Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effect of Light, $GA_3$, $KNO_3$ Treatments on the Germination of Chilean Wild Flower

칠레 야생화의 발아율에 미치는 광조건 그리고 $GA_3$, $KNO_3$ 처리 효과

  • Choi, In-Lee (Dept. of Horticulture, Kangwon Nat'l. Univ.) ;
  • Lee, Dong-Jun (Dept. of Forest Resource Conservation, Korea National Arboretum) ;
  • Lee, Kyoung-Soo (Dept. of Horticulture, Kangwon Nat'l. Univ.) ;
  • Son, Jin-Sung (Dept. of Horticulture, Kangwon Nat'l. Univ.) ;
  • Choi, Kyung (Dept. of Forest Resource Conservation, Korea National Arboretum) ;
  • Park, Kwang-Woo (Dept. of Forest Resource Conservation, Korea National Arboretum) ;
  • Kang, Ho-Min (Dept. of Horticulture, Kangwon Nat'l. Univ.)
  • Received : 2012.03.01
  • Accepted : 2012.03.24
  • Published : 2012.03.31
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Abstract

Chilean wild flower seeds showed low germination rate and lacked germination uniformity. This experiment was conducted to find out the effects of light conditions, $GA_3$ (50 mg/L, 100 mg/L, 200 mg/L) and $KNO_3$ (0.1%, 0.2%, 0.4%) treatments on germination of five species of Chilean wild flower seeds. The seeds of $Schizanthus$ $candidus$, $Schizanthus$ $hookerii$, and $Schizanthus$ $litoralis$ did not germinated in light condition. The others did not show a significant different germination rate under light and dark conditions. The germination rate of $Mimulus$ $luteus$, $Schizanthus$ $candidus$, $Schizanthus$ $hookerii$ increased 2.3, 5.6, and 3.2 times compared with control, respectively in $GA_3$-200 mg/L treatment, but that of $Rhodophiala$ $ananuca$ enhanced slightly in $GA_3$-50 mg/L treatment. Those results suggested that the germination rate of Chilean wild flower seeds enhanced by $GA_3$ treatment that is very efficient in breaking seed dormancy.

칠레산 야생화 종자는 발아율이 낮고, 종자의 등숙 정도가 불량하다. 이에 본 연구는 광조건 그리고 $GA_3$(50mg/L, 100mg/L, 200mg/L)와 $KNO_3$(0.1%, 0.2%, 0.4%) 처리가 5종의 칠레산 야생화 종자의 발아율에 미치는 영향을 알아보고자 수행되었다. 광조건 실험에서 $Schizanthus$ $candidus$, $Schizanthus$ $hookerii$, $Schizanthus$ $litoralis$ 종은 명조건에서는 발아가 전혀 이루어지지 않았다. $GA_3$와 $KNO_3$ 처리에서는 $Mimulus$ $luteus$, $Schizanthus$ $candidus$, $Schizanthus$ $hookerii$ 종은 $GA_3$-200mg/L 처리구에서 무처리구에 비해 각각 2.3배, 5.6배, 3.2배의 발아율 증가효과를 보였다. 그러나 $Rhodophiala$ $ananuca$ 종은 $GA_3$-50mg/L 처리구에서 다소 높은 발아율을 나타냈다. 발아율이 낮은 칠레산 야생화 종자의 발아 촉진에는 식물 종자의 휴면타파의 효과가 있는 $GA_3$ 처리가 효과적인 것으로 생각된다.

Keywords

References

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