Side Lighting of Red, Blue and Green Spectral Combinations Altered the Growth, Yield and Quality of Lettuce (Lactuca sativa L. cv. “Yidali”) in Plant Factory
Ren Chen, Zhenwei Wang, Wenke Liu, Yuteng Ding, Qishuan Zhang, Shurong Wang, Gianluca Caruso · 2023
Read Side Lighting of Red, Blue and Green Spectral Combinations Altered the Growth, Yield and Quality of Lettuce (Lactuca sativa L. cv. “Yidali”) in Plant Factory by Ren Chen, Zhenwei Wang, Wenke Liu, Yuteng Ding, Qishuan Zhang, Shurong Wang, Gianluca Caruso (2023) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-10747435.txt.
Description
Ren Chen and co-authors published this horticulture study in 2023. Indoor plant factories usually light lettuce only from above, so lower and side leaves sit in shade and age early. The team added side lighting for two extra hours a day in the six days before harvest. They tested red, blue, mixed red-blue, and red-blue-green LED light against a no-side-light control in a hydroponic setup.
Side lighting of every color loosened the canopy and raised fresh weight. Shoot weight rose roughly a fifth to a third depending on the color mix. Blue light stood out for nutrition: it raised chlorophyll, sugars, and starch in lower leaf layers while cutting nitrate. The full three-color mix boosted sugar in the top layer. Responses differed by leaf layer and plant position. The authors recommend side lighting to fix the edge effects of top-only lighting.
Catalog record
| CREATOR | Ren Chen, Zhenwei Wang, Wenke Liu, Yuteng Ding, Qishuan Zhang, Shurong Wang, Gianluca Caruso |
|---|---|
| YEAR | 2023 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 46 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |