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Proceedings Paper

High-power LEDs influence on germination rate of tomato seeds
Author(s): Cătălina Tudora; M. Ristici; Esofina Ristici
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Paper Abstract

Artificial lighting for plants cultivation is an important factor that can determine the nutritional quality of vegetables. The improvement of quality is determined by the emission spectrum of LED, suitable for vegetables. This spectrum values must be inside the solar ones. So, by using red high-power LEDs we can supplement the conventional lighting (ex. HPS) and we can enrich the red light from the emission light. We have used a special device that has 200 high-power red LEDs, having emission wavelength in 640-670 nm range, which is presented below. Using red LEDs on tomato seeds, we can observe that the germination rate significantly increased.

Paper Details

Date Published: 1 August 2007
PDF: 5 pages
Proc. SPIE 6785, ROMOPTO 2006: Eighth Conference on Optics, 67851N (1 August 2007); doi: 10.1117/12.757881
Show Author Affiliations
Cătălina Tudora, National Institute of R&D for Biological Sciences INCDSB (Romania)
M. Ristici, S.C. 4R OPTICS (Romania)
Esofina Ristici, S.C. 4R OPTICS (Romania)

Published in SPIE Proceedings Vol. 6785:
ROMOPTO 2006: Eighth Conference on Optics

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