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Proceedings Paper

Influence of laser diode red beams on germination rate of tomato seeds
Author(s): P. Niculita; Silvana Danaila-Guidea; Oana Livadariu; M. Popa; M. Ristici; Esofina Ristici
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Paper Abstract

Laser diodes are lighting devices in which the light is generated by stimulated emission rather than spontaneous emission, with high generation efficiency. A device using 20 red laser diodes is presented. Emission wavelengths are in the 650-670 nm range. Emission power for each laser diode is about 4 mW. This device is used to irradiate the tomato seeds with three different irradiating doses. There were three Petri vessels for each dose having 25 seeds each of them. Results show that the germination rate increases for irradiated seeds. The red light has a positive effect for vegetable cultivated in protected area.

Paper Details

Date Published: 1 August 2007
PDF: 5 pages
Proc. SPIE 6785, ROMOPTO 2006: Eighth Conference on Optics, 67851M (1 August 2007); doi: 10.1117/12.757877
Show Author Affiliations
P. Niculita, USAMV (Romania)
Silvana Danaila-Guidea, USAMV (Romania)
Oana Livadariu, USAMV (Romania)
M. Popa, USAMV (Romania)
M. Ristici, 4ROPTICS (Romania)
Esofina Ristici, 4ROPTICS (Romania)


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

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