スギさし木品種の成長と木材性質へ及ぼす植栽密度の影響

Translated title of the contribution: Effects of Initial Spacing on Growth and Wood Properties of Sugi (Cryptomeria japonica) Cutting Cultivars

津島 俊治, 古賀 信也, 小田 一幸, 白石 進

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

To determine the effect of initial spacing on growth and wood properties of sugi (<i>Cryptomeria japonica</i> D. Don) cutting cultivars, six cultivars (Iwao, Hinode, Yamaguchi, Yaichi, Shakain, Yabukuguri) were examined. They were identified based on MuPS (Multiplex PCR of SCAR) markers type and had been planted at 1500, 3000, 5000 trees/ha.<br>Effects of initial spacing on growth and wood properties studied were significantly less than differences between cultivars. Diameter and volume growth for dense initial spacing was less than that for wide initial spacing. Wood density of mature wood, <i>L</i><sup>*</sup> of heartwood, dynamic Young's modulus of logs, compressive strength and modulus of elasticity for dense initial spacing were slightly higher, but green moisture content of heartwood and sapwood, and <i>a</i><sup>*</sup> of heartwood were lower than for wide initial spacing. Initial spacing had an effect on mechanical properties which was different for Yabukuguri than for the other 5 cultivars. Thus, wood properties of sugi were slightly influencd by initial spacing, although it was mainly influened by inheritance factors such as cultivar.
Original languageJapanese
Pages (from-to)196-205
Number of pages10
JournalMokuzai Gakkaishi/Journal of the Japan Wood Research Society
Volume52
Issue number4
DOIs
Publication statusPublished - Jul 25 2006

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Wood
Elastic moduli
Compressive strength
Moisture
Mechanical properties

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スギさし木品種の成長と木材性質へ及ぼす植栽密度の影響. / 津島俊治; 古賀信也; 小田一幸; 白石進.

In: Mokuzai Gakkaishi/Journal of the Japan Wood Research Society, Vol. 52, No. 4, 25.07.2006, p. 196-205.

Research output: Contribution to journalArticle

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abstract = "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) were examined. They were identified based on MuPS (Multiplex PCR of SCAR) markers type and had been planted at 1500, 3000, 5000 trees/ha.Effects of initial spacing on growth and wood properties studied were significantly less than differences between cultivars. Diameter and volume growth for dense initial spacing was less than that for wide initial spacing. Wood density of mature wood, L* of heartwood, dynamic Young's modulus of logs, compressive strength and modulus of elasticity for dense initial spacing were slightly higher, but green moisture content of heartwood and sapwood, and a* of heartwood were lower than for wide initial spacing. Initial spacing had an effect on mechanical properties which was different for Yabukuguri than for the other 5 cultivars. Thus, wood properties of sugi were slightly influencd by initial spacing, although it was mainly influened by inheritance factors such as cultivar.",
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