CO(2): Friend or Foe?

Overview

Objectives/Goals My goal is to help the greenhouse industry produce bettter and more fruit production. Methods/Materials 1. Commercial Greenhouse 2. 36 tomatoe plants 3. 2"X 10' PVC pipe 4.2 PVC end caps 5. 1 drill 6. 1 drill bit 7.two air blowers 8. one roll of duct tape 9. two cylinders of CO2 10. 2" X 6' hoses 11. Hand held CO2 meter 12. one pound reading scale 13. 2 CO2 flow regulators Results Sample C(which was control) had the best tomato fruit production at 4.29 lbs average. Sample A (1000-1100 ppm) did second best with 4.01 lbs average. Sample B (600-700) came in last with 3.96 lbs average. Conclusions/Discussion I found out that CO2 was not necessary in this perticular greenhouse environment. There was enough atmospheric CO2 coming in the greenhouse. In other greenhouse facilities it may be different. On a sunny day adding CO2 may help tomato fruit production, because the plants take in more CO2 on a sunny day because they need CO2 and sun to make photosynthsis and they need photosynthsis to live.

Competition history

• CSEF 2004 Plant Biology · Entry J1601

Resources

• CSEF project summary ↗

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