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Image analysis of rice grain quality in Lao PDR and the present condition of market value: From self-sufficiency to market

Research Project

Project/Area Number 18K11801
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 80010:Area studies-related
Research InstitutionObihiro University of Agriculture and Veterinary Medicine (2022)
Japan International Research Center for Agricultural Sciences (2018-2021)

Principal Investigator

Kawamura Kensuke  帯広畜産大学, 畜産学部, 准教授 (90523746)

Co-Investigator(Kenkyū-buntansha) 小林 慎太郎  国立研究開発法人国際農林水産業研究センター, 社会科学領域, 主任研究員 (10508550)
浅井 英利  国立研究開発法人国際農林水産業研究センター, 生産環境・畜産領域, 主任研究員 (30599064)
Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords精米品質 / 画像診断 / ラオス / 市場価格 / 産業連関分析
Outline of Final Research Achievements

In this research, we aimed (1) to comprehensively quantify the characteristics of milled rice sold in the domestic market (size, percentage of grain quality, color, etc.) using imaging technology, which has made remarkable technological progress in recent years, and (2) to clarify the current market value (potential market value and its impact on farmers' income) through a questionnaire survey of consumers in the entire Lao PDR.
In our results, the relationship between the appearance traits of milled rice and market prices using a data set of 1,368 milled rice samples (market prices, trait information, and protein) showed that among the trait information affecting market prices, the contribution of "percentage of fine grains", "roundness", and "length" of milled rice varied by region. Especially in urban areas, the milled rice quality (good or bad appearance) tended to have a strong influence on the market prices.

Academic Significance and Societal Importance of the Research Achievements

多くのコメ品種を有するラオスでは,これまで代表的な品種の遺伝解析や農家の品種選択に向けた栽培関連形質の同定に関する研究が行われてきた。本課題でラオス全域から形質情報を網羅的に定量化することで,遺伝解析の表現型解析に求められるデータベースが揃うことになり,今後の優良品種の選抜も飛躍的に促進することが期待される。
また,形質情報の定量化は,現在のラオスのコメの品質を定量的に把握することにもつながり,国際的な品質基準に照らしたラオスのコメ輸出可能性を検討することも可能となる。これにより,ラオスのコメの輸出が世界のコメ市場やラオス経済に与える波及的な影響も推計することができるようになると期待される。

Report

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

    (5 results)

All 2020 2018 Other

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

  • [Int'l Joint Research] 国立農林業研究所(ラオス)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] 国立農林業研究所(ラオス)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] 国立農林業研究所(ラオス)

    • Related Report
      2018 Research-status Report
  • [Journal Article] The Relationship between the Physical Quality of Rice and the Market Price: A Case Study in Savannakhet, Laos, Using a Bayesian Approach2018

    • Author(s)
      Kawamura Kensuke、Asai Hidetoshi、Kobayashi Shintaro、Souvannasing Soukasdachanh、Sinavong Phonevilay、Inthavong Thavone
    • Journal Title

      Sustainability

      Volume: 10 Issue: 11 Pages: 4151-4151

    • DOI

      10.3390/su10114151

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] ラオスにおける精米の外形品質と市場価格の関係2020

    • Author(s)
      川村健介, 浅井英利, 安田泰輔, Soisouvanh, P., Phongchanmixay, S., Vongphuthone, B., Songyikhangxeuthorth, K., Souvannasing, S. and Inthavong, T.
    • Organizer
      システム農学会2020年度大会
    • Related Report
      2020 Research-status Report

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Published: 2018-04-23   Modified: 2024-01-30  

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