맹글로브와 불수감 삽목시 IBA와 NAA 처리가 생육과 발근에 미치는 영향을 알아보고 실험한 결과는 다음과 같다. 1. 맹글로브 경우 IBA처리시 초장이 컸고 엽수가 많아졌으며 신초장이 증가하였다. 또한 근수가 증했으며 근장이 길어졌는데 고농도 처리보다 저농도 처리시 효과가 컸다. 2. 불수감의 경우 IBA나 NAA처리에 의해 생육이 저하되었으며 고농도 처리시 더욱 단축되었다. 그러나 IBA 1,000 mg·L−1처리시 근경은 굵어졌으며 근중이 무거웠다. 3. 전체적으로 볼 때 맹글로브 및 불수감 모두 발근율은 NAA보다 IBA 처리시, 고농도보다 저농도 처리시 효과적이었다. 특히 NAA 고농도 처리시 수피의 벗겨짐과 물러짐으로 발근율이 현격히 저하되었다.

Background : Acanthopanax divaricatus var. is a Korean woody natural plant which can grow in the field placed in low altitude. Cutting is more efficient for propagation than seedling since it takes 3-years to harvest seeds and get seedling. This study was carried out to find out efficient cutting propagation method. Methods and Results : Hardwood cutting (April 10) and semihardwood cutting (September 7) was performed to accelerate cutting propagation rate on 5 type nursery box soil composed of Sand, vermiculite, peat moss, perlite, and perlite + peat moss. In order to verify growth regulators on cutting propagation, rooton, IBA 2,000 ppm, IBA 3,000 ppm, NAA 500 ppm, NAA 1,000 ppm were treated and cutting performed in sand nursery box soil on March 30 and September 7 with 3 replications of 50 plants. In terms of rooting traits of cutting in April 10 according to nursery box soil, rooting rate was higher as 67% in sand and lower as 11% in peat moss. Root length, root number, and root weight was also higher in sand. In terms of rooting traits of cutting in September 7, rooting rate was higher as 60% in sand and root number was higher in sand and perlite. Root weight was higher in perlite. The result of growth regulator effect on cuttings was as follows. Rooton increased rooting rate higher as 68.7% in cutting on March 30 and IBA 3,000 ppm also increased higher root length, root number, and root weight as 5.4 ㎝, 12.3 ea/plant, 3.13 g/10plant respectively. rooton increased rooting rate higher as 67.3% in cutting on September 7 as same as cutting on March 30 with no significant difference and root length, root number, and root weight were all higher in rooton treatment too. Conclusion : The result of cutting treatment in 5 type nursery box soil on April 10 and September 7 to accelerate cutting propagation rate of A. divaricatus var. shows that sand was most efficient with higher root length, root weight, and rooting rate. Most efficient growth regulator for rooting was rooton with higher rooting rate and better rooting traits altogether same in cuttings on March 30 and September 7.

This study was conducted to enhance the propagation of Acanthopanax divaricatus and Acanthopanax koreanum through different cutting practices. For propagation by cuttings, scions were taken on September 1. This already has hard skin and showed much higher values in terms of root length, root number, rooting ratio and root weight than those taken on June 30 and August 1. Regardless of cutting date, 50% shading resulted to the highest root length, root number, root ratio and root weight. Meanwhile, 95% shading significantly reduced these parameters compared with no shading. These results suggest that over-shading may inhibit root growth. Two growth regulators, IBA (concentration of 1,000, 2,000, 3,000 ppm) and Rootone-F (0.4%) were also tested of its effect to the cuttings. Rootone-F was found to be more effective than IBA. Cutting treated with Rootone-F had slightly higher root length and root number. A. koreanum which grows well in hot climatic condition showed better rooting ability than A. divaricatus.