Effect of diurnal rhythm of sugar concentration of the phloem sap on fruit developement

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14647
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Horticultural science
• Research Institution: The University of Tokyo
• Principal Investigator: Kawabata Saneyuki 東京大学, 大学院農学生命科学研究科(農学部), 教授 (10234113)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 師部液 / 近赤外線計測 / 概日リズム / 人工光型植物工場

Outline of Final Research Achievements

One of the most useful feature of indoor farm using artificial lightings is that the crop can be grown uder modified light cycles. Therefore, the yield and quality of the crop can be improved by optimising the light cycles．This study was conducted aiming to optimize the light cycles in terms of the transport of photosynthates from leaves to fruits，and develop a system for monitoring the oscillating photosynthesis and photosynthate transport．The near infra-red spectrum method was applied to monitor sucrose concentration of photosynthesising leaves．In addition, the use of photoreceptor mutants thatexibit modified circadian rhythms for modifying the diurnal changes in photosynthate transport into fruits．

Free Research Field

園芸学