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Elucidation of population dynamics of glyphosate-resistant Italian ryegrass and its application to Integrated Weed Management

Research Project

Project/Area Number 15K07324
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plant protection science
Research InstitutionShizuoka University

Principal Investigator

Yamashita Masayuki  静岡大学, 農学部, 教授 (30252167)

Co-Investigator(Kenkyū-buntansha) 澤田 均  静岡大学, 農学部, 教授 (10183831)
宮田 祐二  静岡県農林技術研究所, その他部局等, 研究員 (80426452)
亀山 忠  静岡県農林技術研究所, 静岡県農林技術研究所, 科長 (00542630)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords総合的雑草管理(IWM) / ネズミムギ / グリホサート除草剤抵抗性 / 総合的雑草管理 / 草刈り
Outline of Final Research Achievements

Italian ryegrass, which has become a problem weed as a source of spotted rice bugs in the paddy field margins, has acquired glyphosate resistance in Shizuoka Prefecture in recent years, making it more difficult to control them. Glyphosate resistant Italian ryegrass was found in some paddy fields margins in major paddy fields in Shizuoka Prefecture, and resistant individuals were found at more than half (59%) of all survey sites, especially in Chuen area. The authors focused on mowing grass, which can be an important component option of Integrated Weed Management (IWM), and devised mowing methods timed to the high flowering season. Field experiments were conducted in paddy fields, and it was shown that mowing during the flowering period was more effective in reducing the frequency of resistant ryegrass than early mowing that has been conventionally used in this area.

Academic Significance and Societal Importance of the Research Achievements

最も高頻度で使用されているグリホサート系除草剤に対する抵抗性雑草を研究対象とする本研究の成果から、難防除雑草ネズミムギの管理法だけではなく、日本における雑草管理技術の発展に寄与するものと考えられる。また、研究で調査対象とするグリホサート抵抗性ネズミムギは、世界で初めて水田畦畔の雑草集団から見つかった。このことは、世界全体における水田面積が極めて広く、今後も除草剤により管理される水田畦畔がアジアの途上国を中心に増加すると予想されることから、本研究で得られる成果は、日本のみならず世界全体においてグリホサート系除草剤に過度に依存しない総合的雑草管理技術(IWM)の確立に貢献するであろう。

Report

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

    (17 results)

All 2019 2018 2017 2016 2015

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Acknowledgement Compliant: 2 results) Presentation (12 results) (of which Invited: 1 results)

  • [Journal Article] グラスエンドファイトが種子食昆虫および宿主草種へ及ぼす影響2019

    • Author(s)
      山下雅幸・澤田 均
    • Journal Title

      日本草地学会誌

      Volume: 64 Pages: 272-275

    • NAID

      130007680146

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Grass endophyte symbiosis increases herbicide resistance in naturalized Italian ryegrass in Japan2018

    • Author(s)
      Masayuki Yamashita, Valentina Dwi Suci Handayani, Kosuke Tomita, Minoru Ichihara, Hitoshi Sawada
    • Journal Title

      Proceedings of the 7th Japan-china-Korea Grassland Science

      Volume: 7 Pages: 94-95

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Improved Physical Control of Glyphosate-Resistant Italian Ryegrass (Lolium multiflorum Lam.) on Rice Paddy Levees in Japan2017

    • Author(s)
      Valentina Dwi Suci Handayani, Yuki Tanno, Masayuki Yamashita, Hiroyuki Tobina, Minoru Ichihara, Yoshiki Ishida, Hitoshi Sawada
    • Journal Title

      Weed Biology and Management

      Volume: 印刷中 Issue: 2 Pages: 77-83

    • DOI

      10.1111/wbm.12121

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Influence of Weed Management Measures on Glyphosate Resistance and Endophyte Infection in Naturalized Italian Ryegrass (Lolium multiflorum Lam.)2017

    • Author(s)
      Valentina Dwi Suci Handayani, Yuki Tanno, Masayuki Yamashita, Hiroyuki Tobina, Minoru Ichihara, Yoshiki Ishida, Hitoshi Sawada
    • Journal Title

      Weed Biology and Management

      Volume: 印刷中 Issue: 2 Pages: 84-90

    • DOI

      10.1111/wbm.12122

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 静岡県内の水田周辺部におけるグリホサート抵抗性ネズミムギ(Lolium multiflorum Lam.)の分布状況2016

    • Author(s)
      市原実, 石田義樹, 小池清裕, 新實由貴, 木田揚一, 神谷径明, 鈴木亨, 済木千恵子, 山下雅幸, 澤田均
    • Journal Title

      雑草研究

      Volume: 61 Pages: 17-20

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Presentation] 静岡県浜松市のナシ園に自生するグリホサートおよびグルホシネート抵抗性ネズミムギに対する各種茎葉処理剤の効果2019

    • Author(s)
      市原実・冨永達・山下雅幸・澤田 均
    • Organizer
      日本雑草学会第58回大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Grass endophyte symbiosis increases herbicide resistance in naturalized Italian ryegrass in Japan2018

    • Author(s)
      Masayuki Yamashita, Valentina Dwi Suci Handayani, Kosuke Tomita, Minoru Ichihara, Hitoshi Sawada
    • Organizer
      The 7th Japan-China-Korea Grassland Conference
    • Related Report
      2018 Annual Research Report
  • [Presentation] 静岡県浜松市のナシ園におけるグリホサートおよびグルホシネートに対する抵抗性ネズミムギの出現2018

    • Author(s)
      市原実・冨永達・山下雅幸・澤田 均
    • Organizer
      日本雑草学会第57回大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ライグラス類の野生化とエンドファイト共生に関する研究2018

    • Author(s)
      山下雅幸
    • Organizer
      日本草地学会(熊本)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 静岡県浜松市のナシ園におけるグリホサートおよびグルホシ ネートに対する抵抗性ネズミムギの出現2018

    • Author(s)
      市原実・冨永達・山下雅幸・澤田均
    • Organizer
      日本雑草学会(東京)
    • Related Report
      2017 Research-status Report
  • [Presentation] Grass endophyte symbiosis increases herbicide resistance in naturalized Italian ryegrass in Japan2018

    • Author(s)
      Masayuki Yamashita, Valentina Dwi Suci Handayani, Kosuke Tomita, Minoru Ichihara, Hitoshi Sawada
    • Organizer
      The 7th Japan-China-Korea Grassland Conference, Sapporo, Japan
    • Related Report
      2017 Research-status Report
  • [Presentation] グラスエンドファイトが種子食性昆虫および宿主草種へ及ぼす影響2017

    • Author(s)
      山下雅幸・澤田 均
    • Organizer
      日本草地学会
    • Place of Presentation
      弘前大学(青森県弘前市)
    • Year and Date
      2017-03-22
    • Related Report
      2016 Research-status Report
  • [Presentation] 静岡県中遠地域の水田周辺部におけるグルホシネート抵抗性ネズミムギの発生実態2016

    • Author(s)
      市原実, 宮田祐二, 石田義樹, 山下雅幸, 澤田 均
    • Organizer
      日本雑草学会
    • Place of Presentation
      東京農業大学(東京都世田谷区)
    • Year and Date
      2016-03-30
    • Related Report
      2015 Research-status Report
  • [Presentation] 畦畔草地および輪作麦ほ場におけるエンドファイト感染/非感染ネズミムギの動態モデル2016

    • Author(s)
      浅井元朗, 澤田均, 山下雅幸, Valentina Dwi Suci Handayani, 市原実
    • Organizer
      日本雑草学会
    • Place of Presentation
      東京農業大学(東京都世田谷区)
    • Year and Date
      2016-03-29
    • Related Report
      2015 Research-status Report
  • [Presentation] グリホサート・グルホシネート複合抵抗性ネズミムギの出現2016

    • Author(s)
      倉田康平・下野嘉子・市原実・石田義樹・冨永達
    • Organizer
      日本雑草学会
    • Place of Presentation
      東京農業大学(東京都世田谷区)
    • Year and Date
      2016-03-29
    • Related Report
      2015 Research-status Report
  • [Presentation] 水田畦畔におけるグリホサート抵抗性ネズミムギの代替除草剤の選抜と,その体系処理の効果2015

    • Author(s)
      市原実・井鍋大祐・宮田祐二・神谷径明・鈴木亨・山下雅幸・澤田均
    • Organizer
      日本雑草学会
    • Place of Presentation
      秋田県立大学(秋田県秋田市)
    • Year and Date
      2015-04-19
    • Related Report
      2015 Research-status Report
  • [Presentation] Improved Physical Control of Glyphosate-Resistant Italian Ryegrass (Lolium multiflorum) on Rice Paddy Levees in Japan.2015

    • Author(s)
      Valentina Dwi Suci Handayani, Hitoshi Sawada, Yuki Tanno, Masayuki Yamashita, Hiroyuki Tobina, Minoru Ichihara
    • Organizer
      日本雑草学会
    • Place of Presentation
      秋田県立大学(秋田県秋田市)
    • Year and Date
      2015-04-18
    • Related Report
      2015 Research-status Report

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

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