Initial growth of Chamaecyparis obtusa in rooted cutting and seedling planted in a high altitude area on the Kyushu Mountains

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  • 九州山地の高標高地域に植栽されたヒノキ捕し木苗と実生苗の初期成長
  • 九州山地の高標高地域に植栽されたヒノキ挿し木苗と実生苗の初期成長
  • キュウシュウ サンチ ノ コウヒョウコウ チイキ ニ ショクサイサレタ ヒノキ サシ モク ナエ ト ミショウ ナエ ノ ショキ セイチョウ

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Abstract

We have been planted seedling for the plantation of Chamaecyparis obtuse in the Shiiba Research Rorest, Kyushu University. Recently, rooted cutting of C. obutusa has been developed. To investigate the usefulness of the root cutting of C. obtuse for the plantation in high elevation area on the Kyushu Mountains, we compared the survival ratio and growth rate between 2 rooted cutting cultivars, Nangouhi and Kamikou 2, and seedlings for initial 6 years. Two rooted cutting cultivars showed higher survival ratio and growth rate than seedlings. The rooted cuttings had littele damage by sika deer (Cervus nippon), while seedlings had severe damage.

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