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Effects of elevated atmospheric CO2 concentration on the competition between rice and paddy-field weeds

Research Project

Project/Area Number 19580019
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Crop science/Weed science
Research InstitutionNational Institute for Agro-Environmental Sciences

Principal Investigator

SAKAI Hidemitsu  National Institute for Agro-Environmental Sciences, 大気環境研究領域, 主任研究員 (00354051)

Co-Investigator(Kenkyū-buntansha) 程 為国  農業環境技術研究所, 大気環境研究領域, 特別研究員 (80450279)
Co-Investigator(Renkei-kenkyūsha) CHENG Weiguo  独立行政法人農業環境技術研究所, 大気環境研究領域, 農環研特別研究員 (80450279)
Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2007: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords気候変動 / 水稲 / 収量 / 雑草 / 競合 / CO_2 / 水田 / 水田雑草 / 温暖化 / 生長応答 / CO2
Research Abstract

Monochoria vaginalis and Scirpus juncoides showed higher growth responses to elevated CO_2 than rice. Echinochloa oryzoides responded to elevated CO_2 only under higher temperature condition, showing the interaction between CO_2 concentration and temperature. Elevated CO_2 stimulated the competition between rice and paddy-field weeds, which decreased rice yields under the future CO_2 concentration.

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (13 results)

All 2010 2009 2008

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (11 results)

  • [Journal Article] The lowland paddy weed Monochoria vaginalis emits N2O but not CH42010

    • Author(s)
      Weiguo Chen, Hidemitsu Sakai, Seiichi Nishimura, Kazuyuki Yagi, Toshihiro Hasegawa
    • Journal Title

      Agriculture, Ecosystem and Environment 137巻

      Pages: 219-221

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] The lowland paddy weed Monochoria vaginalis emits N_2O but not CH_42010

    • Author(s)
      W.Chen, H.Sakai, S.Nishimura, K.Yagi, T.Hasegawa
    • Journal Title

      Agriculture, Ecosystem and Environment 137

      Pages: 219-221

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] 温度およびCO2濃度の上昇が水田雑草の成長に及ぼす影響2010

    • Author(s)
      酒井英光
    • Organizer
      日本農業気象学会2010年度全国大会
    • Place of Presentation
      名城大学
    • Year and Date
      2010-03-18
    • Related Report
      2009 Final Research Report
  • [Presentation] 温度およびCO_2濃度の上昇が水田雑草の成長に及ぼす影響2010

    • Author(s)
      酒井英光、程為国、長谷川利拡
    • Organizer
      日本農業気象学会2010年度全国大会
    • Place of Presentation
      名城大学
    • Year and Date
      2010-03-18
    • Related Report
      2009 Annual Research Report
  • [Presentation] 大気CO2濃度の上昇に対する水稲および水田雑草の生長応答の比較2009

    • Author(s)
      酒井英光
    • Organizer
      日本作物学会第227回講演会
    • Place of Presentation
      つくば国際会議場エポカル
    • Year and Date
      2009-03-28
    • Related Report
      2009 Final Research Report
  • [Presentation] 大気CO_2濃度の上昇に対する水稲および水田雑草の生長応答の比較2009

    • Author(s)
      酒井英光
    • Organizer
      日本作物学会第227回講演会
    • Place of Presentation
      つくば国際会議場エポカル
    • Year and Date
      2009-03-28
    • Related Report
      2008 Annual Research Report
  • [Presentation] Emissions of CO_2, CH_4, N_2O and C_2H_4 from plant tissues of a lowland weed, Monochoria vaginalis2009

    • Author(s)
      程為国
    • Organizer
      日本農業気象学会2009年度全国大会
    • Place of Presentation
      福島県農業総合センター
    • Year and Date
      2009-03-27
    • Related Report
      2008 Annual Research Report
  • [Presentation] Azolla filiculoides, a floating aquatic fern response to elevated [CO2] with high temperature and P nutrient2009

    • Author(s)
      程為国
    • Organizer
      12th European Weed Research Society Symposium
    • Place of Presentation
      フィンランド
    • Related Report
      2009 Final Research Report
  • [Presentation] Azolla filiculoides, a floating aquatic fern response to elevated [CO_2] with high temperature and P nutrient2009

    • Author(s)
      W.Chen, H.Sakai, K.Yagi, T.Hasegawa
    • Organizer
      12^<th> European Weed Research Society Symposium
    • Place of Presentation
      Finland
    • Related Report
      2009 Annual Research Report
  • [Presentation] 大気中の二酸化炭素濃度の上昇が水生シダ植物アゾラ(Azolla filiculoid)の増殖に及ぼす影響2008

    • Author(s)
      程為国
    • Organizer
      日本作物学会第226回講演会
    • Place of Presentation
      神戸大学
    • Year and Date
      2008-09-25
    • Related Report
      2009 Final Research Report
  • [Presentation] 大気中の二酸化炭素濃度の上昇が水生シダ植物アゾラ (Azolla filiculoid) の増殖に及ぼす影響2008

    • Author(s)
      程為国
    • Organizer
      日本作物学会第226回講演会
    • Place of Presentation
      神戸大学農学部
    • Year and Date
      2008-09-25
    • Related Report
      2008 Annual Research Report
  • [Presentation] 夜温および大気CO_2濃度の上昇が水稲の登熟過程に及ぼす影響2008

    • Author(s)
      酒井 英光
    • Organizer
      日本作物学会第225回講演会
    • Place of Presentation
      農林水産省農林水産技術会議事務局筑波事務所
    • Year and Date
      2008-03-28
    • Related Report
      2007 Annual Research Report
  • [Presentation] Combined effects of elevated[CO_2]and high night temperature on carbon assimilation,nitrogen absorption and their allocations of rice2008

    • Author(s)
      程 為国
    • Organizer
      日本作物学会第225回講演会
    • Place of Presentation
      農林水産省農林水産技術会議事務局筑波事務所
    • Year and Date
      2008-03-28
    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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