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The Effect of Sunlight to the Growth Of Monggo Seeds

Investigatory Project Verification Presentation for Defense

haesyl anne khu

on 3 July 2013

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Transcript of The Effect of Sunlight to the Growth Of Monggo Seeds

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Day 5
An experiment was conducted to verify if the presence of sunlight could truly affect the growth of Monggo seeds. The group’s assumption was that if a Monggo seed set-up was exposed to sunlight adequately, then it will grow healthier than a Monggo seed set-up without exposure to sunlight. What the group did was make two set-ups: Set-up A (with exposure to sunlight) and Set-up B (without exposure to sunlight). The results show that Set-up A (with exposure to sunlight) grew much better than Set-up B (without exposure to sunlight). The results show that our hypothesis was indeed true.

One of the most widely-grown plants in the Philippines, and also the commonly used plant for experiments is
Vigna radiata
, popularly known worldwide as mung bean, or simply monggo in Filipino. It is a plant that has been domesticated in Mongolia, reason for why it is also called “monggo”. They are small in size, ovoid in shape, and green in color. It is used as a foodstuff in both savory and sweet dishes.

An experiment was conducted to verify if the presence of sunlight could truly affect the growth of monggo seeds. Based on general knowledge, the presence of sunlight is essential for the growth of plants. The researchers wanted to verify if this was true through the use of monggo seeds.

The objectives of this study are 1) to verify if the presence of sunlight truly affects the growth of monggo seeds, 2) to verify if darkness has an effect on the growth of monggo seeds. 3) to help plant growers on the factors that will help the growth of plants, such as sunlight, and 4) to spread information to people that although it is part of common sense to expose plants to sunlight, it is also a great consideration to be given importance to.

The past studies show that in order for the monggo seeds to grow, they will need to be provided with adequate exposure to sunlight, sufficient amount of water, plenty of nutrients from the soil, and air. In this study, one of the factors that affect the growth of monggo seeds is sunlight. Sunlight, however, is not really necessary or responsible for the germination of seeds, but generally, it is essential to plant growth. Germination, on the other hand, requires moisture and temperature. Although plants can be grown under artificial lights, for centuries, it is found that they survive and grow best when exposed to natural light or sunlight.
The materials which the researchers used were:

•2 regular sized plastic cups
•2 cups of loam soil
•50 healthy monggo seeds
•Tap water
•Measuring cup
•Large Shoebox
•Ice cream container
•Masking tape
•Pentel pen
•Cell phone camera
The steps that the researchers followed were:

1. Gather all the materials.

2. Soak monggo seeds in water and remove the floating ones, then drain out water.

3. Label one plastic cup with “Set-up A” (with sunlight) and the other plastic cup with “Set-up B” (without sunlight).

4. Cut 4 holes in the bottom of both plastic cups.

5. Put 1 cup of loam soil in both set-ups.

6. Randomly plant 25 healthy monggo seeds in each set-up and drizzle ¼ cup of tap water to it.

7. Place Set-up A outside where it can be exposed to the sunlight.

8. Place Set-up B inside the large shoebox indoors.

9. Only water both set-ups with ¼ cup of tap water once every other day.

10. Take pictures of both set-ups everyday for the documentation.

11. Keep track with the plant growth with written observations.


It was shown that monggo seeds grown under sunlight germinated and grew better than those grown under darkness. Evidence suggests that light really affects the growth of monggo seeds in terms of quantity and quality of the seeds that germinated. The same number of seeds was grown on set-up A and set-up B. Of the 25 seeds, 7 seedlings grew in set-up A, while, there were only 3 in set-up B. Leaves are green in set-up A, because the pigment in them called chlorophyll absorbs all light colors and reflects green light. The seedlings in set-up A were shorter but sturdier with developed leaves compared to the taller but thinner stems of set-up B. The seedlings of set-up B were taller because they were seeking sunlight.

The presence of sunlight enables the plant to produce food via photosynthesis, which is essential to plant growth.


Sunlight is very important to a plant’s growth. A plant cannot survive, reproduce, or produce food without sunlight. All plants will eventually die off if there was no light for them to use. The temperature from sunlight makes the seeds germinate and grow better.

Results show that the researchers’ hypothesis is significant because the monggo seeds grew into a fully developed plant with healthy green leaves.

Not only do plants need sunlight, all living organisms do.
Set-Up A
Set-Up B
Set-Up A
Set-Up B
Set-Up A
Set-Up B
Set-Up A
Set-Up B
Set-Up A
Set-Up B
Day 7

We would like to thank the people who helped us complete this Investigatory Project Verification. Without their guidance, we wouldn't be able to finish this with success.
We would like to thank Ma'am Joy Caracho for her unwavering support and enthusiastic approach to this activity. We thank our parents for their love and time. We also thank everyone else who helped our group. Most of all, we thank God for the wisdom and understanding that He gave us. Most importantly, we thank Him for the greatest gift of all, the gift of life.
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