Life cycle adjustments controlling the periodic variations in blueberry stem diameter

2016 Fiscal Year Final Research Report

• Project/Area Number: 26450360
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Agricultural environmental engineering/Agricultural information engineering
• Research Institution: Tokyo University of Agriculture and Technology
• Principal Investigator: Chosa Tadashi 東京農工大学, (連合)農学研究科(研究院), 准教授 (10355597)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: ブルーベリー / 茎径計測 / 周期変動 / 環境制御 / モデル

Outline of Final Research Achievements

This study investigated how an artificial light environment influenced changes in blueberry stem diameter from dormancy to the embryonic stage. Periodic changes in stem diameter not related to leaf development were confirmed. A model of the changes in stem diameter induced by environmental factors was developed. A cantilever-type displacement monitor with a strain gauge was used to obtain non-destructive continuous measurements of stem diameter, together with a pressure-sensitive conductive elastomer sensor. The findings also verified that this monitoring method is simpler to use than existing stem-diameter measuring devices.

Free Research Field

農業環境工学