FLOWER RESEARCH JOURNAL (화훼연구)

The Korean Society for Floricultural Science (한국화훼학회)
권호 표지

Effect of Drench Application of Growth Retardants on Growth and Development in Cut Lilies

절화 백합의 생장과 발육에 미치는 생장억제제의 관주처리 효과

  • 박인숙 (경북대학교 원예학과) ;
  • 박송경 (경북대학교 원예학과) ;
  • ;
  • 황윤정 (경북대학교 원예학과) ;
  • 강시용 (한국원자력연구원 방사선과학연구소) ;
  • 임기병 (경북대학교 원예학과)
  • Received : 2010.06.29
  • Accepted : 2010.07.30
  • Published : 2010.09.30
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Abstract

This study was carried out to investigate the effect of three different growth retardants for applying pot or bedding plant with 'Rialto', 'Elodie', and 'Raizan'. Ancymidol, uniconazole, and paclobutrazol were applied as a drench at various concentrations. In Oriental hybrid lily 'Rialto', no changes were observed not only plant height but also leaves and flowers in paclobutrazol treatment. But the growth of plant treated with ancymidol was inhibited above 30% compare to control regardless of concentrations. However, numbers of leaf and flower per plant were similar to those of controls. Plant height was similar to nontreated control in $1mg{\cdot}L^{-1}$ uniconazole treatment but that reduced about 30% in drench application of 5 and $10mg{\cdot}L^{-1}$ uniconazole. Asiatic hybrid lily 'Elodie' was not different in growth between application of paclobutrazol and nontreatment as 'Rialto'. While, in all ancymidol treatments, plant height was 50~60% shorter than that of control. Also, numbers of leaves were reduced and days to flowering were slightly delayed in $30mg{\cdot}L^{-1}$ ancymidol treatment as compared with the control. All traits except plant height of $1mg{\cdot}L^{-1}$ uniconazole were similar to control but there were differences of statistical significance between 5, $10mg{\cdot}L^{-1}$ uniconazole drench and nontreated control. Lilium ${\times}$ formolongi 'Raizan' like above two cultivars had no dwarf effect on height in paclobutrazol treatment. In drench application of ancymidol, plant height reduced over 60% than that of control regardless of concentrations. Especially, days to flowering were a little delayed with $30mg{\cdot}L^{-1}$ paclobutrazol treatment. Plant height of $10mg{\cdot}L^{-1}$ uniconazole was about 26% shorter than that of control, but other traits were no differences between uniconazole treatment and control. In result, the drench application of ancymidol and uniconazole was pretty effective for usage as pot lily without great changes of quantitative traits.

키가 큰 절화용 백합인 'Rialto'와 'Elodie' 및 'Raizan'을 분화 및 화단용으로 사용하기 위하여 ancymidol과 uniconazole 및 paclobutrazol을 농도별로 관주처리 하였다. 오리엔탈 백합인 'Rialto'의 경우, paclobutrazol을 처리한 구에서는 초장뿐만 아니라 잎과 꽃에 있어서도 변화를 관찰할 수 없었다. 그러나 ancymidol 처리구에서 생장은 농도에 관계없이 30% 이상 억제되었다. 한편 엽수나 개화수 등은 무처리구와 비슷한 경향이었다. Uniconazole $1mg{\cdot}L^{-1}$ 처리구에서 초장은 무처리구와 비슷한 경향이었으나 5와 $10mg{\cdot}L^{-1}$ 처리구에서는 30%정도 단축되었다. 아시아틱 백합인 'Elodie'의 경우 'Rialto'와 마찬가지로 paclobutrazol 처리구에서는 무처리구와 유의차를 관찰할 수 없었다. 한편 모든 ancymidol 관주처리구에서는 초장이 무처리구보다 50~60% 단축되는 효과를 나타내었다. 그리고 $30mg{\cdot}L^{-1}$의 ancymidol 처리구에서는 엽수가 감소하였으며 개화소요일수도 무처리구보다 다소 지연되었다. Uniconazole $1mg{\cdot}L^{-1}$ 처리구에서 초장을 제외한 모든 형질들은 무처리구와 유사하였지만 5와 $10mg{\cdot}L^{-1}$ 처리구에서는 무처리구와 유의차가 인정되었다. 신나팔나리인 'Raizan' 또한 상기의 두 품종과 마찬가지로 paclobutrazol 처리구에서는 왜화효과를 관찰할 수 없었다. Ancymidol 처리구는 농도에 관계없이 초장이 무처리구보다 60% 이상 단축되었으며 특히 $30mg{\cdot}L^{-1}$ 처리구에서는 개화소요일수가 다소 지연되었다. Uniconazole $10mg{\cdot}L^{-1}$ 처리구에서 초장은 약 26% 감소하였으나 다른 형질은 무처리구와 유의차가 없었다. 결과적으로, ancymidol과 uniconazole의 관주 처리는 양적 형질에 큰 변화 없이 초장을 줄여 분화용 백합으로 사용하기 위해서 매우 효과적이었다.

Keywords

Acknowledgement

Supported by : 농촌진흥청

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