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Growth and Wood Properties of Sugi（Cryptomeria japonica）Cultivars Planted in the Kyushu Region
sugi cultivar MuPS growth wood property
2009/3/6
This study examined growth and wood properties of sugi (Cryptomeria japonica D. Don) cutting cultivars planted in the Kyushu region. Sixteen cultivars (48 trees) which were identified based on MuPS (...
Properties of Sugi as High Bench Culture Media for Strawberries
Cryptomeria japonica bark allelopathy strawberry high bench culture
2009/3/6
The properties of bark and wood of sugi (Cryptomeria japonica D. Don) as high bench culture media for strawberries were investigated. Three cultivars, “Toyonoka”, “Kentarou” and “HS-138” were cultured...
Influence of Heartwood Extractives on Carbon Content Variations Among Clones in the Heartwood of Sugi（Cryptomeria japonica）
sugi broad-sense heritability extractives carbon content variation
2009/3/6
Heartwood extractives of Sugi (Cryptomeria japonica D. Don) had large variations among clones and high broad-sense heritability. Genetic improvement by selection of clones having large quantities of ...
Mechanical Properties of Built-up Members Composed of Sugi Planks Fastened Together with Wood Pegs I
Sugi plank built-up beam wood peg edgewise bending test
2009/3/6
Built-up beams were made of two Sugi (Cryptomeria japonica D. Don) planks fastened together with wood pegs. In this study we investigated the edgewise bending properties of Sugi planks and 2ply built-...
Relationships between Internal Cracks and Strains during High Temperature Drying of Sugi Boxed-Heart Square Timbers
high temperature drying strain gauge internal crack internal strain tensile stress
2009/3/6
Internal strains in sugi (Cryptomeria japonica D. DON) boxed-heart square timbers were measured by using strain gauges during high temperature drying above 100°C. We discuss relationships between inte...
Variation in Moisture Content of Sugi Boxed Heart Timber in Miyazaki Prefecture during Kiln Drying under High Temperature and Low Humidity II
sugi kiln-dry high temperature moisture content internal check
2009/3/6
Sugi (Cryptomeria japonica D. Don) boxed heart timbers from Miyazaki prefecture were kiln-dried at low humidity under two high-temperature conditions. The distribution of moisture content, changes in...
Effects of Initial Spacing on Growth and Wood Properties of Sugi（Cryptomeria japonica）Cutting Cultivars
Cryptomeria japonica, cutting cultivar, growth, wood property, initial spacing
2009/3/6
To determine the effect of initial spacing on growth and wood properties of sugi (Cryptomeria japonica D. Don) cutting cultivars, six cultivars (Iwao, Hinode, Yamaguchi, Yaichi, Shakain, Yabukuguri) w...
Improvement of Creep Resisting Performance of Kanawa-tsugi（Japanese Traditional Beam to Beam Joint）by Using the Recovery-property of Compressed Sugi Komisen
compressed wood contact stress creep relaxation of stress Kanawa-tsugi
2009/3/6
A very important problem that cannot be overlooked is the occurrence of long term relaxation on the contact stress and creep of Japanese traditional joints. This research to gain understanding and imp...
Development of Fundamental Research on Drying of Boxed-heart Square Timber of Sugi（Cryptomeria japonica）
sugi high temperature drying rapid drying checking prevention
2009/3/6
The development of efficient drying methods may be one of the keys for expanding the utilization of domestic sugi (Cryptomeria japonica D. Don) because of the remarkably high drying cost associated w...
Influence of External Log Quality on the Presence of Knots on Sawn Faces in Sawing Medium Diameter Sugi Logs
sugi log nomal quality external log quality clear sawn face
2009/3/6
We investigated the influence of external log quality on the presence of knots on the sawn faces through the sawing tests of medium diameter, normal quality sugi (Cryptomeria japonica D. Don) log.Whe...
Estimation of Annual Increase of Oven-dried Weight of Sugi（Cryptomeria japonica）Trunks
Estimation of biomass Cryptomeria japonica densitometry ring width mean density
2009/3/6
In order to estimate changes of carbon absorption by trees, a method for calculating annual increases of oven-dried weight of individual trunks from width and mean density of annual rings was establi...
Characterization of the Pulp-Like Fibers Separated from Sugi with L-Lactic Acid
wood components separation system L-lactic acid esterified cellulose derivatives
2009/3/5
The characterization of the process of separating cellulose fibers from wood by using L-lactic acid was investigated. Sugi (Cryptmeria Japonica) were cooked with L-lactic acid at 200°C for 1hr to be ...
The Evaluation of Modulus of Elasticity at an Early Stage of Growth in Sugi (Cryptomeria japonica) Wood Using S2 Microfibril Angle of Latewood Tracheids as a Wood Quality Indicator
Cryptomeria japonica S2 microfibril angle modulus of elasticity
2009/3/4
The objective of this study was to examine the evaluation of modulus of elasticity (MOE) in mature wood using microfibril angle at an early stage of growth. Several wood qualities, such as latewood t...