Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Flowering Control Using by Red Light of Perilla

적색광을 이용한 들깨의 개화조절

  • Hong, Seung-Chang (Climate Change and Agroecology Division, National Academy of Agricultural Science(NAAS), RDA) ;
  • Kwon, Soon-Ik (Climate Change and Agroecology Division, National Academy of Agricultural Science(NAAS), RDA) ;
  • Kim, Min-Kyeong (Climate Change and Agroecology Division, National Academy of Agricultural Science(NAAS), RDA) ;
  • Chae, Mi-Jin (Climate Change and Agroecology Division, National Academy of Agricultural Science(NAAS), RDA) ;
  • Jung, Goo-Bok (Climate Change and Agroecology Division, National Academy of Agricultural Science(NAAS), RDA) ;
  • Kang, Kee-Kyung (Climate Change and Agroecology Division, National Academy of Agricultural Science(NAAS), RDA)
  • 홍성창 (농촌진흥청 국립농업과학원) ;
  • 권순익 (농촌진흥청 국립농업과학원) ;
  • 김민경 (농촌진흥청 국립농업과학원) ;
  • 채미진 (농촌진흥청 국립농업과학원) ;
  • 정구복 (농촌진흥청 국립농업과학원) ;
  • 강기경 (농촌진흥청 국립농업과학원)
  • Received : 2011.11.12
  • Accepted : 2012.09.18
  • Published : 2012.09.30
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Abstract

BACKGROUND: This experiment was conducted to investigate the effects of red light on inhibition of flowering and vegetative growth of perilla (Perilla Frutescens. L). METHODS AND RESULTS: To determine red light intensity for inhibiting floral induction of perilla 6h light plus daylength extension (17:00-23:00) with three different intensity of red lights 0.046, 0.114 and $0.177{\mu}mol/m^2/s$ were treated respectively, and control plants were grown under 11(06:00-17:00)/13(17:00-06:00)h light/dark environment. Red(660nm) and far-red(730nm) light were irradiated for night break treatment subsequently to investigate photoreversible flowering response of perilla 'Manchu'. The flowering was inhibited by night break with red light, but sequential far-red light induced floral induction of perilla. Perilla not flowered by red light intensity over $0.177{\mu}mol/m^2/s$. Red light of $0.2{\mu}mol/m^2/s$ was irradiated for 6 hours (20:00-02:00) with LEDs device in plastic house. Perilla not flowered and continued the vegetative growth by red light treatment and the plant length, number of leaves, fresh weight, and leaf area of perilla were increased by 3%, 7%, 21%, and 19%, respectively, compared to incandescent control. CONCLUSION: These results showed that red(660nm) light for daylength extension could be used to control flowering and to enhance production of perilla leaf.

적색 LED를 이용한 들깨의 개화억제를 위한 일장연장처리 기술을 개발하기 위하여 적색광에 대한 들깨의 개화와 생육반응을 검토하였다. 들깨는 적색광에 의한 일장연장 처리로 개화가 억제되었으나 초적색광 조사로 개화하여 광가역성을 나타냈다. 인공생육실 환경하에서 적색광 $0.177{\mu}mol/m^2/s$ (PAR : $0.62{\mu}mol/m^2/s$)로 일장연장 처리시 들깨의 개화가 억제되었다. 비닐하우스 시험포장에서 적색광 $0.2{\mu}mol/m^2/s$ 처리(PAR : $0.7{\mu}mol/m^2/s$)는 관행의 백열등 30 Lux 처리와 같이 개화하지 않고 영양생장을 지속하였다. 적색 LED장치를 이용한 일장연장 처리는 관행의 백열등 처리보다 들깨의 초장은 3%, 엽수는 7%, 엽생체중은 21%, 엽면적은 19% 증가시키는 경향이었다.

Keywords

References

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