Spinach Growth and Development Under Innovative Narrow- and Broad-Spectrum Lighting Sources Dynamac Corporation, Kennedy Space Center

Format:

Conference/Event

Author/Creator:

Goins, Gregory D., author.

Conference Name:

International Conference On Environmental Systems (2000-07-10 : Toulouse, France)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

A primary challenge for supporting plants in space is to provide as much photosynthetically active radiation (PAR) as possible, while conserving electrical power. Light-emitting diodes (LEDs) and microwave lamps are innovative artificial lighting technologies with several appealing features for supporting plant growth in controlled environments. Because of their rugged design, small mass and volume, and narrow spectral output, red and blue LEDs are particularly suited for outfitting plant growth hardware in spaceflight systems. The sulfur-microwave electrode-less high-intensity discharge (HID) produces a bright broad-spectrum visible light at a higher electrical conversion efficiency than conventional light sources. Experiments compared the performance and productivity of spinach (Spinacia oleracea L.) grown under conventional lighting sources (high-pressure sodium and cool-white fluorescent lamps) with microwave lamps and various wavelengths of red LEDs. In terms of plant growth and development, experimental results showed that microwave lamps and LEDs were as effective in producing spinach biomass as conventional lamps

Notes:

Vendor supplied data

Publisher Number:

2000-01-2290

Access Restriction:

Restricted for use by site license