High-power light-emitting diode based facility for plant cultivation

Tamulaitis, G; Duchovskis, P; Bliznikas, Z; Breive, K; Ulinskaite, R; Brazaityte, A; Novičkovas, A; Žukauskas, A.

doi:10.1088/0022-3727/38/17/020

Cited by 22 publications

(22 citation statements)

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“…Compared to conventional fluorescent lamps, LEDbased illuminators have improved features, including smaller mass and volume, longer lifetime, and tailored spectrum [2,3]. Thus, LED-based illuminators provide an alternative to fluorescent lamps as a light source with controllable spectrum that can be used for plant cultivation [4,5]. Investigation of the effect of illumination PFD and spectrum on plant growth in vitro has been carried out by applying LED-based illumination to few species of plants.…”

Section: Introductionmentioning

confidence: 99%

In vitro culture of Chrysanthemum plantlets using light-emitting diodes

Kurilčik¹,

Miklušytė-Čanova

Dapkūnienė

et al. 2008

Open Life Sciences

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Effects of illumination spectrum on the morphogenesis of chrysanthemum plantlets (Chrysanthemum morifolium Ramat. 'Ellen') grown in vitro were studied using an illumination system consisting of four groups of light-emitting diodes (LEDs) in the following spectral regions: blue (450nm), red (640nm), red (660nm), and far-red (735nm). Taking into account all differences in shoot height, root length, and fresh and dry weight (FW and DW, respectively), observed while changing the total photon flux density (PFD), the optimal total PFD for growth of chrysanthemum plantlets in vitro was estimated. For 16 h photoperiod and typical fractions of the spectral components (14%, 50%, 28%, and 8%, respectively), the optimal total PFD was found to be 40 µmol m -2 s -1. Our study shows that the blue component in the illumination spectrum inhibits the plantlet extension and formation of roots and simultaneously increases the DW to FW ratio and content of photosynthetic pigments. We demonstrate photomorphogenetic effects in the blue region and its interaction with the fractional PFD of the far-red spectral component. Under constant fractional PFD of the blue component, the root number, length of roots and stems, and fresh weight of the plantlets have a correlated nonmonotonous dependence on the fractional PFD of the far-red component.

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Section: Introductionmentioning

confidence: 99%

In vitro culture of Chrysanthemum plantlets using light-emitting diodes

Kurilčik¹,

Miklušytė-Čanova

Dapkūnienė

et al. 2008

Open Life Sciences

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“…Then evocation, flower initiation and differentiation processes were investigated under illumination with the photoperiod of 16 hour and +21/172C day/night temperatures maintained for one month. The originally designed (Tamulaitis et al, 2005) (Gavrilenko and Zigalova, 2003). The spectrum of photosynthetic pigments was measured at 440.5 nm, 662 nm and 644 nm respectively.…”

Section: The Control Of Morphogenesis and Photophysiological Processementioning

confidence: 99%

Interaction Between Flowering Initiation and Photosynthesis

Samuolienė¹,

Duchovskis²

2012

Applied Photosynthesis

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“…A lot of experiments with LED have been conducted under a controlled environment with artificial light only (e.g., Avercheva et al, 2009;Brown et al, 1995;Goins et al, 1997;Kim et al, 2004;Ménard et al, 2006;Tamulaitis et al, 2005). However, only a limited number of studies under greenhouse environment with supplemental LED have been carried out (e.g., Pinho, 2007;van Ieperen and Trouwborst, 2008).…”

Section: Light Emitting Diodesmentioning

confidence: 99%

Use of Natural and Artificial Light in Horticulture - Interaction of Plant and Technology

Hemming¹

2011

Acta Hortic.

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In intensive horticultural cultivation natural light levels often limit crop production during several periods. For an optimum plant production and product quality light intensity, spectrum and photoperiod have to be adapted to the needs of the crops at every moment. Light has to be optimised together with all other growth factors like temperature, humidity and CO 2 . For a sustainable greenhouse production the use of freely available sunlight has to be preferred. New transparent greenhouse covering materials, like ETFE, glass with new anti-reflection coatings or materials with micro-surface structures, transmit a very high amount of light into the greenhouse. Other new materials are able to scatter the incoming light and make it diffuse. Diffuse light penetrates deeper into the canopy, increases light interception by the crop, influences micro-climate and increases crop production by 6.5-9.2% in The Netherlands, the potential in lower latitudes is even higher. Other materials manipulate light spectrum. Photoselective nettings have been developed in different colours influencing morphogenesis and crop production. Fluorescent plastic films combine effects on morphogenesis with high light transmission, especially important for higher latitudes. When sunlight is optimized it can still be necessary to add artificial light to ensure a year-round supply of horticultural products. There is still room for improving the crop energy efficiency under artificial lighting by changing duration and intensity of lighting, different growing systems and plant densities. Since artificial lighting requires a high amount of energy, new artificial lighting systems have been developed, such as interlighting and light emitting diodes (LED). LED give the possibility for true light spectrum control in the future. The (partial) replacement of HPS lamps by LED systems is currently under investigation in Dutch greenhouses. Integration in current growing systems has full attention. In order to reach a high sustainable and economic beneficial production the factor light has to be integrated and optimized within the total horticultural system.

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High-power light-emitting diode based facility for plant cultivation

Cited by 22 publications

References 0 publications

In vitro culture of Chrysanthemum plantlets using light-emitting diodes

In vitro culture of Chrysanthemum plantlets using light-emitting diodes

Interaction Between Flowering Initiation and Photosynthesis

Use of Natural and Artificial Light in Horticulture - Interaction of Plant and Technology

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