To investigate the effects of ozonated water concentration and soaking time on adventitious root formation of willow, we studied the efficiency of root cuttings in the revegetation technology of biological engineering of willows. The ozonated water concentrations were used for 5 minutes and 2 hours at 1, 5, 10, 15, 20 ppm by soaking method and then the shoot characteristics were observed. The number and length of adventitious roots were determined. The results indicated that 20 ppm of ozonated water for 2 hours and 1 ppm of ozonated water for 5 minutes resulted in leaves turned wither away and no adventitious root production. Considering the appearance, number and length of the adventitious root, soaking willow cuttings into the ozonated water with dissolved ozone concentration, 5 ppm for 2 hours and 10-15 ppm for 5 minutes were suitable for generating adventitious roots.

Abstract
서 론
재료 및 방법
    1. 실험 재료 및 재배 환경
    2. 부정근 조사
    3. 통계분석
결과 및 고찰
    1. 부정근 발생
    2. 부정근의 개수 및 길이
적 요
Literature Cited

• 김선우(충남대학교 바이오 AI 융합학과 대학원생) | Sun Woo Kim (Graduate Student, Department of Bio-AI Convergence, Chungnam National University, Daejeon 34134, Korea)
• 박하규(웨코 대표이사) | Ha Kyu Park (CEO, WECO, 128-113, Wolsan-ro, Eumbong-myeon, Asan 31416, Korea)
• 황규백(웨코 연구소장) | Gyu Baek Hwang (Chief Technology Officer, WECO, 128-113, Wolsan-ro, Eumbong-myeon, Asan 31416, Korea)
• 박종석(충남대학교 농업생명과학대학 원예학과 교수,충남대학교 바이오 AI 융합학과 교수) | Jong Seok Park (Professor, Department of Horticultural Science, Chungnam National University, Daejeon 34134, Korea , Professor, Department of Bio-AI Convergence, Chungnam National University, Daejeon 34134, Korea) Corresponding author