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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Emission of volatile organic compounds from cross section of spruce wood (Picea abies (L.) H.Karst)

100%
Czajka M., Fabisiak E.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2013
|
tom 82
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

The influence of the trunk cross section zone on the emission of VOC, chemical composition and structural parameters of fir (Abies alba Mill.)

100%
Czajka M., Fabisiak E.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2014
|
tom 87
3

Selected technical parameters of juvenile wood in Scots pine (Pinus sylvestris L.) – variation between social classes of tree position in the dominant stand

100%
Tomczak A.
Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria
|
2013
|
tom 12
|
nr 4
The study compared basic density, compressive strength along the grain, static bending strength and modulus of elasticity of juvenile wood in pines from different Kraft’s classes. Analyses were conducted in 8 mature pine monocultures in north-western Poland. In each experimental site a total of 9 trees were selected, thus the analyses were conducted on 72 model trees (with 24 for each social class of tree position in the stand). The highest values of analysed technical parameters were recorded for wood of co-dominant trees, the lowest were found for predominant trees, while intermediate values were recorded for wood of dominant trees. All the reported differences were statistically significant. Similar dependencies were observed when comparing wood from different sections of stems, with the greatest disproportions, frequently statistically significant, found in their lower sections.
4

Sorption properties of mature and juvenile lime wood (Tilia sp.)

100%
Majka J., Olek W.
Folia Forestalia Polonica. Series B - Drzewnictwo
|
2008
|
tom 39
5

The proportion and some selected physical and mechanical properties of juvenile maturing and adult wood of black pine and Scots pine

100%
Pazdrowski W.
Electronic Journal of Polish Agricultural Universities. Series: Forestry
|
2004
|
tom 07
|
nr 1
6

Wood radial cyclic heterogeneity of Norway spruce (Picea abies (L.) Karst.) derived from ripening stands

100%
Giefing D. F., Pazdrowski W., Splawa-Neyman S., Jelonek T., Tomczak A.
Electronic Journal of Polish Agricultural Universities. Series: Forestry
|
2005
|
tom 08
|
nr 4
7

Genetic aspect of differences in tracheid length of European larch families from seedling seed orchards

100%
Klisz M., Michalska A.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2012
|
tom 78
8
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Juvenile wood volume and its proportion to stem volume vs. selected biometric features of Scots pine [Pinus sylvestris L.] trees

100%
Pazdrowski W., Tomczak A., Kupczyk G., Jelonek T.
Acta Societatis Botanicorum Poloniae
|
2005
|
tom 74
|
nr 4
The aim of the study was to determine whether there is a correlation between breast height diameter, tree height and stem total volume of Scots pines, on the one hand, and volume and proportion of juvenile wood, on the other. The investigations comprised pure pine stands of the IInd, IIIrd, IVth and Vth age classes developed in conditions of fresh mixed coniferous forest. A distinct curvilinear correlation was found between volume and proportion of juvenile wood in tree stems and breast height diameter, height and stem total volume. Because of high values of determination coefficients (R2), which characterised the above-mentioned correlations, it seems appropriate to use these regularities to assess the quality of the timber raw material regarding the proportions of its volume and juvenile wood in stems of Scots pine trees.
9

The effect of age on desorption stress and strain rate in birch and aspen

100%
Widlak H.
Electronic Journal of Polish Agricultural Universities. Series Wood Technology
|
2002
|
tom 05
|
nr 2
The aim of the present study was to establish the value of desorption stresses and the rate of their increase in the samples of juvenile and mature birch wood as well as in aspen samples of different physiological age. The stress value was calculated on the basis of the measurement of the force necessary to restrain shrinkage in the sample being dried. Additionally, moisture strain and mechanical-moisture strain (both real and apparent) were measured during the experiments. The samples were dried at temperatures of 30, 50 and 70°C. It was concluded that both the rate of increase and the absolute values of stress and strain are different in juvenile and mature birch wood. Also in aspen they depend on the physiological age of the wood tissue. Juvenile birch wood and the physiologically younger aspen proved more susceptible to strain caused by desorption stresses.
10
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Genetic control of the wood density, tracheid dimension and annual ring traits-an analysis of genetic and phenotypic correlation in European Larch

80%
Klisz M.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2013
|
tom 83
11

Stage growth of trees and its effect on selected properties of Norway spruce wood (Picea abies (L.) Karst.)

80%
Pazdrowski W., Splawa-Neyman S.
Electronic Journal of Polish Agricultural Universities. Series: Forestry
|
2003
|
tom 06
|
nr 2
12
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

A study of selected features of Shan Tong variety of plantation paulownia and its wood properties

80%
Kozakiewicz P., Laskowska A., Ciolek S.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2020
|
tom 111
13

Volume and share of juvenile, maturing and mature wood in stems of Norway spruce (Picea abies [L.] Karst) grown in mixed mountain forest sites

80%
Nawrot M., Pazdrowski W., Szymanski M., Kupczyk G., Lubienski K.
Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria
|
2007
|
tom 06
|
nr 3
14
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Energetic properties of green chips made of branches of wood species Populus x euroamericana clone Pannonia grown on plantations

80%
Dzurenda L.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2013
|
tom 82
15
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Annual rings characteristic of Scots pine (Pinus sylvestris L.) wood from seedling seed orchard

80%
Mederski P., Bembenek M., Karaszewski Z., Giefing D. F., Tomczak A., Wegiel A.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2013
|
tom 83
16

Tree crown width and length as factors influencing the proportion of juvenile and mature wood in the bole of Scots pine and Norway spruce

80%
Jakubowski M.
Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa
|
2005
|
tom 91
429-434
17

Cyclical wood heterogeneity of Norway spruce Picea abies (L) Karst. on stem profiles of trees from different social positions in stands of age class IV

80%
Giefing D. F., Pazdrowski W., Jelonek T., Tomczak A., Kupczyk G.
Electronic Journal of Polish Agricultural Universities. Series: Forestry
|
2008
|
tom 11
|
nr 1
18

Density of bio fuel - of energy chips from dendromass of Salix viminalis plantation-grown coppice

80%
Dzurenda L., Banski A.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2013
|
tom 81
19

Radial variability of selected structural parameters of wood as indication of the juvenile growth period of robinia trees [Robinia pseudoacacia L.]

80%
Fabisiak E.
Folia Forestalia Polonica. Series B - Drzewnictwo
|
2002
|
tom 33
20

Stadial growth and its influence upon selected properties of European larch [Larix decidua Mill.] wood

80%
Splawa-Neyman S., Pazdrowski W.
Folia Forestalia Polonica. Series B - Drzewnictwo
|
2000
|
tom 31
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