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Open AccessArticle

Fittonia verschaffeltii Response to Artificial Light Treatments: BIOMASS, Nutrient Concentrations and Physiological Changes

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Agronomy Department of Higher Engineering School, University of Almeria, CIAIMBITAL, Agrifood Campus of International Excellence ceiA3. Ctra. Sacramento s/n, La Cañada de San Urbano, 04120 Almería, Spain
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Chemistry and Physics Department of Higher Engineering School, University of Almería, CIAIMBITAL, Agrifood Campus of International Excellence ceiA3, Ctra. Sacramento s/n, La Cañada de San Urbano, 04120 Almería, Spain
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Engineering Department of Higher Engineering School, University of Almería, CIAIMBITAL, Agrifood Campus of International Excellence ceiA3, Ctra. Sacramento s/n, La Cañada de San Urbano, 04120 Almería, Spain
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Author to whom correspondence should be addressed.
Agronomy 2020, 10(1), 126; https://doi.org/10.3390/agronomy10010126
Received: 1 December 2019 / Revised: 9 January 2020 / Accepted: 12 January 2020 / Published: 15 January 2020
(This article belongs to the Special Issue Control of LED Lighting Based on Plant Physiological Principles)
The purpose of the present study was to evaluate the effects of different light treatments on biomass, nutrient concentrations and physiological parameters of Fittonia verschaffeltii (Lem) Van Houtte. The aim was to establish a methodology to evaluate the effect of photosynthetically active radiation (PAR) emitted by lamps on biomass. The light treatments used were tube luminescent Dunn (TL-D), tube luminescent Dunn + light emitting diodes (LEDs) and Tube luminescent 5 (TL-5). At the end of the experimental period, biomass, nutritional, biochemical, and physiological parameters were assessed. A clear reduction in total plant dry weight under TL-D + LEDs at the end of the experiment was recorded. With respect to nutrient concentration in the different organs assessed, there was no clear response under the different light treatments. The growth under TL-D lamps resulted in the highest concentration of total soluble sugars and starch in leaves, whereas the highest value of indole 3-acetic acid concentration was under TL-5 lamps. Plants grown under TL-D + LEDs showed the lowest values of chlorophyll a, b and a + b. The relationship proposed between integrated use of spectral energy (IUSE) and total dry weight (TDW) showed a good correlation with an R2 value of 0.86, therefore we recommend this methodology to discern the effects of the different spectral qualities on plant biomass. View Full-Text
Keywords: carotenoids; chlorophyll; mineral composition; plant growth; proline; starch carotenoids; chlorophyll; mineral composition; plant growth; proline; starch
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García-Caparros, P.; Almansa, E.M.; Barbero, F.J.; Chica, R.M.; Lao, M.T. Fittonia verschaffeltii Response to Artificial Light Treatments: BIOMASS, Nutrient Concentrations and Physiological Changes. Agronomy 2020, 10, 126.

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