식물생장조절물질 처리가 서양민들레 종자 발아에 미치는 영향 = Influence of Plant Growth Regulator Application on Seed Germination of Dandelion (Taraxacum officinale)

다국어 초록 (Multilingual Abstract)

Dandelion (Taraxacum officinale) is a member of family Asteraceae that grows all over the Korea. Recently, dandelion was cultivated for medicinal crops because of its positive medicinal effects. However, dandelion is considered as a troublesome weed in grass lawns of golf course and orchards. This study was conducted to investigate the effect of plant growth regulators [gibberellins (GA3); kinetin; salicylic acid (SA); ethephon)] with different concentration on seed germination control of dandelion. Seed germination rates were increased in all concentration of GA3 and kinetin treatment compared to control. In the 0.5 mM of ethephon application, seed germination rate was more increased than that of control while seed germination rate was reduced in 1.0 and 1.5 mM of ethephon treatments. Seed germination rate was significantly decreased with different SA dilutions compared to control. The germination rate was more reduced when SA was applied in combination with GA3 than only SA treatments.

국문 초록 (Abstract)

서양민들레는 국화과 식물로서 한국 전역에서 자생하고있다. 최근에는 서양민들레의 효능으로 인해 최근 약용식물로 재배되고 있다. 그러나 서양민들레는 골프장 잔디밭이나 과수원에서는 잡초로 고려되고 있다. 본 실험은 다른 농도의 식물생장조절물질[gibberellins (GA3); kinetin;salicylic acid (SA); ethephon)] 처리가 서양민들레 종자발아율에 미치는 영향을 조사하기 위해 수행하였다. 실험결과, GA3및 kinetin 처리 모든 농도에서 무처리에 비하여종자발아율이 약 24.2~41.9% 높았다. Ethephon 0.5 mM의처리에서는 무처리에 비해 종자발아율이 7.5% 높았으나,1.0 및 1.5 mM 처리에서는 약 11~22% 가량 낮은 경향이었다. 반면에 SA와 GA3의 혼합처리 경우에는 했을 때 종자발아율은 SA 단독처리보다 더욱 낮았다.

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