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Blackout Reduces Height of Easter Lily but End-of-day Red Light Treatment Using Light-emitting Diodes Does Not
Blackout Reduces Height of Easter Lily but End-of-day Red Light Treatment Using Light-emitting Diodes Does Not
- Source :
- HortTechnology, Vol 30, Iss 2, Pp 156-162 (2020)
- Publication Year :
- 2020
- Publisher :
- American Society for Horticultural Science, 2020.
-
Abstract
- One principle for reducing undesirable stem extension in greenhouse production is to counteract the decrease in red-to-far red ratio that occurs naturally during twilight periods. This study evaluated three lighting treatments on the morphology of easter lily (Lilium longiflorum): 1) a 1-hour end-of-day treatment providing 20 μmol·m−2·s−1 of monochromatic red light (EOD R), 2) blackout curtains closed 45 to 75 minutes before sunset and kept closed until 0 to 60 minutes after sunrise (BO), and 3) a control with natural twilight (CTRL). Plants under the BO treatment were 11% shorter than CTRL, while plants exposed to EOD R did not differ in height compared with BO or CTRL. There were no treatment effects on any other measured parameters, including aspects of flowering.
Details
- ISSN :
- 19437714 and 10630198
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- HortTechnology
- Accession number :
- edsair.doi.dedup.....8d9d71f4ffba62d0b4caea8a338ccca9
- Full Text :
- https://doi.org/10.21273/horttech04496-19