Effect of colored light on grass By Jacob Lucynski and Colby Geisler

How does color of light affect plant growth?

Bermuda grass can grow up to 1-2 inches and can survive drought and salt. Blue Light allows leaf growth and when combined with red light allows flowering.

Hypothesis:

If we use film to color the light, then Bermuda grass will grow slower it's not normal light

Procedure

  • Obtain two samples of bermuda grass
  • place blue film over experimental group
  • water both with 5 fluid ounces each day
  • measure height each day in 5 days

Results

over the course of the experiment, the plant with normal colored light grew at an average rate of .175 inches each day. The height of plant with blue colored light, However, grew at an average rate of .275 inches each day

conclusion

We reject the hypothesis that the grass would grow slower because the grass under blue colored light actually grew at a 10% faster average rate than the one that didn't. We could've added another sample with red film. We didn't measure when it was under as the one under blue film may have grew out first. The film might have not entirely covered the grass

works cited

Credits:

Created with images by Dru Bloomfield - At Home in Scottsdale - "Tender Winter Grass"

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