental Station in Zawady (52o 03' N; 22o 33' E), which is part of the University of Natural Sciences and Humanities in Siedlce, Poland. The experiment was carried out in a split-split-plot design in three repetitions. The studied factors were: I – winter rapeseed cultivar: Monolit (open-pollinated), PR44D06 (restored hybrid of semidwarf growth type), and PT205 (restored hybrid of traditional growth type); II – sowing method: row sowing (row spacing 22.5 cm, sowing density 60 seeds per $1 m^2$), single-seed sowing (row spacing 45.0 cm, sowing density 40 seeds per $1 m^2$); III – types of the applied biostimulators: control (no biostimulators), Tytanit®, Asahi®SL, and Silvit®. Results. Research demonstrated significant effect of the applied biostimulator types and the sowing method on the biometric plant characteristics before harvest, such as: plant density, plant height, stem thickness at the base, first productive branch placement. The greatest plant height was found in the restored morphotype of traditional growth type and in the open-pollinated cultivar, whereas the highest first productive branch placement in cultivar PT205. Restored hybrids PT205 and PR44D06 were characterized by greater stem thickness at the base in comparison with the open-pollinated morphotype. Conclusion. Biostimulator Asahi SL had the greatest effect on plant density, plant height, stem thickness at the base, and first productive branch placement, whilst biostimulator Tytanit had the lowest effect. Applied bioregulator types did not affect canopy lodging. Sowing method significantly affected stem thickness at the base, although it did not significantly affect canopy lodging. Genetic factor did not determine plant number established before harvest or changes in canopy lodging. Diversified weather conditions in the study years affected the studied elements of field architecture.
Celem przeprowadzonych badań było określenie wpływu rodzajów stosowanych biostymulatorów oraz sposobów siewu na elementy architektury łanu trzech odmian rzepaku ozimego. Doświadczenie polowe przeprowadzono w latach 2013–2016 w Rolniczej Stacji Doświadczalnej Zawady (52 o 03' N; 22 o 33' E), należącej do Uniwersytetu Przyrodniczo-Humanistycznego w Siedlcach. Eksperyment przeprowadzono w układzie split-split-plot w trzech powtórzeniach. Badanymi czynnikami były: I – odmiana uprawna rzepaku ozimego: Monolit (populacyjna), PR44D06 (mieszańcowa zrestorowana o półkarłowym typie wzrostu), PT205 (mieszańcowa zrestorowana o tradycyjnym typie wzrostu); II – sposób siewu: siew rzędowy (rozstawa rzędów 22,5 cm, gęstość siewu 60 nasion na $1 m^2$), siew punktowy (rozstawa 45,0 cm, gęstość siewu 40 nasion na $1 m^2$); III – rodzaje stosowanych biostymulatorów: wariant kontrolny (bez stosowania biostymulatorów), biostymulator Tytanit®, biostymulator Asahi®SL, biostymulator Silvit®. Badania wykazały istotny wpływ rodzajów stosowanych biostymulatorów oraz sposobów siewu na cechy biometryczne roślin oznaczone przed zbiorem takie jak: obsada, wysokość roślin, grubość łodygi u nasady, wysokość osadzenia pierwszego rozgałęzienia produktywnego. Największą wysokość roślin stwierdzono w morfotypie zrestorowanym o tradycyjnym typie wzrostu i odmianie populacyjnej, zaś wysokość do pierwszego rozgałęzienia produktywnego u PT205. Mieszańce zrestorowane PT205 i PR44D06 cechowała większa grubość łodygi u nasady w porównaniu z morfotypem populacyjnym. Biostymulator Asahi SL wywierał największy wpływ na obsadę roślin, wysokość roślin, grubość łodygi u nasady, wysokość osadzenia do pierwszego rozgałęzienia produktywnego, zaś najmniejszy – Tytanit. Rodzaje stosowanych bioregulatorów nie determinowały ugięcia łanu. Sposób siewu istotnie kształtował grubość łodygi u nasady, jednak nie oddziaływał istotnie na ugięcie łanu. Czynnik genetyczny nie determinował liczby roślin oznaczonej przed zbiorem oraz zmian w ugięciu łanu. Wartości badanych elementów architektury łanu zależały istotnie od warunków klimatycznych panujących w latach prowadzenia doświadczenia.
Źródło:
Acta Scientiarum Polonorum. Agricultura; 2018, 17, 4; 205-214
1644-0625
Pojawia się w:
Acta Scientiarum Polonorum. Agricultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the height growth of Picea abies as related to the geographical regions of Krutzsch (IPTNS-IUFRO 1964-68, years 1969-1988)
Autorzy:
Sabor, J
Stanuch, H.
Powiązania:
https://bibliotekanauki.pl/articles/41503.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
provenance
genetic reactivity
selection value
height growth
geographic region
Beskid Sadecki Mountains
plant population
spruce
species range
Opis:
The juvenile height growth of Norway spruce (Picea abies (L.) Karst.) was studied in 1095 spruce provenances included in the IUFRO inventory provenance test of 1964/68. Trees growing on the experimental site established in Krynica in the Beskid Sądecki Mts. (Carpathians) were measured at ca. 3-year intervals in the period 1969-1988, from the age of 6 years (i.e. 2 years of planting) to 25 years. The variability of tree height in this spruce population was assessed on the basis of the means expressed in units of standard deviation, calculated for each provenance and each geographical region of Krutzsch in successive years of measurement. Using the standardised units made it possible to characterise the dynamics of spruce growth in provenances from 95 geographical regions representing the whole European range of the species. The effects of geographical region, tree age and their interaction on the variability of height growth within this range were estimated using multi-way analysis of variance with replicated measurements. The regions showing similar spruce growth trends were grouped by using hierarchical cluster analysis. The results on the juvenile dynamics of height growth showed that spruce provenances from various geographical regions of Krutzsch differ significantly in their genetic reactivity. Based on this, several groups of regions were identified: (1) regions with average or weak but stable spruce growth characterised by no significant effects of age or genotype × age interaction in the whole measuring period, or regions with height growth improving with age; (2) regions of spruce provenances constituting a selection elite, with very good height growth in the whole measuring period or in its later part, characterised by no G × A interaction; (3) regions with varied genetic reactivity of height growth dynamics in the juvenile period, and regions of Scandinavian populations with poorest height growth in the whole measuring period. The studies proved that spruce provenances from the regions of Štiavnické Pohorie, Low Tatras (Slovakia), Masurian Lakeland, Augustów Lakeland, Podlasie, Silesian Beskid Mts., Beskid Żywiecki Mts. (Poland), Jutland (Denmark), Bihor Mts., Transylvania, and Eastern Carpathians (Romania) have a high selection value.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tempo wzrostu wysokości dębu szypułkowego (Quercus robur L.) w dolnej warstwie drzewostanu sosnowego
Height growth rate of pedunculate oak (Quercus robur L.) in lower layer of Scots pine stand
Autorzy:
Paluch, R.
Powiązania:
https://bibliotekanauki.pl/articles/994087.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
odnowienia podokapowe
dab szypulkowy
Quercus robur
wzrost roslin
tempo wzrostu
modele wzrostu
pedunculate oak
height growth
undergrowth
Opis:
This study was carried out in north−eastern Poland in 20 Scots pine stands with well−developed lower layer of pedunculate oak. In each stand, 5 highest oak trees were selected. Basing on the stem analysis, a growth model for oak undergrowth in Scots pine stands was elaborated. It can be used for determination the height growth rate in relation to the age and height of oak. Obtained model was compared to the already existing one for oaks growing without canopy [Bruchwald at el. 1996]. Growth rate of undergrowth oaks was significantly delayed in the initial period by 20−30 years.
Źródło:
Sylwan; 2013, 157, 12; 909-916
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wzrost i przyrost wysokości dębu szypułkowego (Quercus robur L.) w dolnej warstwie drzewostanu sosnowego
Growth and increment of height of pedunculate oak (Quercus robur L.) undergrowth in Scots pine stands
Autorzy:
Paluch, R.
Powiązania:
https://bibliotekanauki.pl/articles/991145.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
dab szypulkowy
Quercus robur
wzrost roslin
przyrost wysokosci
odnowienia podokapowe
oslona gorna drzewostanu
drzewostany sosnowe
height
growth phases
undergrowth
pedunculate oak
Opis:
The study compares height growth of pedunculate oak (Quercus robur L.) undergrowth in Scots pine (Pinus sylvestris L.) stands and in open canopy conditions. Material was collected in 20 Scots pine stands with well−developed pedunculate oak undergrowth located in north−eastern Poland, representing the mixed deciduous forest type (Querco roboris−Pinetum). Fraction of oak undergrowth with slow height increment in Scots pine stands amounted 40% and was twice as high as in the open canopy conditions. On average 10 years longer than in the open canopy conditions juvenile phase characterizes the height growth of pedunculate oak undergrowth. A shift of height growth phases of oak undergrowth was recorded. However in most of the stands Scots pine shelter did not cause large delay in the age at which the culmination of current height increment of pedunculate oak is achieved.
Źródło:
Sylwan; 2014, 158, 08; 563-570
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 35

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