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Statistical analysis of environmental variability within the celss breadboard project's biomass production chamber
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Stutte, G. W. Chetirkin, P. V. Fortson, R. E. Mackowiak, C. L. |
| Copyright Year | 1993 |
| Description | Variability in the aerial and root environments of NASA's Breadboard Project's Biomass Production Chamber (BPC) was determined. Data from two lettuce and two potato growouts were utilized. One growout of each crop was conducted prior to separating the upper and lower chambers; the other was subsequent to separation. There were little or no differences in pH, EC, or solution temperature between the upper and lower chamber or within a chamber. Variation in the aerial environment within a chamber was two to three times greater than variation between chambers for air temperature, relative humidity, and PPF. High variability in air velocity, relative to tray position, was observed. Separating the BPC had no effect on PPF, air velocity, solution temperature, pH, or EC. Separation reduced the gradient in air temperature and relative humidity between the upper and lower chambers, but increased the variability within a chamber. Variation between upper and lower chambers was within 5 percent of environmental set-points and of little or no physiological significance. In contrast, the variability within a chamber limits the capability of the BPC to generate statistically reliable data from individual tray treatments at this time. |
| File Size | 1179160 |
| Page Count | 42 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940006786 |
| Archival Resource Key | ark:/13960/t45q9v591 |
| Language | English |
| Publisher Date | 1993-02-01 |
| Access Restriction | Open |
| Subject Keyword | Man/system Technology And Life Support Statistical Analysis Vegetables Potatoes Variability Farm Crops Biomass Heat of Solution Atmospheric Temperature Closed Ecological Systems Humidity Phytotrons Environmental Monitoring Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
