Flexible Spectra Led Arrays for Sole Source Lighting and Growth Comparisons With Conventional High Pressure Discharge Lighting Using Arabidopsis Thaliana

Norling, C.L.; Wiggins, Harvey; Crawford, Jenna; Wotton, A.W.M.

doi:10.17660/actahortic.2012.956.10

Cited by 2 publications

(1 citation statement)

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“…In strawberry, the beneficial effects of LED lighting on plant yield versus the conventional fluorescent lamps has been described by Yoshida et al (2012), mainly as a consequence of anticipated flowering and shortened vegetative growth period. Improved vegetative growth was also associated with LED lighting on tomato and cucumber (Hogewoning et al, 2012) and on Arabidopsis (Norling et al, 2012). Among LED treatments considered in the present study, yield was increased to a greater extent in plants grown under Led 0.7 (Table 2), confirming that the proper balancing of red and blue components of the light spectrum would be beneficial to plants (Hogewoning et al, 2012).…”

Section: Led Influence On Plant Growth and Yieldsupporting

confidence: 70%

Optimal red:blue ratio in led lighting for nutraceutical indoor horticulture

Piovene

Orsini

Bosi

et al. 2015

Scientia Horticulturae

152

103

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a b s t r a c tIn recent years, the interest toward the applicability of Light-Emitting Diode (LED) lights for indoor cultivation has significantly grown. The present work addressed the physiological and phytochemical plant responses to LED lights in indoor cultivation of leafy and fruit vegetable crops (namely sweet basil, Ocimum basilicum L.; and strawberry, Fragaria × Ananassa), with the final aim of improving both productivity and nutritional quality. Artificial light treatments were applied in a multi-sectorial growth chamber equipped with lamps with different light incidence and spectra (with red:blue ratio ranging 0.7-5.5). In all experiments, increased plant biomass, fruit yield and energy use efficiency (EUE) were associated to LED treatments, confirming the superiority of LED compared to the traditional fluorescent lamps. Interestingly, LED lighting enabled to increase antioxidant compounds and reduce nitrates content in basil leaves. A spectral red:blue ratio of 0.7 was necessary for proper plant development and improved nutraceutical properties in both crops.

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