Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
권호 표지

Effect of Presowing Seed Treatments on Germination and Seedling Emergence in Taraxacum platycarpum

민들레 종자의 파종전 처리가 발아율 및 입모율에 미치는 영향

  • Jeon, Seung-Ho (Department of Agronomy, Gyenogsang Natl. University) ;
  • Son, Daniel (Department of Agronomy, Gyenogsang Natl. University) ;
  • Ryu, Yeong-Seop (Korea Institute of Planning and Evaluation for Technology in Food and Agriculture) ;
  • Kim, Seok-Hyeon (Department of Agronomy, Gyenogsang Natl. University) ;
  • Chung, Jong-Il (Department of Agronomy, Gyenogsang Natl. University) ;
  • Kim, Min-Chul (Department of Agronomy, Gyenogsang Natl. University) ;
  • Shim, Sang-In (Department of Agronomy, Gyenogsang Natl. University)
  • Received : 2009.08.24
  • Accepted : 2010.01.04
  • Published : 2010.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

Several presowing seed treatments have been used to facilitate the seed germination and seedling emergence. The study was performed to design a model of presowing seed treatments in Taraxacum platycarpum. Germination and seedling growth responses to temperature, drying, chilling, $GA_3$ and priming were investigated to know the optimum germination conditions and presowing treatment. The optimum temperature condition for germination and seedling growth were $15{\sim}20^{\circ}C$ at dark condition. The seeds exposed to infra red light, however, did not germinate. The moisture content of seeds dried at $35^{\circ}C$ for 3.5 hours was returned to the level of unimbibed seeds. The germination of seeds dried under dark condition was better than those dried under infra red light. Prechilling treatment imposed for 6 weeks showed higher germination rate than $GA_3$ treatment or priming. In field test, the highest field emergence was observed in the seeds dried after prechilled for 6 weeks and followed by drying followed by $GA_3$ > low temperature > $KNO_3$ priming. Imbibition with 0.1 mM $GA_3$ solution for 2 hours then drying at 35 for 3.5 hour under dark condition was effective to the practical presowing treatment for Taraxacum seeds.

Keywords

References

  1. Ahn YH and Choi KY. (2000). The comparisons of germination characteristic in native Taraxacum spp. and Traxacum officinale seeds. Korean Journal of Ecology. 14:199-204.
  2. Bewley JD and Black M. (1982a). Seeds: Physiology of development and germination (2nd eds). Plenum Press. New York. USA. p. 60-198.
  3. Bewley JD and Black M. (1982b). Seeds: Physiology of development and germination (2nd eds). Plenum Press. New York. USA. p. 276-339.
  4. Bewley JD and Black M. (1994). Seeds: Physiology of development and germination (2nd eds). Plenum Press. New York. USA. p. 199-271.
  5. Chong C and Bible BB. (1995). Germination and emergence. p. 85-146. In M. Pessarakli (ed.). Handbook of plant and crop physiology. Marcel Dekker, Inc., New York. USA.
  6. Cho SY, Oh YJ, Park JY, Lee MK and Kim MJ. (2003). Effect of Dandelion (Taraxacum officinale) leaf extracts on hepatic antioxidative system in rats fed high cholesterol deit. Journal of Korean Society of Food Science and Nutrition. 32:458-463. https://doi.org/10.3746/jkfn.2003.32.3.458
  7. Dennis Jr. FG. (1995). Dormancy: Manifestations and Causes. p. 437-459. In M. Pessarakli (ed.). Handbook of plant and crop physiology. Marcel Dekker, Inc., New York. USA.
  8. Hartmann HT, Kester DE, Davies Jr. FT and Geneve RL, (1997). Plant propagation: Principles and practices (6th eds.). Prentice Hall. New Jersey. USA. p. 40-104.
  9. Jeon HJ, Kang HJ, Jung HJ, Kang YS, Lim CJ, Kim YM and Park EH. (2008). Anti-inflammatory activity of Taraxacum officinale. Journal of Ethnopharmacology. 115:82-88. https://doi.org/10.1016/j.jep.2007.09.006
  10. ISTA. (1985). International rules for seed testing. International Seed Testing Association. Seed Science Technology. 13:299-355.
  11. Kang JH, Jeon BS, Yoon SY, Lee SW and Chung JI. (2003). Pre-sowing treatments to improve germination of intact seeds in burcucumber (Sicyos angulatus L.). Korean Journal of Crop Science 48:169-172.
  12. Kang JH and Yoon SY. (2003). A proposed model for presowing seed treatments to promote germination and seedling emergence. Korean Journal of Medicinal Crop Science. 11:321-328.
  13. Kang JH and Yoon SY. (2004). Analysis on practicality of seed treatments for medicinal plants published in Korean scientific journals. Korean Journal of Medicinal Crop Science. 12:328-341.
  14. Koo HN, Hong SH, Song BK, Kim CH, Yoo YH and Kim HM. (2004). Taraxacum officinale induces cytotoxicity through TNF-alpha and IL-alpha secreetion in Hep G2 cells. Life Science. 74:1149-1157. https://doi.org/10.1016/j.lfs.2003.07.030
  15. Park JY, CM, Kim JJ and Song YS. (2008). Hepatoprotective activity of Dandelion (Taraxacum officinale) water extract against D-galactosamine-induced Hepatitis in rats. Journal of Korean Society of Food Science and Nutrition. 37:177-183. https://doi.org/10.3746/jkfn.2008.37.2.177
  16. Shen ZH, Parrish DJ, Wolf DD and Welbaum GE. (2001). Stratification in switchgrass seeds is reversed and hastened by drying. Crop Science. 41:1546-1551. https://doi.org/10.2135/cropsci2001.4151546x
  17. Sigstedt SC, Hooten CJ, Callewaert MC, Jenkins AR, Romero AE, Pullin MJ, Kornienko A, Lowrey TK, Slambrouck SV and Steelant WF. (2008). Evaluation of aqueous extracts of Taraxacum officinale on growth and invasion of breast and prostate cancer cells. International Journal of Oncology. 32:1085-1090.