Propagation of a Rare Variety Daphne kiusiana Miq. In Korea Through Softwood Cuttings

한반도 희귀식물인 백서향의 녹지삽목을 통한 증식

  • 노나영 (농촌진흥청 국립농업과학원 농업유전지원센터) ;
  • 송은영 (농촌진흥청 국립원예특작과학원 온난화대응농업연구센터) ;
  • 김성철 (농촌진흥청 국립원예특작과학원 온난화대응농업연구센터) ;
  • 고호철 (농촌진흥청 국립농업과학원 농업유전지원센터) ;
  • 이석영 (농촌진흥청 국립농업과학원 농업유전지원센터)
  • Received : 2010.11.18
  • Accepted : 2010.12.23
  • Published : 2010.12.31

Abstract

This study was conducted to find out the propagation method of a rare variety Daphne kiusiana Miq. in Korea through softwood cuttings. Daphne kiusiana Miq are the evergreen broad leaf tree which have lived in the southern part of Korea. The flowering time of Daphne kiusiana Miq is early spring and the flower has an attractive fragrance. Generally, plants are dioecious and only the male plants are found in Korea. Propagation by seed is very difficult in this tree. Softwood cuttings were taken to establish an efficient propagation method in Daphne kiusiana Miq Cuttings were grown in perlite:vermiculite (1 : 1), perlite, vermiculite, sand rooting media under shaded greenhouses during summer in 2007. The rooting rates of cuttings were 86.7%, 95%, 75% and 95% in perlite:vermiculite (1 : 1), perlite, vermiculite and sand media, respectively. Softwood cuttings taken on July and rooting at $27^{\circ}C$ were significantly improved the growth and rooting rates. Softwood cutting can be an effective means of propagation in Daphne kiusiana Miq.

본 실험은 희귀 자생식물인 백서향의 삽목 증식 특성을 구명하기 위해 수행되었다. 백서향은 남부지방 해변의 산기슭에 나는 상록관목으로 이른 봄에 향기가 아주 뛰어난 식물이다. 자웅이주식물로 국내에는 대부분 수나무가 많아 채종이 어려워 종자번식이 힘든 상황이므로 삽목 방법을 통해 증식을 시도하였다. 백서향의 삽목에 적합한 토양을 찾기 위해 펄라이트, 버미큘라이트, 펄라이트와 버미큘라이트 혼용(1 : 1), 모래로 4 처리를 수행한 결과, 발근율은 각각 86.7%, 95%, 75%, 95%로 나타났다. 온도를 달리히여 3처리로 삽목을 하였더니 발근율과 뿌리길이의 생육을 살펴볼 때 $27^{\circ}C$에서 생육이 우수하였다. 시기별로 6월 19일, 7월 19일, 8월 19일에 삽목한 결과 생존율, 발근율은 통계적으로 오차 범위 내에서 공통적으로 우수하였고, 그 중 7월 삽목의 뿌리생장이 가장 우수하였다. 백서향의 삽목증식은 펄라이트와 버미큘라이트를 혼용하여 7월에 삽수를 채취하고 생육기간 중 온도를 $27^{\circ}C$로 관리히는 것이 우수한 것으로 나타났다.

Keywords

References

  1. Choi, B.J., C.K. Sang, E.J. Choi, and S.A. Noh. 2000. Effect of rooting media on rooting and root growth of rose cuttings. Kor. J. Hort. Sci. Technol. 18:819-822.
  2. Hwang, K.S. 1991. Rooting of peach cuttings influenced by cultivars and hormonal changes during the rooting of hardwood cuttings. J. Kor. Soc. Hort. Sci. 40:178-183.
  3. Hwang, S.K., H.J. Hwang, and K.S. Kim. 1998. Effect of cutting dates and rooting promoters on rooting of Rhododendron mucronulatum Turcz. Kor. J. Hort. Sci. Technol. 16:33-36.
  4. Jeong, J.W., H.J. Kim, M.Y. Lee, and B.R. Jeong. 2000. Effect of length of cutting and no. of leaflets attached and cutting position on rooting and growth of cut Rosa hybrida L. "Red Sandra" and "Little Marble" cuttings. Kor. J. Hort. Sci. Technol. 18:152-152.
  5. Jung, J.W., B.Y. Lee, H.Y. Kim, H.K. Kim, and S.J. Hong. 2008. Growth and survival rate of softwood cuttings influenced by bed media, cutting length and thickness on several cultivars of highbush blueberry. Kor. J. Hort. Sci. Technol. 26:134-138.
  6. Kreen, S., M. Svensson, and K. Rumpunen. 2002. Rooting of clematis microshoots and stem cuttings in different substrates. Scientia Hort. 96:351-357. https://doi.org/10.1016/S0304-4238(02)00126-7
  7. Kwon, S.I., K.R. Kim, H.Y. Kim, and M.J. Kim. 1999. Effects of various combined-treatment by some growth regulators, sugars and inorganic materials with IBA on rooting in hardwood cuttings of apple rootstock M.26 (Malus domestica Bork). J. Kor. Soc. Hort. Sci. 40:447-450.
  8. Lee, C.H., O.K. Kwon, and Y.J. Kim. 2005 Rooting characteristics of stem tip cuttings in Ardisia pusilla as influenced by cutting stage, rooting medium, temperature, and plant growth regulator pretreatment. J. Kor. Soc. Hort. Sci. 46:217-224.
  9. Lee, H.S., J.S. Lee, and B.H. Kwack. 1998. Characteristics of rooting and shoot growth influenced by cultivar and flower types in Hibiscus syriacus hardwood cutting. Kor. J. Hort. Sci. Technol. 16:528-530.
  10. Lee, J.G. and B.Y. Lee. 2007. Effect of media composition of growth and rooting of highbush blueberry cuttings. Kor. J. Hort. Sci. Technol. 25:355-359.
  11. Oh, W., S.H. Kim, Y.A. Jang, Y.H. Kim, and K.S. Kim. 1997. Effects of IBA treatment, decapitation, and remaining leaves on dry matter partitioning and rooting of chrysanthemum cuttings. J. Kor. Soc. Hort. Sci. 15 (Suppl. II):362-363.
  12. Shim, K.K. and Y.J. Yim. 1977. Effect of planting methods on the early growth of softwood grafted dwarf apple trees. J. Kor. Soc. Hort. Sci. 18:117-124.
  13. Trobec, M., F. SStampar, R. Vebericc, and G. Osterc. 2005. Fluctuations of different endogenous phenolic compounds and cinnamic acid in the first days of the rooting process of cherry rootstock "GiSelA 5" leafy cuttings. J. of Plant Physiol. 162:589-597. https://doi.org/10.1016/j.jplph.2004.10.009
  14. Yoo, Y.K. and K.S. Kim. 1997. Effects of plant growth regulators and cutting conditions on rooting of soft-wood and semihardwood cutting in White Forsythia. J. Kor. Soc. Hort. Sci. 38:263-271.