| Life Support Concepts for Space Travel III Raymond M. Wheeler Biological Sciences Branch Kennedy Space Center, FL |
| What Will it Take to Grow Plants on Mars ? |
| Slide 3 |
| Direct Solar Radiation Options |
| Crop Yield vs. Light |
| Slide 6 |
| Slide 7 |
| Slide 8 |
| Slide 9 |
| Slide 10 |
| Slide 11 |
| Slide 12 |
| Slide 13 |
| Slide 14 |
| Can Plants be Grown at Low Pressure ? |
| Mars Deployable Greenhouse ? |
| Water Evaporation Rates vs. Pressure |
| Dissolved Oxygen vs. Pressure (pO2) |
| A Minimum Atmosphere for
Mars Greenhouses |
| Human Tending of Low Pressure Gardens |
| Psychological Contributions of Plants |
| Current Testing for Spaceflight |
| Spaceflight Chambers for Plant Tests |
| Slide 24 |
| Targets for Plant-Related Life Support Applications |
| Role of Bioregenerative
Components for Future Missions |
| More Testing is Needed ! |
| A Priestley Experiment on Mars ? ! |