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Effect of timing of water fall, re-irrigation and water stress on photosynthetic capacity of individual rice leaves

Research Project

Project/Area Number 19K15944
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 41040:Agricultural environmental engineering and agricultural information engineering-related
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Tatsumi Kenichi  東京農工大学, (連合)農学研究科(研究院), 准教授 (40505781)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords作物モデル / 光合成 / 落水 / 再潅水 / 水ストレス / イネ / ガス交換測定 / 生育調査 / 収量調査 / 収量 / 窒素ストレス / 光合成能力
Outline of Research at the Start

落水と再潅水のタイミングおよび水ストレスレベルがイネ個葉の光合成能力に与える影響の評価と,得られた結果に基づく効果的な水管理の在り方の提案を目的とする.そのため,落水と再潅水のタイミングおよび土壌水分ストレスレベルに応じた計10処理区を設定し,1) ファイトトロンでのポット栽培とガス交換測定,2) 生育ステージごとにおける水ストレスレベルがイネ個葉の光合成能力に
与える影響の定量的評価と光合成および収量の観点に立脚した水管理の効果検証を実施する.

Outline of Final Research Achievements

To evaluate the effects of timing of water fall and re-irrigation and water stress level on photosynthetic capacity of individual rice leaves, and to propose effective water management, we conducted a growth survey, gas exchange measurement, and yield survey of rice plants in four treatments of water stress and fertilizer stress at Phytotron. The results showed that: 1) the original fertilizer determines plant height, biomass growth rate, and the number of offshoots; 2) water stress suppresses photosynthetic activity, and ear emergence during water stress is dependent on the use of assimilated substances stored before the stress period; 3) the degree of effect of water stress depends on the growth period and stage, and the effect of water stress before the ear emergence stage is relatively low. 3) The degree of effect of water stress varies depending on the growth period and stage, and water stress relatively does not suppress ear emergence before the ear emergence stage.

Academic Significance and Societal Importance of the Research Achievements

水ストレス下での栽培において,元肥を抑制して,分げつ数を減らし,出穂期前に間断灌漑を実施することで水利用効率,窒素利用効率を高めた資源節約型の水稲栽培が可能となる.また,イネ個葉の光合成能力を調べるにとどまらず,実際の水田圃場への適用を通じて得られる検証結果をもとに,気象・水・土壌がイネ生産性に与える複合影響の農業現場での応用が可能な高汎化型モデルの実現・確立を視野に入れている.以上,農学と情報科学の協合的発展を目指す点においても各専門分野でこれまで提示されてこなかった点で学術的意義や社会的意義がある.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (22 results)

All 2022 2021 2020 2019

All Journal Article (12 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 12 results,  Open Access: 9 results) Presentation (10 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] A Land-Use Change Model to Support Land-Use Planning in the Mekong Delta (MEKOLUC)2022

    • Author(s)
      Truong Quang Chi、Nguyen Thao Hong、Tatsumi Kenichi、Pham Vu Thanh、Tri Van Pham Dang
    • Journal Title

      Land

      Volume: 11 Issue: 2 Pages: 297-297

    • DOI

      10.3390/land11020297

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Prediction of Photosynthetic Carbon Assimilation Rate of Individual Rice Leaves under Changes in Light Environment Using BLSTM-Augmented LSTM2022

    • Author(s)
      Honda Masayuki、Tatsumi Kenichi、Nakagawa Masaki
    • Journal Title

      Computer Modeling in Engineering & Sciences

      Volume: 0 Issue: 3 Pages: 1-21

    • DOI

      10.32604/cmes.2022.020623

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Predicting the Photosynthesis Rate of Rice Leaves under Fluctuating Light Using LSTM2021

    • Author(s)
      Honda Masayuki、Tatsumi Kenichi、Nakagawa Masaki
    • Journal Title

      Agricultural Information Research

      Volume: 30 Issue: 2 Pages: 96-108

    • DOI

      10.3173/air.30.96

    • NAID

      130008060212

    • ISSN
      0916-9482, 1881-5219
    • Year and Date
      2021-07-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of Light Environment Differences on the Paddy Rice Yield in the Mountainous Area2021

    • Author(s)
      桒原 良樹、辰己 賢一
    • Journal Title

      Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering

      Volume: 89 Issue: 1 Pages: I_63-I_69

    • DOI

      10.11408/jsidre.89.I_63

    • NAID

      130007988664

    • ISSN
      1882-2789, 1884-7242
    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Dynamic Model for the Relationship between Rice Growth and Meteorology, Water, Nitrogen, and Canopy Structure2021

    • Author(s)
      Tatsumi Kenichi
    • Journal Title

      Transactions of the ASABE

      Volume: 64 Issue: 5 Pages: 1581-1610

    • DOI

      10.13031/trans.14371

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An Open-Source, Low-Cost Measurement System for Collecting Hydrometeorological Data in the Open Field2021

    • Author(s)
      Tatsumi Kenichi、Yamazaki Tomoya、Ishikawa Hirohiko
    • Journal Title

      Technologies

      Volume: 9 Issue: 4 Pages: 78-78

    • DOI

      10.3390/technologies9040078

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] LSTMによる光環境変動下におけるイネ個葉の光合成速度の予測2021

    • Author(s)
      本多誠之,辰己賢一,中川正樹
    • Journal Title

      農業情報研究

      Volume: 30 Pages: 98-110

    • NAID

      130008060212

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A DYNAMIC MODEL FOR THE RELATIONSHIP BETWEEN RICE GROWTH AND METEOROLOGY, WATER, NITROGEN, AND CANOPY STRUCTURE2021

    • Author(s)
      Kenichi Tatsumi
    • Journal Title

      American Society of Agricultural and Biological Engineers

      Volume: -

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prediction of plant-level tomato biomass and yield using machine learning with unmanned aerial vehicle imagery2021

    • Author(s)
      Kenichi TATSUMI; Noa Igarashi; Xiao Mengxue
    • Journal Title

      Plant Methods

      Volume: -

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Photosynthetic light-use efficiency of rice leaves under fluctuating incident light2019

    • Author(s)
      Kenichi Tatsumi, Yoshiki Kuwabara, Takashi Motobayashi
    • Journal Title

      Agrosystems, Geosciences & Environment

      Volume: Accepted Issue: 1

    • DOI

      10.1002/agg2.20030

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Monthly variability in the photosynthetic capacities, leaf mass per area and leaf nitrogen contents of rice (<I>Oryza sativa</I> L.) plants and their correlations2019

    • Author(s)
      Kenichi Tatsumi, Yoshiki Kuwabara, Takashi Motobayashi
    • Journal Title

      Journal of Agricultural Meteorology

      Volume: 75 Issue: 2 Pages: 111-119

    • DOI

      10.2480/agrmet.D-18-00043

    • NAID

      130007630085

    • ISSN
      0021-8588, 1881-0136
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of ozone on the growth and yield of rice (Oryza sativa L.) under different nitrogen fertilization regimes2019

    • Author(s)
      Kenichi Tatsumi, Tamami Abiko, Yoshiyuki Kinose, Shiro Inagaki & Takeshi Izuta
    • Journal Title

      Environmental Science and Pollution Research

      Volume: 26 Issue: 31 Pages: 32103-32113

    • DOI

      10.1007/s11356-019-06358-6

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] データ同化を実装した作物モデルによるトマトの生育及び収量の再現シミュレーション2021

    • Author(s)
      五十嵐乃愛・菊池祐介・辰己賢一
    • Organizer
      第79回農業食料工学会年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 深層学習を用いた画像の作物検出およびその領域抽出に関する研究2021

    • Author(s)
      本多誠之・辰己賢一
    • Organizer
      第79回農業食料工学会年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 作物成長モデルの高精度化に向けた根群域モデルの役割と課題2021

    • Author(s)
      辰己賢一
    • Organizer
      土壌物理学会大会 第63回シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 機械学習を用いたイネ個葉の光合成速度の予測2021

    • Author(s)
      本多誠之,辰己賢一
    • Organizer
      日本農業気象学会2020年全国大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 機械学習を用いたイネ個葉の光合成速度の予測2020

    • Author(s)
      本多誠之,辰己賢一
    • Organizer
      日本農業気象学会2020年全国大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Correlation analysis between land surface temperature and vegetation coverage based on Landsat-8 remote sensing imagery: a case study of Beijing, China2020

    • Author(s)
      Xiao Mengxue, Kenichi Tatsumi
    • Organizer
      International Symposium on Agricultural Meteorology 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] イネの鉛直葉群構造を考慮した成長応答モデルの開発2020

    • Author(s)
      辰己賢一
    • Organizer
      日本農業気象学会2020年全国大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 機械学習を用いたイネ個葉の光合成速度の予測2020

    • Author(s)
      本多誠之,辰己賢一
    • Organizer
      日本農業気象学会
    • Related Report
      2019 Research-status Report
  • [Presentation] Correlation analysis between land surface temperature and vegetation coverage based on Landsat-8 remote sensing imagery: a case study of Beijing, China2020

    • Author(s)
      XIAO Mengxue, Yaobin Sheng, Kenichi TATSUMI
    • Organizer
      ISAM2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] イネの鉛直葉群構造を考慮した成長応答モデルの開発2020

    • Author(s)
      辰己賢一
    • Organizer
      日本農業気象学会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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