Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
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Effect of Seed Soaking and Foliar Spray of Plant Growth Retardants on Growth and Flowering in Zinnia elegans

백일홍의 생장 및 개화에 미치는 식물생장억제제의 침종 및 경엽살포의 영향

  • Lee, Seung Woo (Horticulture, Division of Life Science, Kyung Hee University, Research Institute of Plant Metabolism) ;
  • Ahn, Sung Eun (Horticulture, Division of Life Science, Kyung Hee University, Research Institute of Plant Metabolism) ;
  • Kim, Young Chai (Forestry Major, Division of Life Science, Kyung Hee University, Research Institute of Plant Metabolism)
  • 이승우 (경희대학교 생명과학부 원예학 전공, 식물대사연구센터) ;
  • 안성은 (경희대학교 생명과학부 원예학 전공, 식물대사연구센터) ;
  • 김영채 (경희대학교 생명과학부 삼림과학 전공, 식물대사연구센터)
  • Received : 2001.11.21
  • Accepted : 2001.12.06
  • Published : 2001.12.31
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Abstract

The effects of seed soaking (8 and 24 hours) and foliar spray of plant growth retardants (daminozide, chlormequat and uniconazole) on growth control in zinnia were investigated. For seed soaking of 'Dream Land Rose', the changes in plant height was not affected by seed soaking time (8 and 24 hours), while it was severely suppressed by high concentration of chemicals tested. An application of $125mg{\cdot}L^{-1}$ uniconazole was most effective for plant height suppression. Flowering was promoted by all treatments of chemicals. However, for 'Dream Land Scarlet', plant height control at 24 hours seed soaking showed more effective than 8 hours, and all treatments of chemicals decreased plant height. Uniconazole gave the best result for plant height control. Flowering tended to be hastened by the treatment of chemicals. For foliar spray, plant height was remarkably decreased at high concentration of uniconazole. Flowering was promoted by chlormequat and uniconazole in both 'Dream Land Rose' and 'Dream Land Scarlet'. Also, daminozide decreased number of petals.

본 실험은 왜화제 daminozide, chlormequat, uniconazole의 침종처리(8시간, 24시간)와 경엽살포가 백일홍의 생육에 미치는 영향을 조사하기 위하여 수행하였다. 침종처리의 경우 'Dream Land Rose'의 초장의 변화는 침종시간에 따른 차이가 없이 처리농도가 높을수록 왜화효과가 크게 나타났고, 특히 uniconazole $125mg{\cdot}L^{-1}$에서 큰 왜화효과를 보였다. 개화소요일수는 모든 약제처리에서 단축되었다. 'Dream Land Scarlet'의 초장은 8시간 침종에 비하여 24시간 침종에서 왜화효과가 컸으며 uniconazole이 가장 효과적이었다. 개화소요일수도 약제처리에 의하여 감소하는 경향을 보였다. 한편, 경엽살포처리에서는 'Dream Land Rose'와 'Dream Land Scar1et'모두 초장이 uniconazole 고농도에서 현저한 감소를 보였다. 개화소요일수는 chlormequat과 uniconazole 처리에서 단축되었다. Daminozide는 설상화수를 크게 감소시켰다.

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