Akamine Hikaru

写真a

Title

Associate Professor

Researcher Number(JSPS Kakenhi)

90244293

Current Affiliation Organization 【 display / non-display

  • Duty   University of the Ryukyus   Faculty of Agriculture   Subtropical Agro-Production Sciences   Associate Professor  

  • Concurrently   University of the Ryukyus   Faculty of Agriculture   Subtropical Agro-Production Sciences  

Academic degree 【 display / non-display

  • Kagoshima University -  Dr. (Agriculture)

External Career 【 display / non-display

  • 2009.04
    -
    2022.03

    University of the Ryukyus, Faculty of Agriculture, Department of Subtropical Agro-Production Sciences, Human and Agricultural Symbiotic Science, Associate Professor  

  • 2022.04
     
     

    University of the Ryukyus, Faculty of Agriculture, Department of Subtropical Agro-Production Sciences, Human and Agricultural Symbiotic Science, Associate Professor  

Affiliated academic organizations 【 display / non-display

  • 1900.04
    -
    Now
     

    Japanese Society of Turfgrass Science 

  • 1900.04
    -
    Now
     

    Japanese Society for Tropical Agriculture(JSTA) 

  • 1900.04
    -
    Now
     

    Journal of warm Regional Society of Animal Science, Japan 

  • 1900.04
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    Now
     

    The Japanese Society of Agricultural Machinery 

  • 1900.04
    -
    Now
     

    The Weed Science Society of Japan 

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Research Interests 【 display / non-display

  • 芝草,校庭芝生,緑地管理,園芸福祉,フィールド科学,菌根菌,屋上緑化,雑草防除

Research Areas 【 display / non-display

  • Environmental Science/Agriculture Science / Landscape science

  • Environmental Science/Agriculture Science / Environmental agriculture

Published Papers 【 display / non-display

  • Comparison Study of Allelochemicals and Bispyribac-Sodium on the Germination and Growth Response of Echinochloa crus-galli L.

    Masum S.

    Journal of Plant Growth Regulation ( Journal of Plant Growth Regulation )  38 ( 2 ) 501 - 512   2019.06 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Performance of Bangladesh indigenous rice in a weed infested field and separation of allelopathy from resource competition

    Masum S.

    Weed Biology and Management ( Weed Biology and Management )  19 ( 2 ) 39 - 50   2019.06 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Isolation and characterization of allelopathic compounds from the indigenous rice variety ‘boterswar’ and their biological activity against Echinochloa crus-galli L

    Masum S.

    Allelopathy Journal ( Allelopathy Journal )  43 ( 1 )   2018.01 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Allelopathic potential of indigenous Bangladeshi rice varieties

    Masum S.

    Weed Biology and Management ( Weed Biology and Management )  16 ( 3 ) 119 - 131   2016.09 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Effects of N, P and K on Growth Characteristics of Redflower ragleaf(Crassocephalum crepidioides)

    Akamine Hikaru,Nakamura Ichiro,Tamaki Masanobu,

    No.59 (2012/12) ( 琉球大学農学部 )  ( 59 ) 13 - 18   2013.06

    Type of publication: Research paper (bulletin of university, research institution)

     View Summary

    Redflower ragleaf (Crassocephalum crepidioides) is a weed as well as a functional vegetable in tropical and subtropical regions of the world. The experiment was conducted to evaluate fertilizer effects on growth characteristics of redflower ragleaf. The treatments were nitrogen (N), phosphorus (P), potassium (K), nitrogen plus phosphorus (NP), nitrogen plus potassium (NK), phosphorus plus potassium (PK), nitrogen plus phosphorus plus potassium (NPK) and control (Con,no fertilizer). Nitrogen, P and K were applied at 200 (1.0g/pot), 100 (O.5g/pot) and 100 kg/ha (0.5g/pot), respectively according to the experiment design. Redflower ragleaf grown with the application of N, NP, NK and NPK was greener, and had higher SPAD value than the plants grown with the P, K and PK. Leaf defoliation naturally started earlier in the plants grown without N application. Plant height, leaf number and branch number were highest in the plants grown with the NPK followed by NK or N. The plants grown without N application resulted in earlier flowering. Fresh and dry weight of the plants was the highest when grown with the NPK followed by NK and N. Phosphorous and K applied separately or together did not show any positive effect on growth parameters, fresh weight and dry weight of the plant, but showed positive effect when applied with the combination of N. Combined application of N, P and K resulted in the best effect on all growth parameters, fresh weight and dry weight of redflower ragleaf. (管理者追加)リポジトリ登録情報を移行しました。確認のうえ、加除修正をしてください。

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Presentations 【 display / non-display

SDGs 【 display / non-display

  • 沖縄におけるコーヒーノキ栽培の研究