• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Studies on the annuality and perenniality in the genus Oryza

Research Project

Project/Area Number 02454038
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 作物
Research InstitutionChiba University

Principal Investigator

TAKASAKI Yasuo  Chiba University, Faculty of Horticulture, Professor, 園芸学部, 教授 (30009328)

Co-Investigator(Kenkyū-buntansha) ISODA Akihiro  Chiba University, Faculty of Horticulture, Research Assist., 園芸学部, 助手 (10183740)
NOJIMA Hiroshi  Chiba University, Faculty of Horticulture, Lecturer, 園芸学部, 講師 (30009550)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥7,100,000 (Direct Cost: ¥7,100,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥6,700,000 (Direct Cost: ¥6,700,000)
KeywordsOryza sativa / Oryza glaberrima / Annual / Perennial / Leaf senescence / ^<13>C / Translocation / Chlorophyll content / プロテア-ゼ活性 / ^<13>CO_2 / 貯蔵炭水化物
Research Abstract

The purpose of this study is to clarify the physiological characteristics of annuals and perennials in the genus Oryza. W492, a strain of O. glaberrima, and Norin no. 22, a cultivar of O. sativa were compared to ascertain (i) the accumulation pattern of dry matter into panicles (ii) leaf senescence and (iii) translocation of assimilates into plant parts. We consider W492 to be annual because it dies within one year even under a 24hr photoperiod-12hr/12hr temperature of 25/20゚C and we consider Norin no. 22 to be perennial because it continues growing mare than one year under natural day length-day/night temperature of 25/20゚C.
The dry matter accumulation pattern in panicles was almost the same in both strains, though W492 was a little faster than Norin no. 22 at the early stage of ripenning. However, this was not in consonance with the results of the preliminary trial which showed that the accumulation of dry matter in panicles was much more faster in W492 than in Koshihikari (a cultivar of O. sativa). More experiments will be needed to confirm this fact.
Leaf senescence indicated by chlorophyll content, SPAD values of a chlorophyll metre reading and nitrogen content was faster in W492 than in Norin no. 22. The difference in senescence between annual and perennial was very clear.
The rate of ^<13>C distributed to the various plant parts showed that the translocation of assimilates to panicles continued till later stage in Norin no. 22 than in W492. As the leaf area per plant of W492 decreased more rapidly than Norin no. 22, assimilating capacity per plant of W492 declined more sharply than Norin no. 22. Therefore, while Norin no. 22 was able to reserve some assimilates in the stubble during ripenning stage, W492 was not able to do so.
More detailed experiments are necessary to generalize the results on annuality and perenniality.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] 高崎 康夫: "1年生稲(O.glaberrima)と多年生稲(O.sativa)の登熟期における生育の差異" 日本作物学会紀事. 59ー別1. 190-191 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 東野 裕広: "Oryza sativaL.とOryza glaberrima Steud.における止葉の老化について" 日本作物学会紀事. 61ー別1. 128-129 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 高崎 康夫: "Oryza sativaL.とOryza glaberrinaの登熟期の転流について" 日本作物学会紀事.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Takasaki yasuo, Yohichi Seki, Akihiro Isoda and Hiroshi Nojima: "The differences is growth pattern between annual (Oryza glaberrima) and perennial (Oryza sativa) rice plants at the ripenning stage." Jap. J. Crop Sci.59-Extra issue 1. 190-191 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Higashino Yasuhiro, Akihiro Isoda, Hiroshi Nojima and Yasuo Takasaki: "Senescence of boot leaves of Oryza glaberrima Steud. and Oryza sativa." Jap. J. Crop Sci.61-Extra issue 1. 128-129 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Takasaki Yasuo, Atsuko Sonobe, Akihiro Isoda and Hiroshi Nojima: "Translocation of assimilates to various plant parts in Oryza glaberrima and Oryza sativa at the ripenning stage."

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 高崎 康夫: "1年生種(Oryza glaberrima)と多年生種(Oryza sativa)の登熟期における生育の差異" 日本作物学会紀事. 59ー別1. 190-191 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] 東野 裕広: "Oryza sativaLとOryza glaberrima Stevidにおける止め葉の老化について" 日本作用学会紀事. 61ー別1. 128-129 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 高崎 康夫: "Oryza sativaとOryza glaberrimaの発熟期の転流について" 日本作用学会紀事. 61ー別2. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 高崎 康夫: "1年生種(Oryza glaberrima)と多年生種(Oryza sativa)の登熟期における生育の差異" 日本作物学会紀事(予備試験の結果). 59ー別1. 190-191 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 高崎 康夫: "1年生稲(Oryza glaberrima)と多年生稲(Oryza sativa)の出穂期以降の炭水化物の転流・生育の違い" 日本作物学会紀事.

    • Related Report
      1990 Annual Research Report

URL: 

Published: 1990-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi