4. Discussion

x DISCUSSIONS
Analysis of results Key findings:


Key findings: From the data we collected, we found out clearly that music does affect plants. In the last Day, Jazz(5.1 cm) being the first in boosting the plant in growth of height, followed by dubstep(5 cm) and classical(4.7). In weight,  classical(1.6g) wins in boosting the plant’s growth in weight, followed by jazz(1.3g) and dubstep(0.5). Jazz was the first for height(5.1 cm) whereas classical (4.7 cm) came in the third losing to dubstep(5 cm). Both Jazz and dubstep have 2 leaves at the end of the experiment whereas classical had only one leaf. Dubstep did unexpectedly well. However, Classical (1.6 Grams) won both Jazz (1.3 Grams) and Dubstep (0.5 Grams) in mass. However, Jazz won Classical in both areas and the different between Classical and Jazz in mass were not very significant (Different on 0.3 Grams) and jazz beat Dubstep in two area(Height and mass) and same for number of leafs.   In the Data for the control plant, height is 3.6 cm while mass is o.4 grams and the number of leaves is 1.  For the increase in mass except for box D and E, the rest of the boxes have grown heavier than the control. For the increase in height, all the boxes have grown taller than the control. For the number of leaf box A and C both have more leaves than the control.  Hence, from this experiment, we can tell that music does affect the mass of the plant due to the difference between the classical results and the boxes with the music.


Explanation of key findings:
 Sound is a wave, and more specifically, a pulse wave. This simply means that it is formed by areas of higher and lower pressure in the atmosphere through which it travels. Terms such as "amplitude," when used in reference to sound, are actually referring to the plot of the air pressure versus time on a graph. Now, it is difficult to believe that such (extremely small) fluctuations in air pressure could have any effect on a plant's growth. Various researches have proved that plants respond to acoustic energy in profound ways. It increases their rate of growth, their size and influences their overall health. Dan Carlson, after a thorough research over a span of many years, had reached a conclusion that the medley of frequencies originating between 3,000 to 5,000 kHz helps the stomata of plants to open up quicker. This helps them absorb nutrients more efficiently.
 
In another similar experiment conducted by another team, After one week of experimenting, the following were the results. The one that was in the best condition was the plant that was in the room with classical music. The second best plant was the one in the room with no music and the one that didn't do so good was the one in the room with rock music. (http://www.miniscience.com/projects/plantmusic/)
Similar to their team, Our rock did not go so well and the control did better than it. And our classical did better than both of them.


Finding of hypothesis:


Evaluation of a hypothesis: Our hypothesis is that Classical music shall be most effective in the growth of plants.   We came up with our hypothesis as there are many experiments whether plants are affected by music and here are the reports:
Eugene Canby, a Canadian engineer, exposed wheat to J.S. Bach's violin sonata and observed an increase in yield by 66%. This further reinforced the works of Dr. T.C. Singh who had observed positive results from playing classical music to plants. (http://hubpages.com/hub/the-effect-of-music-on-plant-growth)
And Surprisingly, jazz tend to have a beneficial effect compared to rock or country music. It produces better and more abundant growth! MythBusters, a science entertainment TV program, did a similar experiment and concluded that the plant reacted well to any type of music whether rock, country, jazz or classical. Their experiments, however, were commented as not thoroughly conducted and highly debatable. (http://hubpages.com/hub/the-effect-of-music-on-plant-growth)
Hence, We are confused which type of music has a better effect on plants. But on the jazz experiment for the Mythbusters did not go that well so we finally, we chose Classical.
However, in the end, Jazz was top among all the music, whereas classical lost to Jazz in many areas. Jazz was the first for increase in height(5.1 cm) whereas classical (4.7 cm) came in the third losing to dubstep(5 cm). Both Jazz and dubstep have 2 leaves whereas classical had only one leaf. Dubstep did unexpectedly well. However, Classical (1.6 Grams) won both Jazz (1.3 Grams) and Dubstep (0.5 Grams) in mass. However, Jazz won Classical in both areas and the different between Classical and Jazz in mass were not very significant (Different on 0.3 Grams) and jazz beat Dubstep in two areas(Height and mass) and both have the same for number of leafs.  
Maybe our experiment and the mythbusters experiment on Jazz progress are not really similar. Maybe our plant’s experienced a different environment such as different temperatures, different amounts of light that affected the plants growth and different amounts of water that we gave to the plant that led to our different results. The rate of water evaporation is also different in both experiments . We also used cotton while the Mythbusters might have used soil to conduct their experiment. There are endless possibilities why our results are different.
Areas for improvement:
We could have extended our experiment timeline, hence giving us more results and data to confirm that our final result is accurate as working with a small number is not too accurate at times such as when the mass of the plants decrease(Possible because the mass of the plants is too insignificant that water evaporation takes away the mass).
We could also have paid more attention to our equipments as for the speaker, we did not realise that music cannot be played during charging when we brought it. Hence, we could only play the music for 6 hours. If we paid attention to it, there would be a more obvious growth in the plants. We also did not putting in much consideration on the setting up of the equipment as when we did it, we realised that we need a lot of plugs and during the setting up since some lamps did not work and during the experiment time, a lamp suddenly malfunctioned. Hence, we have to stop the entire experiment.
Thirdly, We should have proper time management. Due to the limited time and CCA and other activities, we rushed to complete our work on time. Hence, I think that if we can improve on time management, we would be able to produce better quality work.

No comments:

Post a Comment