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International research network for the improvement of direct-seeded rice systems in stress-prone environments in tropical Asia

Research Project

Project/Area Number 18KK0169
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 39:Agricultural and environmental biology and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Kato Yoichiro  東京大学, 大学院農学生命科学研究科(農学部), 教授 (50463881)

Co-Investigator(Kenkyū-buntansha) 中島 大賢  北海道大学, 農学研究院, 助教 (70710945)
深野 祐也  東京大学, 大学院農学生命科学研究科(農学部), 助教 (70713535)
藤田 大輔  佐賀大学, 農学部, 准教授 (80721274)
Project Period (FY) 2018-10-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2021: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywordsイネ直播栽培 / イネ / 直播稲作 / 直播栽培 / 気候変動適応
Outline of Final Research Achievements

The project aimed to apply the basic findings of direct-seeded rice research to tropical rice ecosystems in Asia, and to establish an international research collaboration centered on the International Rice Research Institute (IRRI). Specifically, we developed and evaluated near-isogenic lines useful for tropical rice and direct-seeded rice cultivation (DNA marker-assisted selection), and selected promising lines in collaboration with the IRRI Breeding Program. In addition, the effectiveness of improved cultivation practices, such as fertilizer management and seeding management, was demonstrated in farmer fields in tropical Asia. As well as reporting the results of the collaborative research in scientific journal articles, we summarized the current status of direct-seeded rice research in the Asia-Oceania region at the 10th Asian Crop Science Conference (2021).

Academic Significance and Societal Importance of the Research Achievements

熱帯アジアでは移植稲作から直播稲作への急速な切り替えが進んでいる。この分野における国際研究連携体制の確立と日本人若手・中堅研究者の参画は農学分野における我が国のプレゼンス向上に資すると考えられる。本プロジェクトで実施した国際ネットワーク型研究による数多くの研究報告によって特にフィリピンやカンボジアとの研究連携が強化され、今後の熱帯稲作研究展開の土台になることが期待される。また、本研究で実証された直播稲作における栽培技術改善の効果は、熱帯アジア全体の直播稲作実施地域において有望である可能性があり、幅広くイネ生産安定性向上に寄与するものと期待される。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (17 results)

All 2024 2023 2021 2019 Other

All Int'l Joint Research (7 results) Journal Article (5 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (5 results)

  • [Int'l Joint Research] 農業省(東ティモール)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] 国際稲研究所(フィリピン)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] 国際稲研究所(フィリピン)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] 東ティモール農業水産省(東ティモール)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] 国際稲研究所/フィリピン稲研究所(フィリピン)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] 華中農業大学(中国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] ウボン稲研究所(タイ)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Agronomic assessment of the yield variability and yield gap of maize in Bhutan2024

    • Author(s)
      Wangmo Passang、Thinley Kinzang、Nakashima Taiken、Kato Yoichiro
    • Journal Title

      Crop and Environment

      Volume: 3 Issue: 1 Pages: 25-32

    • DOI

      10.1016/j.crope.2023.11.003

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Deep sowing of dry direct-seeded rice: cultivar differences in seedling establishment and grain yield2023

    • Author(s)
      Kanno Noriko、Garcia Ricardo、Suralta Roel R.、Corales Aurora M.、Bueno Crisanta S.、Banayo Ni?o P.M.C、Sta. Cruz Pompe C.、Kumar Virender、Kato Yoichiro
    • Journal Title

      Plant Production Science

      Volume: 26 Issue: 2 Pages: 197-208

    • DOI

      10.1080/1343943x.2023.2211277

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Farmer-participatory evaluation of mechanized dry direct-seeding technology for rice in northeastern Thailand2019

    • Author(s)
      Sansen Kanlaya、Wongboon Waraporn、Jairin Jirapong、Kato Yoichiro
    • Journal Title

      Plant Production Science

      Volume: 22 Issue: 1 Pages: 46-53

    • DOI

      10.1080/1343943x.2018.1557530

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development of hand tractor-mounted seed drill for rice-based cropping systems in the Philippines2019

    • Author(s)
      Bautista Elmer G.、Gagelonia Eden C.、Abon John E.、Corales Aurora M.、Bueno Crisanta S.、Banayo Ni?o P.M.C.、Lugto Roman V.、Suralta Roel R.、Kato Yoichiro
    • Journal Title

      Plant Production Science

      Volume: 22 Issue: 1 Pages: 54-57

    • DOI

      10.1080/1343943x.2018.1562309

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Late-season nitrogen applications improve grain yield and fertilizer-use efficiency of dry direct-seeded rice in the tropics2019

    • Author(s)
      Liu Hongyan、Won Phyo L.P.、Banayo Ni?o P.M.、Nie Lixiao、Peng Shaobing、Kato Yoichiro
    • Journal Title

      Field Crops Research

      Volume: 233 Pages: 114-120

    • DOI

      10.1016/j.fcr.2019.01.010

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 東ティモール小規模農家圃場における直播稲作と移植稲作の収量および生産コストの比較2024

    • Author(s)
      後藤優作・江草泰介・飯野徳太郎・加藤洋一郎
    • Organizer
      日本作物学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 東ティモールの小規模灌漑地域における直播稲作の空間分布特性2023

    • Author(s)
      江草泰介・後藤優作・佐藤赳・飯野徳太郎・加藤洋一郎
    • Organizer
      日本作物学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 東ティモールの直播稲作において施肥管理が収量へ及ぼす影響2023

    • Author(s)
      後藤優作・江草泰介・飯野徳太郎・加藤洋一郎
    • Organizer
      日本作物学会
    • Related Report
      2022 Research-status Report
  • [Presentation] Development of near-isogenic lines (NILs) for brown planthopper resistance genes with genetic background of indica rice IR642021

    • Author(s)
      Kamal, M., D. Nguyen, S. Zheng, D. Fujita
    • Organizer
      第139回日本育種学会講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Growth response of dry direct-seeded rice to N management regimes in rainfed lowlands2019

    • Author(s)
      N.P.M. Banayo, C. Bueno, R. Carandang, R. Suralta, E. Basuel, Y. Kato
    • Organizer
      日本作物学会
    • Related Report
      2018 Research-status Report

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Published: 2018-10-12   Modified: 2025-01-30  

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