생물환경조절학회지 (Journal of Bio-Environment Control)

  • 제17권4호
  • /
  • Pages.297-305
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  • 2008
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  • 1229-4675(pISSN)
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  • 2765-3641(eISSN)
한국생물환경조절학회 (The Korean Society for Bio-Environment Control)
권호 표지

치커리(Cichorium intybus L.)와 쑥갓(Chrysanthemum coronarium L.)의 기내 종자발아 개선

Improvement of In Vitro Seed Germination in Chicory (Cichorium intybus L.) and Garland Chrysanthemum (Chrysanthemum coronarium L.)

  • 황현정 (경희대학교 생명자원과학연구원) ;
  • 최근원 (경희대학교 생명자원과학연구원)
  • 발행 : 2008.12.31
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초록

치커리와 쑥갓에 있어 기내 파종 시 발아 및 무균묘 생산을 증진시키기 위한 적절한 방법을 제안하기 위해 일련의 실험들이 수행되었다. NaOCl의 적정 처리농도와 시간 검정을 통해 치커리 'Precole'과 'Chiavari' 및 쑥갓 'Okiku 3' 모두 Naocl 5%로 15분간 처리하는 것이 발아 및 유묘형성을 촉진시키고 오염발생을 억제하는 것으로 관찰되었다. 배지조성에 있어 MS와 1/2 MS처리구들의 발아반응성은 뚜렷이 차이가 나타나지 않았으며, sucrose 농도가 높아짐에 따라 발아 및 유묘형성이 지연되었다. 배양용기에 따른 반응성의 차이는 치커리 'Precole'의 경우 petri-dish에서 양호한 발아율 및 유묘형성율을 보여주었지만, 치커리 'Chiavari'와 쑥갓 'Okiku 3'에서는 용기에 큰 영향을 받지 않았다. 초음파 처리는 치커리의 발아율 및 유묘형성율을 증가시켰지만, 쑥갓 'Okiku 3'에서는 초음파 처리효과가 나타나지 않았다. 따라서 치커리와 쑥갓 모두에서 NaOCl 5%, 15분간 종자소독하고, sucrose가 무첨가된 1/2 MS 배지로 petri-dish를 이용하며, 초음파 처리는 NaOCl 5% 용매에서 120분간 하는 것이 기내 발아향상에 적당한 조건으로 선정되었다.

A series of experiments were conducted to suggest efficient in vitro germination conditions to improve germination rate and aseptic seedling production in chicory and garland chrysanthemum. For this purpose, various levels of NaOCl concentration and soaking treatment time combinations were tasted. Fifteen minutes of soaking treatment with 5% NaOCl solution significantly improved germination and seedling formation percentages and prevented contamination in both chicory 'Precole' and 'Chiavari' and garland chrysanthemum 'Okiku 3'. There was no significant difference in germination response between MS and 1/2 MS medium compositions, but germination and seedling formation were delayed as sucrose concentration increased. Although petri-dish among various culture containers gave rise to improved germination responses in chicory 'Precole', there was no significant difference in germination responses among culture container types in chicory 'Chiavari' and garland chrysanthemum 'Okiku 3'. The ultrasonic treatment stimulated germination and seedling formation in both chicory cultivars but there was no effect in garland chrysanthemum 'Okiku 3'. The results suggested 15 minutes with 5% NaOCl for seed sterilization, 1/2 MS medium with no sucrose and petri-dish as proper medium composition and culture container, and 120 minutes with 5% NaOCl solution of ultrasonic treatment as promoting method for in vitro germination in chicory and garland chrysanthemum.

키워드

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