Browsing by Author "Gryc, Vladimír"
Now showing items 1-14 of 14
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Auxin (IAA) and soluble carbohydrate seasonal dynamics monitored during xylogenesis and phloemogenesis in Scots pine
(Italian Society of Silviculture and Forest Ecology, 2018)The metabolic activity of phytohormones and the accumulation of carbohydrates affect the reactivation of the cambial zone and the radial increment of woody plants. We aimed to monitor the dynamics of indole-3-acetic acid ... -
Description of Intra-Annual Changes in Cambial Activity and Differentiation of Secondary Conductive Tissues of Aesculus hippocastanum Trees Affected by the Leaf Miner Cameraria ohridella
(MDPI AG (Multidisciplinary Digital Publishing Institute-MDPI), 2021)Aesculus hippocastanum trees are commonly infested by the leaf miner Cameraria ohridella, whose larval activity causes the destruction of the leaf parenchyma and induces defoliation. Pest attacks result in, e.g., production ... -
Effect of different stand densities on xylem and phloem formation in Norway spruce plantations
(Brill, 2023)Preliminary results of an investigation of the thinning effect on Norway spruce tree growth in terms of xylogenesis and phloemogenesis are presented. Three plots were selected where the stand densities were reduced by ... -
Effects of Wood Particles from Deadwood on the Properties and Formaldehyde Emission of Particleboards
(MDPI AG (Multidisciplinary Digital Publishing Institute-MDPI), 2022)The volume of deadwood increases annually because of changes in environmental, climatic, and hydrological conditions. On the other hand, during the last decade, manufacturers of wood-based boards have been facing an acute ... -
FexIKA method parameters affecting black locust heartwood extraction yield
(North Carolina State University, 2018)The influence of certain adjustable parameters (sample property, temperature, and solvent type) on the advanced fexIKA extraction outputs was determined. Extracts were obtained from black locust (Robinia pseudoacacia L.) ... -
Is the quality of the non-native Douglas-fir wood produced in the Czech forests comparable to native softwoods?
(North Carolina State University, 2019)Important physical and mechanical properties were evaluated for Douglas-fir wood produced in a non-native environment. The specimens were obtained from 15 healthy co-dominant trees growing in three different sites located ... -
Partial asynchrony of coniferous forest carbon sources and sinks at the intra-annual time scale
(Nature Publishing Group, 2024)As major terrestrial carbon sinks, forests play an important role in mitigating climate change. The relationship between the seasonal uptake of carbon and its allocation to woody biomass remains poorly understood, leaving ... -
Physical Properties of Silver Fir (Abies alba L.) Wood Cladding Modified by Traditional Japanese Charring Method
(North Carolina State University, 2023)Silver fir (Abies alba L.) wood samples were charred on one surface using an enhanced version of the traditional Japanese Yakisugi method. The 15 charred boards obtained from five charring chimneys were divided into three ... -
Properties of lightweight particleboard made with sunflower stalk particles in the core layer
(Elsevier Science BV, 2023)In this study we assessed the efficacy of manufacturing lightweight particleboards using sunflower (Helianthus annuus L.) stalk particles. Three-layer lightweight particleboards with target densities of 350, 450 and 550 ... -
Properties of Plywood Panels Composed of Thermally Densified and Non-Densified Alder and Birch Veneers
(MDPI AG (Multidisciplinary Digital Publishing Institute-MDPI), 2023)Ukrainian companies mainly use birch in the manufacture of plywood, but species, such as black alder, are not yet widely used in the manufacture of plywood due to their poorer properties. It is well known that thermal ... -
Surface charring of silver fir wood cladding using an enhanced traditional Japanese Yakisugi method
(North Carolina State University, 2022)The aim of this work was to better understand the ignition method of timber charring in order to improve the industrial process. Three silver fir boards were tied together to make a triangular prism, which acted as a ... -
Temporal and spatial variability of phloem structure in Picea abies and Fagus sylvatica and its link to climate
(John Wiley & Sons, Inc., 2024)Using a unique 8-year data set (2010-2017) of phloem data, we studied the effect of temperature and precipitation on the phloem anatomy (conduit area, widths of ring, early and late phloem) and xylem-ring width in two ... -
Tree-ring width and variation of wood density in Fraxinus excelsior L. and Quercus robur L. growing in floodplain forests
(North Carolina State University, 2018)Oven-dry wood density variations are reported for European ash (Fraxinus excelsior L.) and English oak (Quercus robur L.) trees growing in floodplain mixed forests in South Moravia, Czech Republic. Two sites with different ... -
Xylogenesis and phloemogenesis of Norway spruce in different ages stands at middle altitudinal zone
(Výskumný ústav papiera a celulózy, Sekcia Slovenský drevársky výskumný ústav, 2020)This study aimed to determine the influence of the stand age and selected weather conditions on the cambial activity, xylem and phloem formation and their development. For the analysis, microcores were taken weekly from ...
