由參考文獻得知，植物在特定頻率的聲波刺激下能較快速成長。本研究以簡單的聲波裝置，固定聲波強度在100 db下，藉由改變頻率研究聲波對於綠豆的萌芽與幼苗成長之影響。以發芽率、相對鮮重、葉面積、莖長度和主根長度當作生長指標；並且分析根、莖、葉的相對可溶性蛋白、可溶性糖、澱粉和丙二醛含量作為生化指標。實驗結果顯示，聲波對於綠豆生長確有增進作用。在生長指標上對於綠豆葉面積促進最大；也發現在聲波影響下會增加綠豆的水分蒸散速率。此外在春季時期，刺激綠豆成長可能的最佳聲波頻率為1600 Hz，但再提升頻率則會對其生長產生抑制作用；另在夏季時期，刺激綠豆生長的最佳頻率則為3200 Hz，且聲波頻率越高對於綠豆主根的生長越好。如能找出每種植物的最佳刺激頻率，未來可以運用在增加各種農業的產量。

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