Preliminary species and media selection for the Veggie space hardware.

Gioia D Massa, Gerard Newsham, Mary E Hummerick, Janicce L Caro, Gary W Stutte, Robert C Morrow, Raymond M Wheeler


Plants will be an important component of off-Earth life support systems for food production and atmosphere recycling. Veggie is a small vegetable production unit designed for space flight, with a passive water delivery system. Plants can be grown in Veggie using pillows, small bags with a wicking surface containing media and fertilizer. Pillows planted with seeds can be placed on the wicking surface of the Veggie reservoir and water will wick throughout the media. Multiple small salad and herb species were grown under Veggie analog conditions in pillows using both commercial peat-based media and arcillite. Biometric measurements and microbial loads were assessed. Growth varied, and some species grew better in a particular media but no general trends were apparent. Subsequent tests were conducted with lettuce using additional growing media. Lettuce plants grew best in the blends of the peat-based and arcillite media. Microbial counts were lower on plants grown in arcillite. Four media types (peat-based mix, arcillite, and blends of the two) were tested with in the rooting pillows; tests included Chinese cabbage, Swiss chard, lettuce, snow pea, and radish. Most species grew best in blends of the commercial mix and arcillite. Edible biomass production varied from 3.5-8 grams dry mass/m2/day with lettuce lowest and Chinese cabbage highest. Radish plants showed an increasing percentage of partitioning to edible roots with increasing arcillite in the media. Pillows appear to offer a simple, effective strategy for containing rooting media and avoiding free water while growing plants in the Veggie hardware.


Berkovich, Y.A., Tynes, G.K., Norikane, J.H., Levine, H.G. 2002. Evaluation of an ebb and flow nutrient delivery technique applicable to growing plants in microgravity. Soc. Auto. Eng. Tech. Paper No. 2002-1-2383

Bingham, G.E., Jones, S.B., Pololsky, I.G., Yendler, B.S. 1996. Porous substrate water relations observed during the Greenhouse-2 flight experiment. Soc. Auto. Eng. Tech. Paper No. 961547

Brown, C.S., Cox, W.M., Dreschel, T.D., Chetirkin, P.V. 1992. The vacuum-operated nutrient-delivery system: Hydroponics for microgravity. HortScience 27:1183-1185

Dreschel, T.W., Brown, C.S., Piastuch, W.C., Hinkle, C.R., Knott, W.M. 1994. Porous tube plant nutrient delivery system development: a device for nutrient delivery in microgravity. Adv. Space Res. 14:47-51

Goins, G.D., Carr, J.D., Levine, H.G., Wheeler, R.M., Mackowiak, C.L., Ming, D.W. 1997. Comparison studies of candidate nutrient delivery systems for plant cultivation in space. Soc. Auto. Eng. Tech. Paper No. 972304

Goins, G.D., Yorio, N.C., Stutte, G.W., Wheeler, R.M., Sager, J.C. 2003. Baseline environmental testing of candidate salad crops with horticultural approaches and constraints typical of spaceflight. Soc. Auto. Eng. Tech. Paper No. 2003-01-2481

Hanford, A.J. 2004. Advanced life support baseline values and assumptions document. NASA CR-2004-208941, JSC, p. 96

Johnston, L.M., Jaykus, L., Moll, D., Martinez, M.C., Anciso, J., Mora, B., Moe, C.L. 2005. A field study of the microbiological quality of fresh produce. J. Food Prot. 68: 1840-1847

Jones, S.B., Or, D., Bingham, G.E., Morrow, R.C. 2002. ORZS: optimization of root zone substrates for microgravity. Soc. Auto. Eng. Tech. Paper No. 2002-01-2380

Koontz, H.V., Prince, R.P., Berry, W.L. 1990. A porous stainless steel membrane system for extraterrestrial crop production. HortScience 25:707

Kliss, M., Heyenga, A.G., Hoehn, A., Stodieck, L.S. 2000. Recent advances in technologies required for a “Salad Machine”. Adv. Space Res. 26(2):263-269

Kliss, M., MacElroy, R.D. 1990. Salad machine: A vegetable production unit for long duration space missions. Soc. Auto. Eng. Tech. Paper No. 901280

Lindow, S.E., Brandl, M.T. 2003. Microbiology of the phyllosphere. Appl. Environ. Microbiol. 69:1875-1883

Morrow, R.C., Bula, R.J., Tibbitts, T.W., Dinauer, W.R. 1992. A matrix-based porous tube water and nutrient delivery system. Soc. Auto. Eng. Tech. Paper No. 921390

Morrow, R.C., Remiker, R.W. 2009. A deployable salad crop production system for lunar habitats. Soc. Auto. Eng. Tech. Paper No. 2009-01-2382

Morrow, R.C., Remiker, R.W., Mischnick, M.J., Tuominen, L.K., Lee, M.C., Crabb, T.M. 2005. A low equivalent system mass plant growth unit for space exploration. Soc. Auto. Eng. Tech. Paper No. 2005-01-2843

Motulsky, H.J. 2003. Prism®4 Statistics Guide-Statistical analyses for laboratory and clinical researchers. GraphPad Software Inc., San Diego CA

Norikane, J.H., Jones, S.B., Steinberg, S.L., Levine, H.G., Or, D. 2005. Porous media matric potential and water content measurements during parabolic flight. Habitation 10(2): 117-126

Perchonok M., Douglas, G. 2012. Risk factor of inadequate food system. Human health and performance risks of space exploration missions., accessed 05/08/2013

Porterfield, D.M. 2002. The biophysical limitation in physiological transport and exchange in plants grown in microgravity. J. Plant Growth Regul. 21:177-190

Richards, J.T., Edney, S.L., Yorio, N.C., Stutte, G.W., Wheeler, R.M. 2006. Yields of salad crops grown under potential lunar or Mars habitat environments: effect of temperature and lighting intensities. Soc. Auto. Eng. Tech. Paper No. 2006-01-2029

Ruiz, B.G., Vargas, R.G., Garcia-Villanova, R. 1987. Contamination on fresh vegetables during cultivation and marketing. Int. J. Food Microbiol. 4:285-291

Stutte, G.W., Monje, O., Yorio, N.C., Edney, S.L., Newsham, G., Connole, L., Wheeler, R.M. 2009. Sustained salad crop production requirements for lunar surface. Soc. Auto. Eng. Tech. Paper No. 2009-01-2381

Stutte, G.W., Newsham, G., Morrow, R.C., Wheeler, R.M. 2011a. Concept for sustained plant production on ISS using VEGGIE capillary mat rooting system. AIAA Tech. Paper No. 2011-5263

Stutte, G.W., Newsham, G., Morrow, R.C., Wheeler, R.M. 2011b. Operational evaluation of VEGGIE food production system in the habitat demonstration unit. AIAA Tech. Paper No. 2011-5262

Wheeler, R.M., Mackowiak, C.L., Stutte, G.S., Yorio, N.C., Ruffe, L.M., Sager, J.C., Prince, R.P., Peterson, B.V., Goins, G.D., Berry, W.L., Hinkle, C.R., Knott, W.M. 2003. Crop production for advanced life support systems. Observations from the Kennedy Space Center breadboard project. NASA Tech. Mem. 2003-211184

Wheeler, R.M., Stutte, G.W., Subbarao, G.V., Yorio, N.C. 2001. Plant growth and human life support for space travel. In: M. Pessarakli (ed.), 2nd Edition. Handbook of Plant and Crop Physiology. Marcel Dekker Inc., New York, Pp. 925-941

Wheeler, R.M. Roadmaps and strategies for crop research for bioregenerative life support systems: a compilation of findings from NASA’s advanced life support meetings. 2009. NASA Tech. Mem. 2009-214768

Wright, B.D., Bausch, W.C., Knott, W.M. 1988. A hydroponic system for microgravity plant experiments. Trans. ASAE 31:440-446

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