Does the type of sound surrounding the plant affect plant growth?

For this experiment, I played two genres of music to two different plants, and kept another plant in an area with general everyday noise, and had a control plant for 18 days, to test how different types of sound affect plant growth.
Tarunya Maheshkumaran
Grade 8

Hypothesis

HYPOTHESIS

I think that the plant to which I played classical music would grow larger, and be more healthy, since the soundwaves from classical or slow music would be smaller than the soundwaves from faster and louder music, and the plant which recieves daily noises, such as tv sounds and talking, will grow in an average way.

 

Research

I recently read an article that mentioned how the sound frequencies of different music genres affect plants' growth and health, and I wanted to test this theory. The article briefly described how the sound frequencies of different genres of music stimulate the plant’s “mechanoreceptors”, which are stimuli located in the plasma membrane of a plant cell, and react more positively when calmer sound frequencies are played. If plant mechanoreceptors work similarly to human mechanoreceptors, which differentiate the similar frequencies by the force that the soundwaves strike the ear, then plants could react to the changes in soundwaves, which is also why scientists say that talking to a plant could help it grow

Variables

My manipulated variable is the type of sound that i let the plant hear, since for one plant i play classical music, for another i play metal music, one i keep in a normally noisy area, and the final control variable plant.

My responding variable is the growth and health of the plants, since they respond according to the manipulated variable.

My controlled variables are the sunlight for the plants, how much i water the plants, and the type of pot they are in. [I also have a control plant so that my results would be more accurate.

Procedure

For my experiment, I planted four spider plants in four pots, and played classical and calming music for one, louder and more rock music for another, no music for the third, for a control variable, and placed the last plant in a generally loud and normal noisy area to see how plants respond to the noises of a normal day. Then, I waited for around 20 days to check for results, since spider plants can sprout within 20 days of planting. In plants, the mechanoreceptors react depending on how hard the wavelengths of the sound hits them, so if a loud frequency music is played, then the mechanoreceptors would react negatively, since the force of the wavelength damages the mechanoreceptor slightly.

 

Observations

I noticed how the plant to which I played more heavy and loud music had a lower growth rate than my control and the plant i played calming music to. For the plant that was placed in a noisy area, the plant didn't grow as well as the calming music plant, but grew better than the plant to which i played heavy metal music to. The leaves on the control plant were normal, and green, but slightly brown; the leaves for my calming music plant were extremely green, and were really healthy; the leaves of my heavy metal plant were brown, with slight hints of green, and looked like the plant was dying; the leaves of my normal sound plant were slightly brown and slightly green, mostly a mix of both.

Analysis

My hypothesis was correct because the plant exposed to calming music showed healthier growth with greener leaves. On the other hand, the plant exposed to heavy metal music showed signs of wilting, with green leaves that had some wilt. While the control plant grew decently, it did not grow as well as the calming music plant. Also, the plant placed in a place with everyday sounds didn't grow as well as the ones with calming music but grew better than the heavy metal plant. These results show the significant impact of stimuli on plant health and growth. The experiment demonstrates that the type of music played can influence plant health and shows the importance of providing plants with a calming and more responsive environment for better growth and health of plants.

Conclusion

In summary, the experiment showed that plants like calm music. They grew better with it, having nice green leaves. But when they listened to heavy metal music, they looked unhappy, with brown, sickly leaves. Even the plant in a normal noisy place didn't do as well as the calm music ones, but it did better than the heavy metal-exposed plant.

So, it seems that music affects how plants grow. Calm tunes are good for them, while loud music isn't. This tells us that we should give plants a peaceful environment to help them grow well.

Application

This experiment shows that the sounds around plants affect how well they grow. Calming music helps them thrive, while loud music can make them stressed and unhealthy. In real life, this means we should create peaceful environments for plants to help them grow better. It also reminds us that plants are living things that respond to their surroundings, so we need to consider more than just water and sunlight when taking care of them.

Sources Of Error

Some potential sources of error in this experiment include:

1. Variability in plant health.
2. Inconsistent exposure to music.
3. Environmental factors like temperature and light.
4. Differences in potting soil.
5. Variations in plant placement.
6. Human error in watering and data recording.
7. Short duration of the experiment.

The only source of error that i got was that my pot was too big, bu tthat wasn't much of an issue, and i had to place my plants on different sides of my house, so each one got sunlight at a different time, though they all got the same amount in the end.

Acknowledgement

Thank you to Capcut, since I found the background audio and i edited my video on Capcut. Also, thanks to my parents for letting me blast music and grow my plants :)