Horticulture, Environment, and Biotechnology

, Volume 55, Issue 4, pp 287–292 | Cite as

Effect of monochromatic UV-A LED irradiation on the growth of tomato seedlings

  • Bekhzod KhoshimkhujaevEmail author
  • Joon Kook Kwon
  • Kyoung Sub Park
  • Hyo Gil Choi
  • Sun Yi Lee
Research Report Protected Horticulture


Effect of 376 nm UV-A LED irradiation on the growth and morphology of tomato seedlings was studied. Tomato seedlings were grown under the 658 nm red LEDs or the red LED supplemented with two irradiation levels of the UV-A. The growth and development of tomato seedlings were significantly enhanced under the red light supplemented with the UV-A. Under the UV-A treatments, the tomato seedlings became more compact, the growth of plant organs was balanced, the leaf area was increased, and the total plant fresh and dry weights were also enhanced. Our findings suggested that the 376 nm UV-A from LEDs had a beneficial effect on the growth and development of tomato seedlings as similarly to the blue light.

Additional key words

biomass growth chamber light emitting diode (LED) near ultra violet (near UV) photosynthetically active radiation (PAR) 


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Copyright information

© Korean Society for Horticultural Science and Springer-Verlag GmbH 2014

Authors and Affiliations

  • Bekhzod Khoshimkhujaev
    • 1
    Email author
  • Joon Kook Kwon
    • 1
  • Kyoung Sub Park
    • 1
  • Hyo Gil Choi
    • 1
  • Sun Yi Lee
    • 1
  1. 1.Protected Horticulture Research StationNational Institute of Horticultural & Herbal ScienceHamanKorea

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