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Seed-to-seed growth of superdwarf wheat and arabidopsis using red light-emitting diodes (LED's): A report on baseline tests conducted for NASA's proposed Plant Research Unit (PRU)To determine the influence of narrow-spectrum red light-emitting diodes (LED's) on plant growth and seed production, wheat (Triticum aestivum L.cv Superdwarf) and Arabidopsis (Arabidopsis thaliana (L.) Heynh, race Columbia) plants were grown under red LED's (peak emission 660 nm) and compared to plants grown under daylight fluorescent (white) light and red LED's supplemented with either 1 percent or 10 percent blue fluorescent (BF) light. Wheat growth under red LED's alone appeared normal, whereas Arabidopsis under red LED's alone developed curled leaf margins and a spiraling growth pattern. Both wheat and Arabidopsis under red LED's alone or red LED's + 1 percent BF light had significantly lower seed yield than plants grown under white light. However, the addition of 10 percent BF light to red LED's partially alleviated the adverse effect of red LED's on yield. Irrespective of the light treatment, viable seeds were produced by wheat(75-92 percent germination rate) and Arabidopsis (85-100 percent germination rate). These results indicate that wheat, and to a lesser extent Arabidopsis, can be successfully grown under red LED's alone, but supplemental blue light is required with red LED's to sufficiently match the growth characteristics and seed yield associated with plants grown under white light.
Document ID
19960027434
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Goins, G. D. (Dynamac Corp. Cocoa Beach, FL United States)
Yorio, N. C. (Dynamac Corp. Cocoa Beach, FL United States)
Sanwo, M. M. (Dynamac Corp. Cocoa Beach, FL United States)
Brown, C. S. (Dynamac Corp. Cocoa Beach, FL United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1996
Subject Category
Life Sciences (General)
Report/Patent Number
NAS 1.15:111678
NASA-TM-111678
Accession Number
96N28826
Funding Number(s)
CONTRACT_GRANT: NAS10-12180
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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