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Studies on relationships between cytokinin and growth of persimmon grafted on dwarfing rootstock, MKR1

Research Project

Project/Area Number 15H04452
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Horticultural science
Research InstitutionUniversity of Miyazaki

Principal Investigator

Tetsumura Takuya  宮崎大学, 農学部, 教授 (00227498)

Co-Investigator(Kenkyū-buntansha) 田尾 龍太郎  京都大学, 農学研究科, 教授 (10211997)
雉子谷 佳男  宮崎大学, 農学部, 教授 (10295199)
本勝 千歳  宮崎大学, 農学部, 准教授 (30381057)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2016: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2015: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Keywords果樹 / カキ / わい性台木 / サイトカイニン / 園芸科学
Outline of Final Research Achievements

‘MKR1', a dwarfing rootstock for persimmon, makes persimmon tree size small, sets many flowers, inhibits early fruit drop and alternate bearing, impoves yield efficiency, and prohibits secondary shoot growth. These phenomena are likely to be related to a plant hormone cytokinin (tZ, tZR, iP, iPR, and so on), so we investigated its seasonal changes in the tree along with auxin (IAA), another plant hormone. tZ and tZR contents in the roots of ‘MKR1' rootstock trees significantly increased in June and July. At the same months, iP and iPR in the roots also increased, but IAA decreased. On the other hand, there were not any differences in concentrations of any investigated plant hormones in the shoots.

Academic Significance and Societal Importance of the Research Achievements

わい性台木の利用は、果樹栽培を容易にし、作業負担を軽減するだけでなく、農家の収益を高める技術である。しかし、その仕組みの詳細は未解明であり、カキについては全く研究が行われていない。研究代表者が開発した‘MKR1'を用い、植物ホルモンの1つであるサイトカイニンを中心に調査したところ、根に多量のサイトカイニンが蓄積されていることがわかった。しかし、地上部にその濃度に差のないことから、‘MKR1'の根が高濃度のサイトカイニンによって小型化することにより、根の成長が抑制され、その結果、地上部の成長も抑えられると推測された。これらの結果は、新たなわい性台木を作出する際の重要なポイントになると思われる。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (20 results)

All 2019 2018 2017 2016

All Journal Article (9 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (11 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Tree Growth, Flowering, and Fruiting of ‘Taishuu’ Japanese Persimmon Grafted onto Dwarfing Rootstocks2019

    • Author(s)
      Tetsumura Takuya、Ishimura Shuji、Takita Takashi、Funaki Shogo、Uchida Hiroharu、Hidaka Takumi、Haranoushiro Syo、Udatsu Yasuhiro、Matsuo Mitsuhiro、Honsho Chitose、Asakuma Hideaki
    • Journal Title

      The Horticulture Journal

      Volume: 88 Issue: 1 Pages: 57-66

    • DOI

      10.2503/hortj.UTD-020

    • NAID

      130007585352

    • ISSN
      2189-0102, 2189-0110
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of Planting Time, Irrigation System, Rooting Medium, and IBA Concentration on Cutting Propagation of the Persimmon Dwarfing Rootstock ‘MKR1’2018

    • Author(s)
      Hejazi Ziaurrahman、Ishimura Shuji、Honsho Chitose、Tetsumura Takuya
    • Journal Title

      The Horticulture Journal

      Volume: 87 Issue: 2 Pages: 184-192

    • DOI

      10.2503/hortj.OKD-125

    • NAID

      130006708541

    • ISSN
      2189-0102, 2189-0110
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Which is better for mother stock of leaf-bud cuttings of kaki (Diospyros kaki), root-sucker or hedge?2018

    • Author(s)
      Tetsumura T.、Ishimura S.、Honsho C.
    • Journal Title

      Acta Horticulturae

      Volume: 1212 Issue: 1212 Pages: 371-376

    • DOI

      10.17660/actahortic.2018.1212.85

    • Related Report
      2018 Annual Research Report
  • [Journal Article] カキの挿し木繁殖の改良2018

    • Author(s)
      鉄村琢哉
    • Journal Title

      果樹種苗

      Volume: 150 Pages: 10-13

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Improved rooting of softwood cuttings of dwarfing rootstock for persimmon under fog irrigation2017

    • Author(s)
      Takuya Tetsumura, Shuji Ishimura, Chitose Honsho, Hiroyuki Chijiwa
    • Journal Title

      Scientia Horticulturae

      Volume: 224 Pages: 150-155

    • DOI

      10.1016/j.scienta.2017.06.007

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hardwood and softwood cutting propagation of MKR1, persimmon dwarfing rootstock2017

    • Author(s)
      Z. Hejazi, S. Ishimura, C. Honsho, T. Tetsumura
    • Journal Title

      Acta Horticulturae

      Volume: 1174 Issue: 1174 Pages: 97-111

    • DOI

      10.17660/actahortic.2017.1174.20

    • Related Report
      2017 Annual Research Report
  • [Journal Article] カキわい性台木「MKR1」が地上部の成長におよぼす影響2017

    • Author(s)
      鉄村琢哉
    • Journal Title

      果実日本

      Volume: 72 Pages: 76-79

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Improvement in rooting of cuttings of FDR-1, a dwarfing rootstock for kaki2016

    • Author(s)
      T. Tetsumura, S. Ishimura, C. Honsho and H. Chijiwa
    • Journal Title

      Combined Proceedings International Plant Propagators’ Society

      Volume: 65 Pages: 113-115

    • Related Report
      2016 Annual Research Report
  • [Journal Article] 難発根性果樹カキのさし木2016

    • Author(s)
      鉄村琢哉
    • Journal Title

      森林遺伝育種

      Volume: 5 Pages: 187-192

    • Related Report
      2016 Annual Research Report
    • Open Access
  • [Presentation] Superiority of root-sucker over hedge as stock plant in cutting propagation of persimmon (Diospyros kaki)2018

    • Author(s)
      Takuya Tetsumura, Takashi Takita, Shuji Ishimura, Chitose Honsho, Yoshio Kijidani
    • Organizer
      30th International Horticultural Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] わい性台木‘MKR1’がカキ果実のビタミンC含有量および品質に及ぼす影響2018

    • Author(s)
      石村修司・瀧田隆志・本勝千歳・圖師一文・鉄村琢哉
    • Organizer
      園芸学会平成30年度秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] わい性台木に接いだカキ‘太秋’樹の成長および果実生産2018

    • Author(s)
      鉄村琢哉・石村修司・瀧田隆志・船木昭吾・内田大晴・日高拓未・原ノ後翔・宇田津康弘・松尾光弘・本勝千歳・朝隈英昭
    • Organizer
      園芸学会平成30年度秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 台木と摘蕾強度が‘平核無’の果実肥大および細胞の大きさに及ぼす影響2018

    • Author(s)
      瀧田隆志・石村修司・本勝千歳・鉄村琢哉
    • Organizer
      園芸学会平成30年度秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ひこばえから採取したカキ挿し穂は発根率だけでなく活着率も高い2018

    • Author(s)
      鉄村琢哉・石村修司・本勝千歳
    • Organizer
      園芸学会平成30年度春季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] カキわい性台木‘MKR1’の挿し木におけるかん水方法,IBA濃度および用土の検討2017

    • Author(s)
      Ziaurrahman Hejazi・石村修司・本勝千歳・鉄村琢哉
    • Organizer
      園芸学会平成29年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 中間台木‘MKR1’がカキ‘富有’の初期圃場成長に及ぼす影響2017

    • Author(s)
      石村修司・内田大晴・船木昭吾・瀧田隆志・本勝千歳・鉄村琢哉
    • Organizer
      園芸学会平成29年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] カキの挿し木 -ひこばえとヘッジ-2017

    • Author(s)
      鉄村琢哉・石村修司・本勝千歳
    • Organizer
      国際植物増殖者会議日本支部第24回沖縄大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Hardwood and softwood cutting propagation of MKR1, persimmon dwarfing rootstock2016

    • Author(s)
      Hejazi, Z., Ishimura, S., Honsho, C., Tetsumura, T.
    • Organizer
      国際植物増殖者会議日本支部第23回高知大会
    • Place of Presentation
      高知大学朝倉キャンパス
    • Year and Date
      2016-09-24
    • Related Report
      2016 Annual Research Report
  • [Presentation] 台木がカキ‘太秋’の着花に及ぼす影響2016

    • Author(s)
      鉄村琢哉・石村修司・瀧田隆志・船木昭吾・内田大晴・日高拓未・原ノ後翔・黒木志郎・松尾光弘・本勝千歳・千々和浩幸
    • Organizer
      園芸学会平成28年度秋季大会
    • Place of Presentation
      名城大学天白キャンパス
    • Year and Date
      2016-09-10
    • Related Report
      2016 Annual Research Report
  • [Presentation] 台木がカキ‘平核無’の果実肥大および細胞の大きさに及ぼす影響2016

    • Author(s)
      石村修司・船木昭吾・瀧田隆志・本勝千歳・鉄村琢哉
    • Organizer
      園芸学会平成28年度春季大会
    • Place of Presentation
      東京農業大学農学部厚木キャンパス
    • Year and Date
      2016-03-26
    • Related Report
      2015 Annual Research Report

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Published: 2015-04-16   Modified: 2020-03-30  

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