Effect of Growth Rate on Fibre Characteristics in Norway Spruce (Picea abies (L.) Karst.)
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H. Mäkinen
Summary
To study the effect of growth rate on fibre characteristics and their variations in Norway spruce, trees were sampled in a nutrient optimisation experiment in northern Sweden. Data was collected from 24 trees (40 years old) from fertilised and control plots after 12 years of annual nutrient application, as well as from older trees outside the experimental area. Fibre length, fibre diameter, cell wall thickness, lumen diameter and cell wall percentage were measured from every third annual ring at breast height and at a height of 4 m. Fibre properties, as well as their standard deviation, were closely related to ring number and distance from the pith. Intra-ring variation of fibre characteristics was high compared to their variation between trees. Fertilisation reduced fibre length and cell wall thickness, but increased fibre and lumen diameter in rings of the same age. The difference in fibre width, cell wall thickness and lumen diameter between fertilised and control trees was less apparent, but a greater difference in fibre length was found between the treatments with regard to distance from the pith. There was a similar effect of fertilisation on fibre properties in early- and latewood. The effect of enhanced growth rate was less pronounced at a height of 4 m (near the pith) than at breast height (in older rings). It was demonstrated that it is possible to model intra-tree variability of fibre characteristics using ring width and cambial age as independent variables. Models presented are, however, limited by the relatively young age of the sample trees used.
Copyright © 2002 by Walter de Gruyter GmbH & Co. KG
Articles in the same Issue
- Effect of Growth Rate on Fibre Characteristics in Norway Spruce (Picea abies (L.) Karst.)
- Techniques for Measuring Growth Stress on the Xylem Surface Using Strain and Dial Gauges
- Use of Soft Rot Cavities to Determine Microfibril Angles in Wood; Advantages, Disadvantages and Possibilities
- Surface Roughness and Color Change of Copper-Amine Treated Red Maple (Acer rubrum) Exposed to Artificial Ultraviolet Light
- Differences in Resin Acid Concentration between Brown-Rot Resistant and Susceptible Scots Pine Heartwood
- Antioxidant Activity of Abietane-Type Diterpenes from Heartwood of Taiwania cryptomerioides Hayata
- Hydrothermolysis of Flavonoids in Relation to Steaming of Japanese Larch Wood
- Impact of Pulping Conditions on FORMACELL Aspen Lignin: Investigation of Methoxyl and Ester Groups, Carbohydrates, Molar Mass and Glass Transition Temperatures
- Ethanol-Enhanced Alkaline Pulping of Arundo donax L. Reed: Influence of Solvent on Pulp Yield and Quality
- Reflectance FTIR Microspectroscopy for Studying Effect of Xylan Removal on Unbleached and Bleached Birch Kraft Pulps
- Structure of Thermally Modified Wood Studied by Liquid State NMR Measurements
- Detection on Incipient Fungal Attack in Wood Using Magnetic Resonance Parameter Mapping Wood Studied by Liquid State NMR Measurements
- Wood Density Determination by X- and Gamma-Ray Tomography
- The Influence of Wood Specimen Surface Coating on Moisture Movement during Drying
- Study of the System Wood – Coating Material. Part 2.Wood – Solid Coating Material
- Flake Drying Temperature Affects Mat Properties during Pressing
Articles in the same Issue
- Effect of Growth Rate on Fibre Characteristics in Norway Spruce (Picea abies (L.) Karst.)
- Techniques for Measuring Growth Stress on the Xylem Surface Using Strain and Dial Gauges
- Use of Soft Rot Cavities to Determine Microfibril Angles in Wood; Advantages, Disadvantages and Possibilities
- Surface Roughness and Color Change of Copper-Amine Treated Red Maple (Acer rubrum) Exposed to Artificial Ultraviolet Light
- Differences in Resin Acid Concentration between Brown-Rot Resistant and Susceptible Scots Pine Heartwood
- Antioxidant Activity of Abietane-Type Diterpenes from Heartwood of Taiwania cryptomerioides Hayata
- Hydrothermolysis of Flavonoids in Relation to Steaming of Japanese Larch Wood
- Impact of Pulping Conditions on FORMACELL Aspen Lignin: Investigation of Methoxyl and Ester Groups, Carbohydrates, Molar Mass and Glass Transition Temperatures
- Ethanol-Enhanced Alkaline Pulping of Arundo donax L. Reed: Influence of Solvent on Pulp Yield and Quality
- Reflectance FTIR Microspectroscopy for Studying Effect of Xylan Removal on Unbleached and Bleached Birch Kraft Pulps
- Structure of Thermally Modified Wood Studied by Liquid State NMR Measurements
- Detection on Incipient Fungal Attack in Wood Using Magnetic Resonance Parameter Mapping Wood Studied by Liquid State NMR Measurements
- Wood Density Determination by X- and Gamma-Ray Tomography
- The Influence of Wood Specimen Surface Coating on Moisture Movement during Drying
- Study of the System Wood – Coating Material. Part 2.Wood – Solid Coating Material
- Flake Drying Temperature Affects Mat Properties during Pressing
