エダマメ収穫適期の指標 —莢厚増加速度，相対莢厚および子実重の利用—

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  • 細野 達夫
    国立研究開発法人農業・食品産業技術総合研究機構 中央農業総合研究センター
  • 片山 勝之
    国立研究開発法人農業・食品産業技術総合研究機構 近畿中国四国農業研究センター

書誌事項

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  • Pod Thickness Increase Rate, Relative Pod Thickness and Seed Weight of Edamame (Green Soybeans) at the Optimal Harvest Timing

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説明

To develop new indices for optimal harvest timing of edamame (green soybeans), pod thickness increase rate, relative pod thickness against the maximum and relative seed dry weight against the value at maturity as soybean, in addition to pod thickness, were correlated with the timing of when soluble sugar content in seed per fresh weight peaked. Two cultivars of edamame were used, ‘Niigata-chamame’ and ‘Yuagarimusume’.<br>Edamame is usually harvested during the mid to late pod filling stage of the soybean. During this stage, pod thickness increase rate gradually decreases and pod thickness against time is fitted by the quadratic function. Thus, the pod thickness increase rate linearly decreases with time during the period. At the optimal harvest timing, when sugar content in seed per fresh weight peaks, pod thickness increase rate, relative pod thickness, and relative seed dry weight are estimated to be around 0.15-0.20 mm/d, 90 % and 50 %, respectively.

収録刊行物

  • 生物と気象

    生物と気象 16 (0), 80-85, 2016

    日本農業気象学会

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