The Effects of Different Light Spectrums on the Growth and Mineral Nutrition of Hydroponically Grown Barley Grass (Hordeum vulgare L.)

Document Type : Original paper


Akdeniz University Vocational High School of Technical Sciences, Antalya-Turkey



Background and aim: The effects of different light spectrum on the growth and nutrient content of hydroponically grown Barley grass (Hordeum vulgare L.) in indoor climate conditions were studied. Materials and methods: In the experiment, under three different LED-based lightings defined by the peak wavelengths of red (625-675 nm), blue (425-475 nm), and green (490-550 nm) light and at a photosynthetic photon flux density of 200-250 μmol m−2 s. were studied. Plant biometric parameters and mineral nutrient concentration of Barley grass were determined. The highest height, fresh weight, dry matter ratio and plant yield per unit area in Barley grass were achieved by the combination of red, blue and green light wavelengths. Lower height and fresh weight values were obtained in the combination of blue and green light. Results: The highest concentrations of plant nutrients in terms of mineral contents are in combinations of red, blue and green light; and the highest N content was determined under blue light. Fe content of Barley grass was higher under blue light; Zn, Mn, Cu and B nutrients were determined higher under red light. Conclusion: The results showed that in indoor plant artificial lighting, selected light spectrums can be used to optimize plant growth and mineral nutrition.


[1]. Smith H. Physiological and ecological function within the phytochrome family. Annual review of plant biology. 1995;46(1):289-315.
[2]. Sancar A. Structure and function of DNA photolyase and cryptochrome blue-light photoreceptors. Chemical reviews. 2003;103(6):2203-38.
[3]. Carvalho SD, Folta KM. Environmentally modified organisms–expanding genetic potential with light. Critical Reviews in Plant Sciences. 2014;33(6):486-508.
[4]. Li Q, Kubota C. Effects of supplemental light quality on growth and phytochemicals of baby leaf lettuce. Environmental and Experimental Botany. 2009;67(1):59-64.
[5]. Bugbee B. Toward an optimal spectral quality for plant growth and development: the importance of radiation capture. InVIII International Symposium on Light in Horticulture 1134 2016 (pp. 1-12).
[6]. Lefsrud MG, Kopsell DA, Sams CE. Irradiance from distinct wavelength light-emitting diodes affect secondary metabolites in kale. HortScience. 2008;43(7):2243-4.
[7]. Chen XL, Xue XZ, Guo WZ, Wang LC, Qiao XJ. Growth and nutritional properties of lettuce affected by mixed irradiation of white and supplemental light provided by light-emitting diode. Scientia Horticulturae. 2016;200:111-8.
[8]. Pinho P, Jokinen K, Halonen L. The influence of the LED light spectrum on the growth and nutrient uptake of hydroponically grown lettuce. Lighting Research & Technology. 2017;49(7):866-81.
[9]. Pocock T. Light-emitting diodes and the modulation of specialty crops: light sensing and signaling networks in plants. HortScience. 2015;50(9):1281-4.
[10]. ÇAĞLAYAN N, ERTEKİN C. Farklı Dalga Boylu LED Işıklarının Yeşil Yapraklı Bitkilerin Gelişimi Üzerindeki Etkileri. Tarım Makinaları Bilimi Dergisi. 2018;14(2):105-14.
[11]. ISO 11466 International Standard. Soil quality-extraction of trace elements soluble in aqua regia. 03-01, 1995.
[12]. Lin KH, Huang MY, Huang WD, Hsu MH, Yang ZW, Yang CM. The effects of red, blue, and white light-emitting diodes on the growth, development, and edible quality of hydroponically grown lettuce (Lactuca sativa L. var. capitata). Scientia Horticulturae. 2013;150:86-91.
[13]. Naznin MT, Lefsrud M, Gravel V, Hao X. Different ratios of red and blue LED light effects on coriander productivity and antioxidant properties. InVIII International Symposium on Light in Horticulture 1134 2016;(pp. 223-230).
[14]. Ohashi-Kaneko K, Takase M, Kon N, Fujiwara K, Kurata K. Effect of light quality on growth and vegetable quality in leaf lettuce, spinach and komatsuna. Environmental Control in Biology. 2007;45(3):189-98.
[15]. Li H, Tang C, Xu Z, Liu X, Han X. Effects of different light sources on the growth of nonheading Chinese cabbage (Brassica campestris L.). Journal of Agricultural Science. 2012;4(4):262.
[16]. Olle M, Viršile A. The effects of light-emitting diode lighting on greenhouse plant growthand quality. Agricultural and food science. 2013;22(2):223-34.
[17]. Johkan M, Shoji K, Goto F, Hahida SN, Yoshihara T. Effect of green light wavelength and intensity on photomorphogenesis and photosynthesis in Lactuca sativa. Environmental and Experimental Botany. 2012;75:128-33.
[18]. Son KH, Oh MM. Growth, photosynthetic and antioxidant parameters of two lettuce cultivars as affected by red, green, and blue light-emitting diodes. Horticulture, Environment, and Biotechnology. 2015;56(5):639-53.
[19]. Degni BF, Haba CT, Dibi WG, Soro D, Zoueu JT. Effect of light spectrum on growth, development, and mineral contents of okra (Abelmoschus esculentus L.). Open Agriculture. 2021;6(1):276-85.
[20]. Yang XJ. Effects of light quality on the physiological characteristics and quality in garlic seedling [M. D. Dissertation]. Tai’an: Shandong Agricultural University (in Chinese). 2011.
[21]. Qi LD. Effects of light quality on physiological characteristics and qualities of spinach [M. D. Dissertation]. Tai’an: Shandong Agricultural University (in Chinese). 2007.
[22]. Kopsell DA, Sams CE, Barickman TC, Morrow RC. Sprouting broccoli accumulate higher concentrations of nutritionally important metabolites under narrow-band light-emitting diode lighting. Journal of the American Society for Horticultural Science. 2014;139(4):469-77.
[23]. Hu JW. Effects of different proportions of red and blue light on the growth and physiological characteristics of mulberry seedlings. Acta Agric Boreali-Occident Sin. 2018;33:160–169 in Chinese
Volume 1, Issue 3
(Special Issue: papers selected from ICLS22, Istanbul, Turkey)
  • Receive Date: 18 September 2022
  • Revise Date: 28 September 2022
  • Accept Date: 10 October 2022