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2019 Vol.32, Issue 3 Preview Page

Research Article

Growth Characteristics and DPPH Radical Scavenging Activity of Lettuce ‘Fidel’ in Plant Factory Using Activated Mineral Groups and Light-emitting Diode Lights
Tae-Eui Song1
,
Seong-Jik Park2
,
Joon-Kwan Moon3
,
In Soo Kim4
,
Chang Hee Lee5*
1Graduate Student, Department of Horticulture Life Sciences, Hankyong National University
2Professor, Department of Bioresources and Rural Systems Engineering, Hankyong National University
3Professor, Department of Plant Life and Environment Sciences, Hankyong National University
4CEO, Insungtec Company Limited
5Professor, Department of Horticulture Life Sciences, Hankyong National University
* Corresponding Author
30 June 2019. pp. 228-236
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Abstract

This study is conducted to investigate the effects of growth characteristics (GC) and DPPH radical scavenging activity (DRSA) of the heading lettuce ‘Fidel’ depending on four concentrations of activated mineral groups (AMG: 1.6% active minerals and 0.03% CaO) added to basic nutrient solutions (diluted by 0, 0.05, 0.1, and 0.2%) and on four different light-emitting diodes (LED; B:R:W ratio = 0:1:12, 0:1:9, 0:5:5, and 2:3:5). Both 0.1 and 0.2% AMG showed better GC of lettuce in plant width, plant length, leaf width, leaf length, and the number of leaves than those of other AMG, while leaf thickness and chlorophyll value did not show significant difference among all AMG. Moreover, 0.1 and 0.2% AMG showed heavier shoot fresh weights than those of other AMG. As for the combinations of AMG and LED, B0:R5:W5 showed the best lettuce GC regardless of AMG compared to other AMG and LED combinations. As shown in the above results of LED, although there was a difference in lettuce growth by LED, the differences of lettuce growth by AMG were statistically significant. The DRSA was the highest at 82.8% in B2:R3:W5, followed by B0:R5:W5 at 77.8%. LED showed differences but AMG did not affect DRSA. Therefore, the optimal conditions in plant factory for GC and DRSA of the lettuce were 0.1% AMG and B0:R5:W5.

Keywords
Fidel
Growth characteristics
Heading lettuce
LED
Plant factory
Radical scavenging activity
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Information
  • Publisher :The Plant Resources Society of Korea
  • Publisher(Ko) :한국자원식물학회
  • Journal Title :Korean Journal of Plant Resources
  • Journal Title(Ko) :한국자원식물학회지
  • Volume : 32
  • No :3
  • Pages :228-236
  • Received Date : 2019-06-05
  • Revised Date : 2019-06-19
  • Accepted Date : 2019-06-20
  • DOI :https://doi.org/10.7732/kjpr.2019.32.3.228
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