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Control of yield and quality of common buckwheat by soil water conditions

Research Project

Project/Area Number 21580012
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Crop science/Weed science
Research InstitutionShinshu University

Principal Investigator

HAGIWARA Motoyuki  信州大学, 農学部, 教授 (90172840)

Co-Investigator(Kenkyū-buntansha) 井上 直人  信州大学, 農学部, 教授 (80232544)
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords普通ソバ / 土壌水分 / 水ストレス / 受精 / 登熟 / 窒素吸収 / 葉温 / 倒伏指数 / 土壌過湿 / 収量 / 葉面積 / 茎重 / 挫折部モーメント / 受精率 / 不完全花率 / crop water stress index / 普涌ソバ / 乾物重 / 光合成速度 / 出液 / 下位節間長 / 挫折強度
Research Abstract

Common buckwheat variety Shinano No.1 was cultivated under various soil moisture conditions aiming at the improvement of yield and grain quality. Buckwheat plants grown under relatively excessive moisture conditions showed increased nitrogen absorption and tended to have larger biomass and yield. In contrast, those grown under dry conditions showed smaller amont of nitrogen absorption and lower fertilization rate of flowers, the former resulting in smaller biomass and the latter resulting in lower yield. Lodging registance of buckwheat plants grown under excessive soil moisture condtions was clarified to be closely correlated to the thickness of main stem. Therefore, water management to control soil moisture as high as possible avoiding decrease in stem thickness was suggested to improve both yield and grain quality.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (4 results)

All 2011 2010

All Presentation (4 results)

  • [Presentation] 普通ソバの受精~登熟の過程に及ぼす水ストレスの影響2011

    • Author(s)
      萩原素之,白峰,松下雄哉
    • Organizer
      第232回日本作物学会講演会
    • Place of Presentation
      山口
    • Year and Date
      2011-08-30
    • Related Report
      2011 Final Research Report
  • [Presentation] 普通ソバの受精~登熟の過程に及ぼす水ストレスの影響2011

    • Author(s)
      萩原素之・白峰・松下雄哉
    • Organizer
      第232回日本作物学会講演会
    • Place of Presentation
      山口大学農学部(山口県)
    • Year and Date
      2011-08-30
    • Related Report
      2011 Annual Research Report
  • [Presentation] 地下水位の差異が普通ソバの生育に及ぼす影響2010

    • Author(s)
      萩原素之・松下雄哉・白峰
    • Organizer
      日本作物学会
    • Place of Presentation
      北海道大学農学部
    • Year and Date
      2010-09-05
    • Related Report
      2010 Annual Research Report
  • [Presentation] 地下水位の差異が普通ソバの生育に及ぼす影響2010

    • Author(s)
      萩原素之,松下雄哉,白峰
    • Organizer
      第230回日本作物学会講演会
    • Place of Presentation
      札幌
    • Year and Date
      2010-09-02
    • Related Report
      2011 Final Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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