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Possiility of industrial afforestation by utilizing Melaleuca tree species in the abandoned acidic cultivation area in northern part of Okinawa prefecture

Research Project

Project/Area Number 25450218
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Forest science
Research InstitutionUniversity of the Ryukyus

Principal Investigator

SUWA Ryuichi  琉球大学, 農学部, 准教授 (30560536)

Co-Investigator(Kenkyū-buntansha) 谷口 真吾  琉球大学, 農学部, 教授 (80444909)
高嶋 敦史  琉球大学, 農学部, 助教 (40433099)
Co-Investigator(Renkei-kenkyūsha) TAKASHIMA Atsushi  琉球大学, 農学部, 助教 (40433099)
Project Period (FY) 2013-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsMelaleuca alterniforla / tee tree oil / terpinene-4-ol / acidic soil / Melaleuca / テルピネン4オール / シネオール / 精油 / メラルーカ / 胸高直径 / 樹高 / 木質材料 / 幹直径 / 降雪 / ティーツリー / ケモタイプ / テルピネン-4-オール / 1-8シネオール / alterniforia / 国頭マージ / 耕作放棄地 / M. cajupti / M. leucadendra / M. alterniforia
Outline of Final Research Achievements

In this study, we investigated the possibility of cultivation of Melaleuca trees in the acidic abandoned cultivation area in Okinawa Prefecture.The growth of various Melaleuca species was well documented.We could find terpinene-4-ol rich M. alternifolia line among several deferent seeds collection site.The essential oil collected from the leaves contained high terpinene-4-ol regardless of the seasonal factor and the vertical distribution position of the leaves. That is, it was shown that a large amount of essential oil of high quality can be stably produced.
In addition, from this tree species the material density of the breast height diameter part was 0.48 g / cm 3, and the longitudinal compression ratio at the moisture content of 12.6% was 36.3 N / mm 2. Although this tree species is a fast growing wild tree, it was shown that it also has value as a good quality wood application.

Report

(6 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (7 results)

All 2017 2016 2015 2014 Other

All Presentation (5 results) (of which Invited: 3 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Presentation] 沖縄県で栽培可能な有用な植物等の紹介2016

    • Author(s)
      諏訪竜一
    • Organizer
      沖縄の薬用植物等に関する講演会
    • Place of Presentation
      みずぷらっさ三階 多目的ホール(沖縄県覇市おもろまち1-1-1)
    • Year and Date
      2016-10-13
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 沖縄県における薬用植物について2015

    • Author(s)
      諏訪竜一
    • Organizer
      薬用植物講演会
    • Place of Presentation
      内閣府沖縄県総合事務局
    • Year and Date
      2015-10-27
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] 北部酸性土壌におけるメラルーカ(Melaleuca alternifolia)の栽培と精油品質に関する研究2015

    • Author(s)
      諏訪竜一・佐々木章伍・谷口真吾・高嶋敦史
    • Organizer
      沖縄農業研究会
    • Place of Presentation
      琉球大学
    • Year and Date
      2015-08-07
    • Related Report
      2015 Research-status Report
  • [Presentation] 沖縄県北部酸性土壌におけるメラルーカの栽培と抽出した精油成分の分析2015

    • Author(s)
      佐々木章伍・谷口真吾・高嶋敦史・小野朋典・渡邉健太・川満芳信・諏訪竜一
    • Organizer
      日本作物学会
    • Place of Presentation
      日本大学藤沢校
    • Year and Date
      2015-03-27 – 2015-03-28
    • Related Report
      2014 Research-status Report
  • [Presentation] 薬用作物の機能性について2014

    • Author(s)
      諏訪竜一
    • Organizer
      沖縄の薬用作物及び健康食品に関する講演会
    • Place of Presentation
      那覇第2地方合同庁舎1号館2階 大会議室
    • Year and Date
      2014-10-28
    • Related Report
      2014 Research-status Report
    • Invited
  • [Remarks] 琉球大学ブランド商品の記者発表を開催

    • URL

      http://www.u-ryukyu.ac.jp/top_news/brand2018040601/

    • Related Report
      2017 Annual Research Report
  • [Patent(Industrial Property Rights)] Université des Ryukyu ユニヴェルシテ・デ・リュウキュウ2017

    • Inventor(s)
      諏訪竜一、殿岡裕樹、河野恵美子
    • Industrial Property Rights Holder
      国立大学法人琉球大学
    • Industrial Property Rights Type
      特許
    • Filing Date
      2017
    • Related Report
      2017 Annual Research Report

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Published: 2014-07-25   Modified: 2019-07-29  

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