The [Master] Debaters

1
The Master Debaters

• Brandon
• Dylan
• Mitch
• Taylen

2
Research Question

• If we cross breed a tall plant and short what
  will grow, a tall or a short plant? Is stem color
  a factor in short or tall plants?

3
Hypothesis

• We think that if we cross pollinate a short plant
  with a tall plant it will produce a tall plant.
  We think that a taller height is a dominant
  trait. When we Pollinate we are going to
  pollinate a purple stemmed plant with a green
  stemmed plant. We believe it will produce a
  purple stemmed plant

4
Growing Days

• We planted our Brassica plants on Feb. 25th We
  watered every day, they each grew about 3cm each
  day.

5
Type of Plants

• We grew Rapid Growing Brassica. We grew two
  types one was Mutant and the other was class.
• We used bee sticks to pollinate our plants. We
  took apart bees and glued them to toothpicks to
  make our bee sticks.

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Pictures
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Pictures (continued)
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Experimental Method/Design

• The way we set up this experiment was simple and
  easy. We planted 3-5 seeds in each pot, then we
  put them in little containers with a water
  reservoir underneath that. Then we watered them
  every weekday and fertilized every Friday.

9
Embryogenesis success rate

• Our plants embryogenesis success rate (seeds) was
  fairly good except for Brandons plants. Taylens
  produced 137 for the class data and 55 for the
  mutant data, Dylans produced 77 seeds for the
  class data and 61 for mutant data, Mitchs
  produced 99 class data and 20 mutant, Brandons
  produced 8 class and 22 mutant.

10
Experimental Method to Test Offspring

• The way we tested our offspring was with petri
  dishes. What we did was put two damp paper towels
  in round dishes, aligned 16 seeds in a square
  like pattern, and put water in a little dish,
  then we put the petri dishes in the dishes with
  the water at an angle and let them sit for 2 days
  and then they started to germinate.

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Seeds Produced
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Conclusion

• When Brandon and Dylan pollinated the class
  plants they produced tall green stemmed plants.
  The mutant plants produced tall and small green
  and purple stemmed plants.

• Taylen and Mitch pollinated their class plants
  and produced tall green stemmed plants. The
  mutant plants produced about ½ green and ½ purple
  plants.