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Analýza morfometrických parametrů tracheid dřeva smrku ztepilého (Picea abies (L.) Karst.) na výzkumné ploše Bílý Kříž a Rájec-Němčice
Novák, Tomáš
This thesis is about analysis of morphometric parameters of Norway spruce tracheid wood from research areas Bílý Kříž and Rájec–Němčice. Wood for examining was sampled from different heights of trees. Width of the annual ring and percentage of late wood was determined at macroscopic level. Annual ring width ranged from 2,2 to 4,5 mm. The percentage of late wood was found to be 24 %. Microscopic analysis of tracheid wood dimensions followed. Radial size of tracheids was determined and averaged 31 μm. Tracheid cell wall thickness ranged from 2 to 10 μm. The number of tracheids increases with trunk height as does the width of the annual ring. Wood density of sampled wood averaged 450 kg·m-3. The variability of the wood structure by radius and height was examined. Subsequently, the obtained data was compared with precipitation and temperature.
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Analýza morfometrických parametrů tracheid dřeva smrku ztepilého (Picea abies (L.) Karst.) na výzkumné ploše Bílý Kříž
Novák, Tomáš
The bachelor thesis is about analysis of morphometric parameters of Norway spruce tracheid wood from research area Bílý Kříž. Samples were taken from different tree heights and subsequently measured. At the macroscopic level were determined the ring width and the proportion of late wood in the ring, values were in range 25–30 %. The radial dimension and thickness of the wood tracheid walls of the wood were determined, which had values from 2 to 12 µm. The density of wood was calculated from the values of cellular thicknesses, which averaged 400–700 kg·m-3. Early and late tracheids (4–4,5 mm) were measured on a tangential section. The variability of the wood structure over the trunk radius and the trunk height was determined. Subsequently, the data were compared with climatic data.
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Anatomická stavba dřeva kmene borovice lesní s odkrytým kořenovým systémem
Martinek, Radomír
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