Background : According to medicinal plant standard culture, flower organ should be removed but there is no detail information on flower organ removal in Atractylodes macrocephala Koidzumi. This study was carried out to examine effect of flower organ removal on the increase of roots yield in Atractylodes macrocephala Koidzumi. Methods and Results : ○ Experiment variety : Atractylodes macrocephala Koidzumi. ○ Treatment : ① Flower organ non-cutting ② Flower organ cutting ○ Planting date : April, 2015/ April 25, 2016 ○ Planting distance : 30×20cm/ 30×15cm ○ Experiment place : Ginseng & Medicinal Plant Research Institute(Geumsan-gun, Chungcheongnam-do) Conclusion : The fresh rhizome yield of F. O. C. at a bud treatments were increased 21.0% ∼50.0% compare to F. O. N. C. treatments. The fresh rhizome yield of F. O. C. at a flower treatments were increased 17.4%∼34.6% compare to F. O. N. C. treatments. The fresh weight of above-ground parts of F. O. C. treatments were decreased 77.2%∼65.7% compare to F. O. N. C. treatments. F. O. C.(=Flower organ cutting) / F. O. N. C.(=Flower organ non-cutting).

• Seung Ho Han(Ginseng and Medicinal Plant Research Institute, CNARES) | 한승호 Corresponding author
• Su Dong Kim(Ginseng and Medicinal Plant Research Institute, CNARES) | 김수동
• Bong Jae Seong(Ginseng and Medicinal Plant Research Institute, CNARES) | 성봉재
• Sun Ick Kim(Ginseng and Medicinal Plant Research Institute, CNARES) | 김선익
• Ka Soon Lee(Ginseng and Medicinal Plant Research Institute, CNARES) | 이가순
• Moo Geun Jee(Ginseng and Medicinal Plant Research Institute, CNARES) | 지무근
• Gwan Hou Kim(Chungcheongnam-do Agricultural Research and Extension Services) | 김관후
• Young Hwan Yoon(Chungcheongnam-do Agricultural Research and Extension Services) | 윤영환
• Hyun Ho Kim(Ginseng and Medicinal Plant Research Institute, CNARES) | 김현호