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What genre of music stimulates plant growth most effectively

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Nomi Kligler

on 5 October 2014

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Transcript of What genre of music stimulates plant growth most effectively

Which genre of music stimulates plant growth most effectively?
Experiment
For this experiment I chose to study the effect music and sound waves have on plants. Even though this has been the subject of many previous experiments, I was very interested in the fact that music could affect plants the same way it affects humans.
Background
In 1973 Dorothy Retallack published a book titled The Sound of Music and Plants, which detailed her experiments. Retallack found that a plant placed in a chamber with classical music grew abundantly and the plants that listened to rock music grew unhealthily and soon died. She also found that the plants leaned toward the speakers playing the music they responded well to (classical, soothing) and leaned away from speakers playing music that they responded badly to (rock, non-melodious)
What did I do?
My experiment was definitely not as in depth or precise as previous ones conducted in serious science facilities but I still managed to collect some interesting data. 19 days after I planted the bean seeds and played music to them as much as possible these were the standings:
More Data
The set-up of my experiment
Rock
: 18.5 cm high, with 1 leaf
Country
: 20 cm high, with 2 leaves
and another shoot at 11 cm tall, with 2 small leaves
Classical
: 19 cm high, with 2 leaves
Pop
: 8.5 cm high, 1 1/2 leaves and another shoot
at 6 cm tall, no leaves
No music
: 9 cm tall with no leaves and another shoot at 2 cm tall, no leaves.

Information
23 days after bean seeds were planted:
Rock
: 25 cm high, with one 8.5 cm long leaf
Country
: 19 cm high, with 2 leaves at 6.5 cm and 5 cm long and another shoot at 21 cm, with two 5 cm leaves
Classical
: 21 cm high, with two leaves at 6 cm and 7 cm long
Pop
: 15 cm high, with 2 leaves at 4.5 cm and 2 cm long and another shoot at 7 cm with no leaves
No music
: 12 cm high with no leaves and another shoot: 9 cm high, no leaves
Diagram of what different sounds waves might look like in music
• The Mozart Effect is a theory that listening to the composer's music enhances brain-function. Mozart's music may also encourage plant growth. Some vineyards actually play classical music over speakers for extra stimulation.
• Science is now showing that sounds do influence plant growth through electromagnetic energy. Sounds can be constructed to correspond with certain amino acids.
• There is a creative hypothesis that natural disasters such as earthquakes positively impact plant growth. These are vibrations on a much larger scale but vibrations in music could be paralleled.
• Most scientists agree that seeds exposed to music germinate faster.
My hypothesis
My hypothesis is that the plants that listen to classical music will grow the most and plants that listen to rock music will grow less effectively. This is because of the different tones and frequencies in the two music genres and based on information collected in previous experiments dealing with a similar question.

Conclusion
While I have some evidence, I don't have enough for a highly conclusive experiment because of the number of variables and the time constraint. My hypothesis was disproved, because the plant that listened to country music grew the most, with two healthy sprouts. Classical followed closely after, third was rock and plant that listened to pop music lagged behind, along with the plant that listened to no music. My theory for this is that the two genres with more soothing sounds and instruments encouraged plant growth better than the loudness of rock music, or the strange beats in today's hits. However, music of any kind obviously assists a plant's growth. In conclusion, this was a very interesting experiment and would be curious to experiment more in this field.
The process of a
bean plant's growth
Sources
Ayumu, T. (2013, June 2). The Impacts of Natural Disasters on Plants' Growth: Evidence from the Great Hanshin-Awaji (Kobe) Earthquake. RIETI - The Impacts of Natural Disasters on Plants' Growth: Evidence from the Great Hanshin-Awaji (Kobe) Earthquake. Retrieved April 30, 2014, from http://www.rieti.go.jp/en/publications/sum

Bingham, S., Gartenberg, E., Kernohan, A., & Pettit, N. (2005, October 10). What Type Of Music Best Stimulates Plant Growth? Draft 1. What Type Of Music Best Stimulates Plant Growth? Draft 1. Retrieved April 30, 2014, from http://jrscience.wcp.muohio.edu/nsfall05/labpacketArticles/WhatTypeOfMusicBestStimul.html

Do plants respond to vibration - Advanced Growing Techniques. (n.d.). Tokers QA RSS. Retrieved April 30, 2014, from http://forum.grasscity.com/advanced-growing-techniques/1169212-do-plants-respond-vibration.html

Does music have any effect on plant growth?. (2009, March 9). UCSB Science Line sqtest. Retrieved April 30, 2014, from http://scienceline.ucsb.edu/getkey.php?key=1495

Effect of music on plant growth. (2013, August 17). Science Fair Projects. Retrieved April 30, 2014, from http://www.all-science-fair-projects.com/print_project_1301_143

Qin, Y. C., Lee, W. C., Choi, C., & Kim, T. W. (2003, December 5). Biochemical and physiological changes in plants as a result of different sonic exposures. Mendeley. Retrieved April 30, 2014, from http://www.mendeley.com/research/biochemical-physiological-changes-plants-result-different-sonic-exposures/

Sonntag, K. (n.d.). Plant Reaction to Music. GardenGuides. Retrieved April 30, 2014, from http://www.gardenguides.com/79189-plant-reaction-music.html

Suits, B. (1998, June 20). Frequencies of Musical Notes, A4 = 440 Hz. Frequencies of Musical Notes, A4 = 440 Hz. Retrieved April 30, 2014, from http://www.phy.mtu.edu/~suits/notefreqs.

Vibrations Surround Us: The Science of Music. (2013, July 19). Dartmouth Undergraduate Journal of Science. Retrieved April 30, 2014, from http://mobile.dudamobile.com/site/dujs_dartmouth?url=http%3A%2F%2Fdujs.dartmouth.edu%2Ffall-2010%2Fvibrations-surround-us-the-science-of-music&dm_redirected=true#2795
The
End

By Nomi Kligler
Full transcript