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Global environmental change and ecophysiology of rice : fundamentals of sustainable food production.

Research Project

Project/Area Number 06454047
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 作物学
Research InstitutionMeiji University (1996)
University of Tsukuba (1994-1995)

Principal Investigator

IMAI Katsu  Meiji University, Professor, 農学部, 教授 (20125991)

Project Period (FY) 1994 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥6,800,000 (Direct Cost: ¥6,800,000)
Fiscal Year 1996: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1995: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1994: ¥5,000,000 (Direct Cost: ¥5,000,000)
KeywordsDry matter production / Environment regulation / Food production / Global environment / Mineral nutrients / Photosynthesis / Ecophysiology / Rice
Research Abstract

This work was focused to develop the fundamentals of crop production techniques predicted for the future climatic change (high CO_2, hothouse earth). Used materials was a japonica paddy rice (Oryza sativa L.cv.Nipponnbare) because this crop species sustains sbout half of world pupulation as a food. The important characteristics in the production processes (photosynthesis, respiration, assimilate translocation, tillering, leaf area, yield components, mineral nutrition, etc.) were examined under simulated growth environment (ambient and high levels of CO_2 [350vs.700ppm] and temperature with and without sufficient nutrient supply). Following results were obtained ;
(1) By the review process of preceding studies on high CO_2 and plant production, the investigator found many problems unsolved and/or unexamined. (2) Chloroplast structure of the leave was deformed by elevated CO_2 due to surpluss production of starch granule. This sometimes coupled with partial down-regulation of photosynthesis. (3) Leaf photosynthesis was affected greatly by light and vapor saturation deficit and preferred strong light and moderately higher moisture and temperature under high CO_2 conditions. (4) Successive measurements of photosynthesis and respiration during the growth revealed that the enhancement of dry matter production by high CO_2 was attributed to the promotion of photosynthesis coupled with active respiration, at least in vegetative stages. (5) Biomass production was substantially influenced by both nitrogen and phosphorus and their use efficiency in production process increased under high CO_2. (6) High CO_2 promoted paddy yield trough the increments of both the number of panicles per plant and the number of grains per panicle. However, grain quality tended to decline.
Based on the above results and preceding reports, the investigator discussed future climate change and rice production.

Report

(4 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] 今井勝: "地球環境変化に伴なう植物の生理・生態反応." 筑波大学地球環境変化特別プロジェクト研究報告集. 2. 32-56 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Takei,M.: "Growth and yield response of rice to elevated CO_2 and nitrogen fertilizer." Proceedings of the 2^<nd> Asian Crop Science Conference. 590-591 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Nomura,M.: "Effects of atmospheric partial pressure of CO_2 and phosphorus nutrition on the ultrastructure of rice chloroplasts." Proceedings of the 2^<nd> Asian Crop Science Conference. 592-593 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Nomura,M.: "Effects of atmospheric partial pressure of carbon dioxide and phosphorus nutrition on the ultrastructure of rice (Oryza sativa L.) chloroplasts." Japanese Journal of Crop Science. 64(4). 784-793 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Imai,K.: "CO_2 dependence of gas exchanges in rice leaves as affected by temperature,light and vapor saturation deficit." Environment Control in Biology. 33(4). 285-291 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Imai,K.: "Effects of atmospheric partial pressure of CO_2 and phosphorus nutrition on growth of young rice plants." Environment Control in Biology. 34(1). 59-66 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 野村幹雄: "水稲の生長と光合成に及ぼす空気中のCO_2濃度およびリン栄養の影響." 日本作物学会紀事. 65(別号1). 256-257 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Imai,K.: "Effects of atmospheric partial pressure of carbon dioxide on photosynthsis,respiration and growth of young rice plants." Abstracts of the 2^<nd> International Crop Science Congress. 32- (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 野村幹雄: "水稲の子実収量および穂の形質に及ぼす空気中CO_2分圧およびリン栄養の影響." 日本作物学会関東支部会報. 11. 56-57 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Peng,S.: "Climate Change and Rice." Springer-Verlag, 374 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Imai, K., I.Terashima, I.Washitani, S.Ishikawa, M.Kato and T.Koike: "Physiological and ecological responses of plants to global environmental change." Report of Special Research Project on Global Environmental Change, Univ.of Tsukuba. 32-56 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Takei, M.and K.Imai: "Growth and yield response of rice to elevated CO_2 and nitrogen fertilizer" Proc.2^<nd> Asian Crop Science Conference. 590-591 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Nomura, M.and K.Imai: "Effects of atmospheric partial pressure of CO_2 and phosphorus nutrition on the ultrastructure of rice chloroplasts." Proc.2^<nd> Asian Crop Science Conference. 592-593 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Imai, K.: "Physiological response of rice to carbon dioxide, temperature and nutrients." In : Climate Change and Rice (Peng, S.et al., Eds.), Springer-Verlag. 252-257 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Nomura, M., K.Imai and T.Matsuda: "Effects of atmospheric partial pressure of carbon dioxide and phosphorus nutrition on the ultrastructure of rice (Oryza sativa L.) chloroplasts." Japanese Journal of Crop Science. 64(4). 784-793 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Imai, K.and A.Kanda: "CO_2 dependence of gas exchanges in rice leaves as affected by temperature, light and vapor saturation deficit" Environment Control in Biology. 33(4). 285-291 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Imai, K.and N.Adachi: "Effects of atmospheric partial pressure of CO_2 and phosphorus nutrition on growth of young rice plants" Environment Control in Biology. 34(1). 59-66 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Nomura, M., K.Imai and K.Omasa: "Effects of atmospheric CO_2 concentration and phosphorus nutrition on growth and photosynthesis of rice." Japanese Journal of Crop Science. 65(S1). 256-257 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Imai, K.: "Effects of atmospheric partial pressure of carbon dioxide on photosynthesis, respiration and growth of young rice plants" Abstr.2^<nd> International Crop Science Congress. 32 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Nomura, M., K.Imai and M.Kato: "Effects of atmospheric partial pressure of carbon dioxide and phosphorus nutrition on grain yield and panicle characteristics of rice." Report of Kanto Branch, Japanese Society of Crop Science. 11. 56-57 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Imai,K: "Effects of atmospheric partial pressure of CO_2 and phoshorus nutrition on growth of young rice plants" Environment Control in Biology. 34(1). 59-66 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 野村幹雄: "水稲の生長と光合成に及ぼす空気中CO_2濃度およびリン栄養の影響." 日本作物学会紀事. 65(別号1). 256-257 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 野村幹雄: "水稲の子実収量および穂の形質に及ぼす空気中CO_2分圧およびリン栄養の影響." 日本作物学会関東支部会報. 11. 56-57 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Imai,K: "Effects of atmospheric partial pressure of carbon dioxide on photosynthesis,respiration and growth of young rice plants." Abstracts of the 2^<nd> International Crop Science Congress. 32- (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Nomura,Mikio: "Effects of atmospheric partial pressure of carbon dioxide and phesphorus nutrition on the ultrastructure of rice (Oryza sativa L. ) chloroplasts." 日本作物学会紀事. 64. 784-793 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Imai, Katsu: "CO_2 dependence of gas exchanges in rice leaves as affected by temperature, light and vapor saturation deficit." 生物環境調節. 33. 285-291 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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