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Biegefestigkeit vom Holz der europaischen Larche (Larix decidua Mill.) auf der Versuchsflache der Forstuntersuchungsanstalt LZD Siemianice

100%

Szaban J., Kowalkowski W., Jakubowski M.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2013

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tom 84

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Druckfestigkeit von Langstfasern der europaischen Larche (Larix decidua Mill.) verschiedener Provenienzen auf der Versuchsflache der LZD Siemianice

100%

Szaban J., Kowalkowski W., Jakubowski M.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2013

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tom 84

3

Compression strength of pine wood (Pinus sylvestris L.) from selected forest regions in Poland. Part II

100%

Mankowski P., Krzosek S.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2013

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tom 83

4

Wood macrostructure of Norway spruce (Picea abies [L.] Karst) coming from an experimental site in the Siemianice Forest Experimental Station

100%

Szaban J., Kowalkowski W., Jakubowski M., Wojciechowski G., Plonska K.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2014

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tom 88

Wood macrostructure of Norway spruce (Picea abies [L.] Karst) coming from an experimental site in the Siemianice Forest Experimental Station. The paper presents results of studies concerning the effect of provenance on the share of latewood in annual rings. Analyses were conducted on seven provenances grown on an experimental site located in the Siemianice Forest Experimental Station. It was established which of the investigated provenances have the greatest share of latewood in annual rings. It was also investigated which of the provenances differ significantly in terms of the analysed trait. Measurements were taken on discs collected from breast height of mean sample trees.

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Proportion of sapwood and heartwood in stems of European Larch (Larix decidua Mill.) origin from provenances experimental plot

100%

Jakubowski M., Szaban J., Kowalkowski W., Pawlaczyk A.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2014

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tom 88

Proportion of sapwood and heartwood in stems of European Larch (Larix decidua Mill.) origin from provenances experimental plot. The aim of this work was to statě wether the wood from different provenances of European Larch (Larix decidua Mili.) show differences in proportion of sapwood and heartwood in stems. Research were carried out on 56 trees erepresenting 6 provenances of larch: Bliżyn (10), Czerniejewo (5), Konstancjewo-Tomkowo (3), Krościenko (15), Rawa Mazowiecka-Trębaczew (6), Skarżysko (9). This plot is a part of unique research area established in 1966. Results show important differences between heartwood-sapwood proportion for two provenances: Krościenko - the heighest proportion (largest volume of heartwood) and Bliżyn the lowes proportion (least volume of heartwood). The other provenances show similar proportions.

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Effect of provenance on the survival of Picea abies trees on the IPTNS-IUFRO 1964-68 site in Krynica (Poland)

80%

Masternak K., Sabor J., Majerczyk K.

Dendrobiology

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2009

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tom 61 Supplement

In connection with the decline of spruce stands on the Krynica plots of IPTNS-IUFRO 1964/68, observed in the last decade and attributed to the so-called spiral disease, an attempt was made to determine whether the current health condition of trees is influenced by genotype (provenance). As shown by preliminary observations, the spruces differed in the degree of survival depending on provenance. The inventories of died or broken trees to be removed during the sanitary cutting, made in the years 2000, 2003, 2004 and 2008, yielded also information about the number of spruces that remained in the blocks of the experiment for each provenance and provenance region by Krutzsch (1968). Analysis of variance showed that genotype (provenance) has a statistically significant effect on the survival of trees. In the years 1999-2008, spruces from region 21 (Bohemian Forest) displayed the poorest survival rate in the conditions of the Beskid Sądecki Mts., while those from region 80 (Eastern Siberia) survived best.

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The radial variation of the selected physical and mechanical properties of Norway spruce (Picea abies (L.) H. Karst) wood from the provenance area in Głuchów

80%

Zawadzka K., Kozakiewicz P.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2019

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tom 105

8

Von den organischen Korpern, ihrer Ernahrung, ihrem Wachsthum und den Holzringen (Nach Hirsch 1762, v. Werneck 1791, Jester 1815, Kollmann 1961, Lexikon der Technik 1967)

80%

Dobrowolska E., Matejak M.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2012

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tom 77

Von den organischen Körpern, ihrer Ernährung, ihrem Wachsthum und den Holzringen (Nach Hirsch 1762, v. Werneck 1791, Jester 1815, Kollmann 1961, Lexikon der Technik 196). Im Artikel wird ein kurzer Überblick über die Ansichten verschiedener Autoren zwischen 1762 und 1967 zu Ernährung, Wachstum und Jahresringen des Holzes gegeben.

9

The effect of the late wood share upon density of the Polish pine wood as a function of its origin

80%

Chuchala D., Orlowski K., Krzosek S.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2012

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tom 77

The effect of the annual growth and the late wood share upon density of the Polish pine wood as a function of its origin. In the paper the variations of density of Polish pine (Pinus sylvestris L.) in a function of the late wood share in the annual growth with regard to the wood origin are presented. The measurement of density of wood was performed by using the stereometric method described in the works by Krzysik. This method consists in measurements the volume of the sample by determination of the various dimensions (length, width, height), and weighting of the sample mass. Nevertheless, measurements of the late wood share in the annual growth had been carried out according to own methodology which based on the classical method described in the work by Krzysik. The comparison was made for pine from natural forests derived from four different regions of Poland. The effect of the share of the late wood on the density Polish pine wood is observed. However, Pearson‘s r correlation coefficient values depend strongly on the examined wood origins.

Ograniczanie wyników

8 Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

1 Dendrobiology

4 Jakubowski M.

4 Kowalkowski W.

4 Szaban J.

2 Krzosek S.

1 Chuchala D.

1 Dobrowolska E.

1 Kozakiewicz P.

1 Majerczyk K.

1 Mankowski P.

1 Masternak K.

1 Matejak M.

1 Orlowski K.

1 Pawlaczyk A.

1 Plonska K.

1 Sabor J.

1 Wojciechowski G.

1 Zawadzka K.

1 2019

2 2014

3 2013

2 2012

1 2009

Biegefestigkeit vom Holz der europaischen Larche (Larix decidua Mill.) auf der Versuchsflache der Forstuntersuchungsanstalt LZD Siemianice

Druckfestigkeit von Langstfasern der europaischen Larche (Larix decidua Mill.) verschiedener Provenienzen auf der Versuchsflache der LZD Siemianice

Compression strength of pine wood (Pinus sylvestris L.) from selected forest regions in Poland. Part II

Wood macrostructure of Norway spruce (Picea abies [L.] Karst) coming from an experimental site in the Siemianice Forest Experimental Station

Proportion of sapwood and heartwood in stems of European Larch (Larix decidua Mill.) origin from provenances experimental plot

Effect of provenance on the survival of Picea abies trees on the IPTNS-IUFRO 1964-68 site in Krynica (Poland)

The radial variation of the selected physical and mechanical properties of Norway spruce (Picea abies (L.) H. Karst) wood from the provenance area in Głuchów

Von den organischen Korpern, ihrer Ernahrung, ihrem Wachsthum und den Holzringen (Nach Hirsch 1762, v. Werneck 1791, Jester 1815, Kollmann 1961, Lexikon der Technik 1967)

The effect of the late wood share upon density of the Polish pine wood as a function of its origin