Development of real-time measurement system for translocation dynamics of photosynthates in cultivation field.

2023 Fiscal Year Final Research Report

• Project/Area Number: 20K15632
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 41040:Agricultural environmental engineering and agricultural information engineering-related
• Research Institution: National Institutes for Quantum Science and Technology
• Principal Investigator: Miyoshi Yuta 国立研究開発法人量子科学技術研究開発機構, 高崎量子応用研究所 量子バイオ基盤研究部, 主任研究員 (60855724)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: 転流 / 光合成産物 / イチゴ / 非破壊計測 / RIイメージング / サップフロー

Outline of Final Research Achievements

This study attempts to develop a new technique that enables real-time measurement of translocation dynamics of photosynthates from leaves to harvesting organs during the growing period. By integrating positron-emitting tracer imaging system, which can visualize the movement of nutrients in plants, and sensors for measuring stem diameter and sap flow, we have developed a "real-time translocation measurement system" to evaluate the translocation dynamics based on changes in stem diameter and sap flow. This system makes it possible to evaluate the translocation dynamics of photosynthtaes in real time at the cultivation site, and is expected to lead to highly profitable and stable crop production through sophisticated cultivation management based on translocation.

Free Research Field

作物生産科学、生物環境調節学

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的意義は、植物の栄養分の移動を実際の栽培現場でリアルタイムに計測可能な技術を確立することで、植物が環境変化に適応してどのように同化産物の転流動態を調節するのか、植物の生命を支える根本的な問いに対する科学的知見を得られることにある。社会的意義としては、植物生理学の理解を深め、効率的な栽培管理を可能にすることで、高収益かつ安定した作物生産を実現し、農業生産性の向上と食料供給の安定化に寄与する。