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절화 백합 잎마름병 방제 및 품질 보존을 위한 감마선 150 Gy와 Sodium Dichloroisocyanurate 병용처리

Combined Treatment with Gamma Irradiation and Sodium Dichloroisocyanurate to Control Leaf Blight and to Preserve Cut Lilies

  • 구태훈 (선문대학교 BT-융합제약공학과) ;
  • 홍성준 (선문대학교 BT-융합제약공학과) ;
  • 윤성철 (선문대학교 BT-융합제약공학과)
  • Koo, Tae-Hoon (Department of BT-Convergent Pharmaceutical Engineering, Sunmoon University) ;
  • Hong, Sung-Jun (Department of BT-Convergent Pharmaceutical Engineering, Sunmoon University) ;
  • Yun, Sung-Chul (Department of BT-Convergent Pharmaceutical Engineering, Sunmoon University)
  • 투고 : 2016.04.20
  • 심사 : 2016.05.31
  • 발행 : 2016.06.30

초록

절화 백합 조직에 손상을 일으키지 않는 수준의 감마선을 이용한 검역 현장적용을 위해 수출용 오리엔탈 계통 백합 품종 중 흰색인 시베리아와 분홍색인 소르본느 절화 백합에 150 Gy 감마선 조사(irradiation)를 실시하였다. 감마선 150 Gy와 다양한 수준(0, 40, 100, $200{\mu}g/l$)의 NaDCC를 병용처리하여 두 품종의 절화 백합의 잎마름병 방제를 평가한 결과, 꽃잎의 발병률(incidence)은 대조구 93%-95%에 비해 150 Gy 감마선과 $100{\mu}g/l$ 이상 농도의 NaDCC 병용처리한 발병률은 76%-83%로 통계적으로 유의하게 감소하였다. 하지만 꽃잎의 발병도(severity)에서는 감마선 병용처리에 따른 발병 억제 효과는 없었다. 150 Gy 감마선 처리는 만개기간을 연장시키는 저장성 개선의 효과를 얻지는 못했지만, 엽록소를 파괴하거나 생중량을 감소시키는 절화 백합의 품질저하도 없었다. 또한 분홍색의 소르본느 꽃잎의 탈색도 보이지 않았다. 따라서 수출용 절화 백합의 잎마름병 방제를 위해 150 Gy의 감마선과 NaDCC $100{\mu}g/l$의 병용처리 방안을 수출검역 SOP에 제안한다.

For the purpose of practical application of gamma irradiation for export lily without the ionic energy damage, 150 Gy gamma ray was suggested as the safe level on cut lilies, the oriental cultivar Siberia (white) and Sorbonne (pink). The combined treatments of 150 Gy gamma ray and sodium dichloroisocyanurate (NaDCC) at 0, 40, 100, and $200{\mu}g/l$, were tried to control lily leaf blight caused by Botrytis elliptica. Incidences of petal blight on the two oriental lilies at control were 93%-95%, whereas those at the combined treatments of 150 Gy and $100{\mu}g/l$ or higher of NaDCC were 76%-83%. However, severity of petal blight was not reduced by the combined treatments. Gamma irradiation at 150 Gy did not change the cut lily quality such as improve cut lily longevity of vase-life compare with the control. In addition, fresh weight, chlorophyll contents, and the color of pink petals of Sorbonne were not changed by 150 Gy of gamma irradiation. Therefore, we recommend the combined treatment of 150 Gy gamma irradiation and $100{\mu}g/l$ NaDCC for the standard operating procedure on cut lily for export quarantine to control leaf blight.

키워드

참고문헌

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