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Cool and hot tolerance of the cleistogamous rice mutant at the flowering stage

Research Project

Project/Area Number 20580018
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Crop science/Weed science
Research InstitutionNational Agricultural Research Organization

Principal Investigator

KOIKE Setsuo  National Agricultural Research Organization, 東北農業研究センター・やませ気象変動研究チーム, 専門員 (60355279)

Co-Investigator(Kenkyū-buntansha) HYASHI Takami  独立行政法人農業・食品産業技術総合研究機構, 東北農業研究センター・やませ気象変動研究チーム, 主任研究員 (00355281)
YAMAGUCHI Tomoya  独立行政法人農業・食品産業技術総合研究機構, 東北農業研究センター・やませ気象変動研究チーム, 主任研究員 (10355282)
吉田 均  独立行政法人農業・食品産業技術総合研究機構, 作物研究所・稲遺伝子技術チーム, 主任研究員 (30355565)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsイネ / 耐暑性 / 耐冷性 / 閉花性イネ / 稔実歩合 / 花粉数 / 高温処理 / 冷温処理 / 受粉数 / 発芽花粉数 / 穎花内温度 / 閉花受粉性突然変異イネ / spw1-cls / 開花期高温処理 / 柱頭上受粉花粉数 / 閉花受粉 / 開花期 / 高温ストレス / 高温耐性
Research Abstract

Fertility percentages of the cleistogamous rice mutant were higher than those of the wild type varieties treated at 38C or 12C (hot or cool) conditions at the flowering stage. In the case of hot treatment, the cleistogamous rice was advantageous in pollen number on stigma and germinated pollen number than those of wild one. The temperature inside of cleistogamous rice spikelet was 2C lower than that of air temperature, and this may contribute to reduce hot temperature damage in cleistogamous rice.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (2 results)

All 2010 2009

All Presentation (2 results)

  • [Presentation] イネ花粉発芽培地の改良-カルシュウムの効果-2010

    • Author(s)
      林高見、山口知哉、小池説夫
    • Organizer
      日本作物学会
    • Place of Presentation
      宇都宮大学
    • Year and Date
      2010-03-30
    • Related Report
      2009 Annual Research Report
  • [Presentation] 閉花受粉性イネ突然変異体の開花期高温ストレス耐性2009

    • Author(s)
      小池説夫, 林高見, 山口知哉, 吉田均
    • Organizer
      日本作物学会第227回講演会
    • Place of Presentation
      つくば国際会議場エポカルつくば
    • Year and Date
      2009-03-28
    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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