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Changes in the moisture content of Japanese cedar (Cryptomeria japonica D. Don) green wood for columns with the dimensions of 110×110×1000 mm during drying in environments of over 100°C and 1 atm were...
One hundred and fourteen 10-year-old standing C. japonica 38 clones were examined by a non-destructive method to ascertain the possibility of evaluating the wood quality of standing trees with breast-...
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 (...
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 ...
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...
The lateral impact vibration method is a non-destructive and high through-put method to estimate heartwood moisture content (MC) in living trees. We applied this method to an investigation of 37 clone...
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...
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...
We used a Pilodyn for estimating basic density in the green condition for the purpose of classifying logs of Cryptomeria japonica D. Don based on their density. The relationships between Pilodyn pene...
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...
The purpose of this study is to promote the utilization as structural lumber of medium size logs of 80-years-old sugi (Cryptomeria japonica D. Don). We measured the dynamic Young's modulus by longitud...

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