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The Effect of Sound on Plant Growth

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The effect of continuous sound on the height, growth rate and percent germination of spring wheat was tested for 3, 5, 7 and 9kHz at 75DbA. The wheat was grown in soundproof growth chambers with a 16 hour photoperiod at 170 ft-ca. The daytime temperature was 24° with 78% relative humidity. Statistical analysis showed no significant effect of sound on plant height, growth rate or in percent germination. Further experiments with emphasis on sound intensity and temperature interaction are suggested.

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