Plant Pillow Preparation for the Veggie Plant Growth System on the International Space Station
, , , und | 20. Juli 2020
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Article Category: Research Article
Online veröffentlicht: 20. Juli 2020
Seitenbereich: 24 - 34
DOI: https://doi.org/10.2478/gsr-2017-0002
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© 2017 Gioia D. Massa et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Figure 1
Figure 2
Figure 3
Percentages of germination and microbial contamination in preliminary lettuce seed tests of fuming surface sterilization methods. Tests were conducted with ‘Waldmann's Green’ lettuce seeds that had microbial contamination. Germination was tested immediately and following 1 month of storage for promising treatments.
| Bleach alone-12 h | 96% | 100% | - |
| Bleach+1 mL HCL-20 h | 0% | 0% | - |
| Bleach+0.5 mL HCL-1h | 100% | 0% | 92% |
| Bleach+1 mL HCL-1h | 100% | 0% | 4% |
| Untreated | 96% – 100 % | 100% | 95% |
Percentages of seeds germinating in the VEG-01 and VEG-03 tests. Each value represents a percentage of the 12 seeds planted in 6 pillows.
| VEG-01A | ‘Outredgeous’ lettuce | 75 | 100 |
| VEG-01B | ‘Outredgeous’ lettuce | 67 | 75 |
| VEG-01C | ‘Profusion’ zinnia | 100 | 92 |
| VEG-03A | ‘Outredgeous’ lettuce | 92 | 92 |
| VEG-03B | ‘Tokyo Bekana’ Chinese cabbage | 92 | 100 |
| VEG-03C | ‘Tokyo Bekana’ Chinese cabbage | 92 | 100 |
Percentages of germination (G) and contamination (C) observed for Veggie candidate flight seeds tested with different surface sterilization treatments. Dashes indicate that these tests were not performed. Values in bold indicate methods selected for flight seeds.
| Bleach + 0.5 mL | 80–100% | 0% | 70% | 40% | ||||
| Bleach + 1 mL | 80% | 0% | 70% | 60% | - | - | 100% | 0% |
| Bleach + 0.5 mL | 30% | 0% | 10% | 0% | - | - | - | - |
| 70% EtOH – 5 min | 30% | 60% | 80–100% | 20–40% | 100% | 100% | ||
| 70% EtOH – 10 min | - | - | - | - | - | - | 92% | 20% |
| Untreated | 67–100% | 20–40% | 60–100% | 100% | 90–100% | 20–80% | 100% | 100% |