The effect of competition on plant growth'

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The effect of competition on plant growth.

• Rodrigo I
• Science 7 G
• Ms. Priscila
• EAB -20/03/06

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Abstract

• The purpose of this experiment is to show how
  competition affects plant growth. If I put three
  seeds in cup A and fifteen seeds in cup B, then
  the seeds in cup A will grow, develop and get
  more nutrients since there is almost no
  competition there, while the seeds in cup B will
  grow and develop less because there is a lot of
  competition occurring between the seeds. For this
  experiment to be accurate I will follow a
  procedure.
• Continue...

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Abstract

• First I will fill 2/3 of two cups with soil. Then
  in one cup (cup A) I will plant three seeds, and
  in the other cup (cup B) I will plant fifteen
  seeds. After that I will moisten the soil daily
  and I will observe how they grow and develop for
  over two weeks. After all those steps I will
  analyze my data and draw a conclusion to whether
  or not competition affects plant growth. For this
  experiment I will do a research and field test. I
  will record the data by observing changes that
  might occur in the development of the seeds in
  both cups and how they are affected by the amount
  of competition in each cup. I will observe the
  plants daily between 6am and 7pm.

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Background

• Research says that the competition of plants
  begins below the ground (underground) and
  proceeds above the ground. Research also says
  that the competition between plants affect its
  growth and productivity. It says that above the
  ground productivity does not affect how plants
  compete below the ground. The competition below
  the ground will always be greater than the
  competition above the ground. The plants that
  have more competitors will have a decrease in
  their development compared to plants that have
  fewer competitors. Plant competition is usually
  greater among plants from the same/similar
  species since they require mostly the same
  resources to survive.

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Purpose

• The purpose of this experiment is to see how
  competition affects plant growth.

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Hypothesis

• If I plant three seeds in cup A and fifteen seeds
  in cup B, then the seeds in cup A will grow, and
  develop more than the seeds in cup B, because
  there is a lot of competition occurring between
  the seeds in cup B. While in cup A there are few
  seeds and the competition is less between them so
  they get more nutrients.

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Procedure

• The procedure for this experiment is the
  following
• Gather materials.
• Form a hypothesis.
• Read over procedure and follow instructions
  attentively.
• Fill each cup 2/3 full of soil.
• Plant seeds on cup A Three seeds, cup B Fifteen
  seeds. Continue

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Procedure

• 6. Moisten soil daily.
• 7. Label cups.
• 8. Observe daily for two weeks.
• 9. Analyze results.
• 10. Draw a conclusion.

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The End