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Improvement of Growth and Morphology of Vegetable Seedlings with Supplemental Far-Red Enriched LED Lights in a Plant Factory
- Source :
- Horticulturae, Volume 6, Issue 4, Horticulturae, Vol 6, Iss 109, p 109 (2020)
- Publication Year :
- 2020
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2020.
-
Abstract
- Although light-emitting diode (LED) lamps have been broadly applied in horticultural production to improve plant yield and quality, compared to natural light there is a disadvantage in the lack of far-red light in the LED spectrum. Far-red light has been studied widely to control plant growth and development. Therefore, this study aimed to find the effect of supplemental far-red-enriched LED lights to control the growth of tomato, red pepper, cucumber, gourd, watermelon and bottle gourd seedlings. The treatments were cool white LED:far-red LED at ratios of 5:0, 5:1, 5:2 and 5:3. The growth of tomato and red pepper seedlings, including hypocotyl length, was correlated to far-red light and light intensity. The phytochrome photostationary state (PSS) value of maximum hypocotyl length by supplemental far-red-enriched light ranged from 0.69 to 0.77 in tomato and red pepper seedlings. Although hypocotyl lengths of cucumber and watermelon were greatly affected by PSS, the PSS value for maximum hypocotyl length was lower than for tomato and red pepper. These results show that manipulating supplemental far-red enrichment can be used to control vegetable seedling growth with some variation among plant species.
- Subjects :
- 0106 biological sciences
Plant Science
lcsh:Plant culture
Horticulture
seedling
01 natural sciences
Hypocotyl
03 medical and health sciences
hypocotyl length
Pepper
far-red-enriched light
lcsh:SB1-1110
030304 developmental biology
0303 health sciences
biology
Phytochrome
LED
Plant factory
Far-red
biology.organism_classification
phytochrome photostationary state
Light intensity
Seedling
Gourd
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 23117524
- Database :
- OpenAIRE
- Journal :
- Horticulturae
- Accession number :
- edsair.doi.dedup.....8dbd62ef13e878e8773f62e7c507984c
- Full Text :
- https://doi.org/10.3390/horticulturae6040109