In Vivo and In Vitro Rooting of Rehmannia glutinosa Plantlet Regenerated in Vitro

기내증식된 지황묘의 기내 및 기외 발근

  • 백기엽 (충북대학교 농과대학 원예학과) ;
  • 유광진 (충북대학교 농과대학 원예학과) ;
  • 박상일 (충북대학교 농과대학 농학과)
  • Published : 1997.11.01

Abstract

100% root formation in in vitro cultures was observed regardless of kind and levels of auxin used and explant source. The number of roots/explant was increased in 0.5~1.0 mg/L IAA treatment. Thicker roots were observed with the addition of 9% sucrose compared with medium containing lower sucrose concentrations. Paclobutrazol and chlormequat had no effect on tuberization of formed roots but slightly increased the number of root. In in vivo rooting, soaking of regenerated shoot cuttings to 100 mg/L IBA for 15 to 60 minutes was found effective. Treatment of 0.1% IBA rooting powder and planting in rooting medium composred of vermiculite(1) : perlite(1) gave 100% rooting and survival.

기내에서 증식된 다수의 지황(Rehmania glutinosa)신초를 가장 효율적으로 발근시키기 위해서 기내 및 기외발근 실험을 수행하였다. 오옥신의 종류와 농도를 달리하여 신초와 마디조직을 배양해본 결과 발근율은 거의 100%에 달하였으며 IAA 0.5~1.0 mg/L 처리구에서 절편체당 뿌리형성수가 가장 많았다. 배지내 당의 농도가 증가할수록 신초의 생장은 현저히 감소하였으나 발근율은 100%에 달하였고 형성된 뿌리의 굵기가 커지는 경향이였다. paclobutrazol과chloromequat를 처리해본 결과 마디나 신초조직에 관계없이 발근율은 거의 100%에 달하였으며 절편체당 근형성수도 억제제의 농도에 크게 영향을 받지 않았으며 신초조직에서는 5~7개, 마디조직에서는 3.5~5.0개가 형성되었다. 기외발근시에는 100ppm의 IBA용액에 15분~시간 침지처리하는 것이 타 농도보다 절편체당 근형성수가 증가하였다. 분말로된 발근촉진체를 이용한 경우 신초기부 절단면에 IBA 0.1%를 분말처리하여 버미큘라이트와 퍼얼라이트가 1:1로 혼합된 삽목상에 삽목하는 것이 생존율 및 발근율이 100%에 달하였다.

Keywords

References

  1. Plant propagation by tissue culture George EF;Sherrington PD
  2. J. Kor. Soc. Hort. Sci. v.33 Effect of Treating methods of NAA and IBA on Rooting of Gypsophila paniculata by Cutting Han BH;Paek KY;Choi JK
  3. J Agr Met v.42 Environmental control for acclimation of in vitro cultured plantlets, 1. Development of the acclimatization unit for acclcerating the plantlet growth and the test cultivation Kozai T;Hayashi M;Hirosawa Y;Kodama T;Watanabe I
  4. Transplant production system The in vitro environment and its control in mocropropagation Kozai T;Fujiwara K;Hayashi M;Aitken-Cheiste J;K Kurata(ed.);T Kozai(ed.)
  5. Cell culture and somatic cell genetics of plants v.8 Current methods of commercial micropropagation Kurt SL;Hartman RD;Chu IYE;IK Vasil(ed.)
  6. HortScience v.15 Propagation of Gypsophila paniculata from cuttings Kussey WE Jr;Weiler TC
  7. IAPTC Newletter v.59 Progress in reducing the cost of micropropagation Levin R;Vasil IK
  8. Tissue culture as a plant prodution system for horticultural crop Plug systems for micropropagules McCown DD;RH Zimmemman(ed.)
  9. Potato Res v.28 Tuberization in potato at high temperature, response of physiologically young plants to disbudding and growth inhibitors Menzel CM
  10. Proc. Southeast Asian Regional Workshop on propagation Techiques for commercial crops of the tropics In vitro growth control of horticultural plants by manipulation water potential of media with sucrose, mennitol and agar, In Adapted micropropagation techniques for commercial crops of the tropics Paek KY;Whang JK
  11. The use of auxins in the rooting of woody cuttings Thimann KV;Behnke-Rogers J
  12. Am. Potato J v.59 In virtro mass tuberization and virus-free seed potato production in Taiwan Wang PJ;Hu CY