Effects of IBA, and NAA on the Rooting of Wild Hydrangea serrata for. acuminata

자생 산수국(Hydrangea serrata)의 발근에 미치는 IBA와 NAA의 영향

  • Ryu, Mi-Jin (Department of Ecology Landscape Architecture-Design, Graduate School of Chonbuk National University) ;
  • Park, Byoung-Mo (Department of Ecology Landscape Architecture-Design, Graduate School of Chonbuk National University) ;
  • Bae, Jong-Hyang (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University)
  • 류미진 (전북대학교 환경조경디자인학과) ;
  • 박병모 (전북대학교 환경조경디자인학과) ;
  • 배종향 (원광대학교 원예애완동식물학부)
  • Received : 2010.11.02
  • Accepted : 2010.12.17
  • Published : 2010.12.31

Abstract

This study was conducted to find out the appropriate type and concentration of plant growth regulator for mass production of wild type Hydrangea serrata. And the optimal soaking time for rooting of the cuttings was also investigated. When the cuttings of Hydrangea serrata were cultivated for 6 weeks after immersing in $50mg{\cdot}L^{-1}$ of IBA for 3 hrs, the number of roots was 90.6. However the number was significantly decreased when the cuttings were treated with $10mg{\cdot}L^{-1}$ of IBA. The rooting ratio was 100% when the cuttings was immersed in 1,000, 2000 and $3000mg{\cdot}L^{-1}$ of NAA solution for 5, 3 and 10 sec., respectively. Despite the perfect rooting, the number of roots was decreased. The number of roots was 105.5 when the cuttings were treated in $2,000\;mg{\cdot}L^{-1}$ of NAA for 5 sec., which was the highest number in NAA treatment. Overall, the rooting ratio and growth was better when the cutting was treated with low concentration of IBA ($50{\sim}250\;mg{\cdot}L^{-1}$) than the treatment of NAA. And the most appropriate concentration and time fot the treatment of IBA was $50mg{\cdot}L^{-1}$ and 3 hrs, respectively.

자생 산수국의 대량번식을 위하여 삽목에 적합한 생장조절물질의 종류 및 농도와 침지시간이 삽목에 미치는 영향을 조사하였다. 자생 산수국의 숙지 삽목시 생장조절물질인 IBA와 NAA를 저농도($10{\sim}250\;mg{\cdot}L^{-1}$) 및 고농도($500{\sim}3,000mg{\cdot}L^{-1}$)로 침지시간을 각각 다르게 처리하여 삽목 한 후 42일(6주)째 발근율, 발근수, 근장, 엽장, 엽폭를 조사하였다. IBA처리의 경우 발근수, 근장, 엽장, 엽폭은 저농도($50{\sim}250\;mg{\cdot}L^{-1}$)일때 우수하였다. 그 중 IBA $50mg{\cdot}L^{-1}$ 3시간 침지처리구에서 근수가 90.55개로 가장 좋았으며, IBA $10mg{\cdot}L^{-1}$일때 는 매우 저조하였으므로 산수국의 대량 번식에는 효과를 주지 못하는 것으로 판단되었다. 처리에서는 NAA $1000mg{\cdot}L^{-1}$ 5초 침지, $2000mg{\cdot}L^{-1}$ 3초 침지, $3000mg{\cdot}L^{-1}$ 10초 침지 일때 발근율 100%를 보였으나 발근율에 비해 발근수는 오히려 감소되는 것을 볼 수 있었으며, NAA는 저농도($10{\sim}250\;mg{\cdot}L^{-1}$)보다 고농도($1,000{\sim}3000mg{\cdot}L^{-1}$)일때 효과가 높았으며 고농도 중 NAA $2000mg{\cdot}L^{-1}$ 5초 침지일 때는 발근수가 105.45개로 가장 많은 발근수가 나타났다. NAA의 고농도처리에서는 농도가 높고, 순간침지는 짧을수록 효과가 가장 높은 것을 볼수 있었다. 따라서 자생 산수국의 대량번식을 위한 삽목번식에 적합한 생장조절물질은 NAA보다 IBA 저농도($50{\sim}250\;mg{\cdot}L^{-1}$)일 때 발근율 및 효과가 높았다. 이와 같이 자생 산수국의 대량번식에 적합한 생장조절 물질은 IBA가 NAA에 비해 발근율 및 발근수 등이 좋았으며, IBA $50mg{\cdot}L^{-1}$ 3시간이 삽목에 가장 효과적이었다.

Keywords

References

  1. Ahn, Y.H. and T.J. Lee. 1997. Encyclopedia of Korea native plants. p. 200. Tree of life Publ. Co., Seoul, Korea. (in Korean).
  2. Al-Saquri, F. and P.G. Alderson. 1996. Effect of IBA, cutting type and rooting media on rooting of Rosa centifolia. J. Hort. Sxi. 71:72-737.
  3. Ko, G.S. and U.S. Jeon. 2003. Korea wild flower. pp.271-272. Iljin Publ. Co., Seoul, Korea (in Korean).
  4. Kwon, O.J., K.K. Shim, and Y.M. Ha. 1997. Softwood cutting of Korean native Styrax japonicus for landscape tree uses. J. Kor. Soc. Hort. Sci. 38(2):169-175.
  5. Lee, J.S., J. Hong, J.J. Lee, and Y.K. Chang. 2002. Effect of cutting time and dipping treatment of auxins on rooting of Styrax japonica cuttings. Kor. J. Hort. Sci. Technol. 20(3):242-245.
  6. Lee, J.S., S.W. Han. H.J. Kim, and N.Y. Lee. 2007. Effect of cutting period and IBA, NAA, Rooton on the rooting of Hydrangea serrata. J. Kor. Soc. Plant, People and Environ. 10(3):131-134.
  7. Ministry of Agriculture & Forestry (MAF). 2006. The present condition of flowers cultivation.
  8. Orozco-Obando, W., G.N. Hresch, and H.Y. Wetzstein. 2005. Genotypic variation in flower induction and development in Hydrangea macrophylla. HortScience 40(6):1695-1698.
  9. Sivaci, A. 2006. Seasonal changes of total carbohydrate contents in three varieties of apple (Malus sylvestris Miller) stem cuttings. Sci. Hort. 109:234-237. https://doi.org/10.1016/j.scienta.2006.04.012
  10. Yoo, Y.K. and K.S. Kim. 1996. Effects of plant growth regulators and removal of floral buds on rooting ability in hardwood cutting of white forsythia (Abeliophyllu distichum Nakai). J. Kor. Soc. Hort. Sci. 37(6):819-826.