The purpose of this study was to investigate the effects of LED and QD-LED (Quantum Dot) irradiation on seed germination, antioxidant ability, and microbial growth, during red radish (Raphanus sativus L.) sprouts cultivation. Irradiated light was blue, red, blue + red and blue + red + far red (QD-LED) lights, and the controls were a fluorescent lamp (FL), and dark condition. Germination rate of red radish was highest in the dark condition. The plant height and fresh weight of red radish sprouts that irradiated each light for 24 hrs after 7 days growing in dark condition, did not shown significantly difference among treatments. After 24 hrs of light irradiation, cotyledon green was best in blue + red light, and the red hypocotyl was excellent in blue light and QD-LED light. DPPH and phenol contents were high in dark and blue + red light treatment, and anthocyanin content was high in blue light and QDLED light. Total aerobic counts were similar in all treatments and did not show bactericidal effect, whereas E. coli count was lowest in QD-LED light treatment, and yeast and mold counts were lowest in FL only treatment. Results suggest that when red radish seeds were germinated in dark condition and cultivated for 7 days as sprouts, and then treated with blue light or QD-LED light for 24 hrs, the seeds produced good quality red radish sprouts with greenish cotyledon, reddish hypocotyl, high anthocyanin content, and lower level of E coli contamination.

Abstract
 서 론
 재료 및 방법
  1. 광원에 따른 적무 발아율 비교
  2. 광원에 따른 생육 및 품질 비교
  3. 광원에 따른 미생물 증식
 결과 및 고찰
  1. 광원에 따른 적무 발아율 비교
  2. 광원에 따른 생육 및 품질 비교
  3. 광원에 따른 미생물 증식
 적 요
 Literature Cited

• 최인이(강원대학교 원예·시스템공학부 원예과학전공/강원대학교 농업생명과학연구원) | In-Lee Choi (Division of Horticulture and Systems Engineering, Program of Horticulture, Kangwon National University/Agricultural and Life Science Research Institute, Kangwon National University)
• 왕립(강원대학교 원예·시스템공학부 원예과학전공)
• 이주환(강원대학교 원예·시스템공학부 원예과학전공) | Ju Hwan Lee (Division of Horticulture and Systems Engineering, Program of Horticulture, Kangwon National University)
• 한수정(강원대학교 원예·시스템공학부 원예과학전공) | Su Jung Han (Division of Horticulture and Systems Engineering, Program of Horticulture, Kangwon National University)
• 고영욱(철원플라즈마 산업기술연구원) | Young-Wook Ko (Cheorwon Plasma Research Institute)
• 김용득(철원플라즈마 산업기술연구원) | Yongduk Kim (Cheorwon Plasma Research Institute)
• 강호민(강원대학교 원예·시스템공학부 원예과학전공/강원대학교 농업생명과학연구원) | Ho-Min Kang (Division of Horticulture and Systems Engineering, Program of Horticulture, Kangwon National University/Agricultural and Life Science Research Institute, Kangwon National University) Corresponding author