Effects of LED light spectra on lettuce growth and nutritional composition

T. Hytönen, P. Pinho, M. Rantanen, S. Kariluoto, A. Lampi, M. Edelmann, K. Kauste, K. Mouhu, V. Piironen, L. Halonen, P. Elomaa

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

4 Sitaatiot (Scopus)

Abstrakti

Year-round greenhouse production in northern latitudes depends on the use of artificial lighting. Light emitting diodes provide a promising means to save energy during cultivation as well as to modify the light spectrum to regulate the growth and quality of the crop. We compared the effects of light emitting diode lighting with different spectral compositions on the growth, development and nutritional quality of lettuce (Lactuca sativa L. ‘Frillice’). We show that warm-white and warm-white supplemented with blue spectra provide equal growth and product quality compared to conventional high-pressure sodium lighting in the absence and presence of daylight. Our data indicate that for biomass accumulation, the far-red component in the light spectrum is more critical than green light or the red/blue ratio. Furthermore, we demonstrate that a red + blue spectrum increases the concentration of several vitamins in lettuce. However, biomass accumulation using this spectrum was insufficient when daylight was excluded.
AlkuperäiskieliEnglanti
Sivut880–893
Sivumäärä14
JulkaisuLighting Research and Technology
Vuosikerta50
Numero6
Varhainen verkossa julkaisun päivämäärä28 maaliskuuta 2017
DOI - pysyväislinkit
TilaJulkaistu - 2018
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Sormenjälki Sukella tutkimusaiheisiin 'Effects of LED light spectra on lettuce growth and nutritional composition'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

  • Siteeraa tätä

    Hytönen, T., Pinho, P., Rantanen, M., Kariluoto, S., Lampi, A., Edelmann, M., ... Elomaa, P. (2018). Effects of LED light spectra on lettuce growth and nutritional composition. Lighting Research and Technology, 50(6), 880–893. https://doi.org/10.1177/1477153517701300