Abstract

Rapid development towards higher effects and lower costs makes Light Emitting Diodes (LEDs) highly interesting for assimilation- and photoperiod-regulating lighting in greenhouse pot plant production. LED lighting is energy efficient and can deliver monochromatic light. This study examined the possibilities for using monochromatic light from LEDs for growth regulation. Possible benefits for plant morphology and quality and in reducing the need for chemical growth regulation were screened in three pot plant species (Euphorbia, Kalanchoe and Chrysanthemum). Monochromatic LED light at different wavelengths was given before daybreak. Plant development was continuously measured and plant quality was assessed at the end of the experiment. Our results indicate that light of certain wavelengths supplied before dawn can have a beneficial influence on the quality of common commercial pot plants. The practice of LED lighting holds great prospects for greenhouse pot plant production.

Keywords

light emitting diodes; photoperiod

Published in

Acta Horticulturae
2011, Volume: 893, number: 893, pages: 269-274
Title: Proceedings of the International Symposium on High Technology for Greenhouse Systems : GreenSys2009 : Québec city, Canada, June 14-19, 2009
ISBN: 978-90-66050-47-1
Publisher: International Society for Horticultural Science

Conference

International Symposium on High Technology for Greenhouse Systems: GreenSys2009

SLU Authors

• Bergstrand, Karl-Johan

  • Horticulture, Swedish University of Agricultural Sciences
    

• Schüssler, Hartmut

  • Horticulture, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Horticulture


Publication identifier

DOI: https://doi.org/10.17660/ActaHortic.2011.893.21

Permanent link to this page (URI)

https://res.slu.se/id/publ/33937