Effect of Plant Growth Regulator Treatments on the Growth and Lateral Root Formation in Soybean Sprouts - 2. Effect of Plant Growth Regulator Treatment on the Ethylene Evolution in Soybean Sprouts

생장조절물질(生長調節物質) 처리(處理)가 콩나물의 생육(生育) 및 세근발생(細根發生)에 미치는 영향(影響) - II. 생장조절물질(生長調節物質) 처리(處理)가 콩나물의 ethylene 발생(發生)에 미치는 효과

This experiments were conducted to investigate the effect of plant growth regulator treatments on the ethylene evolution in soybean sprouts. Major results can be summarized as follows. 1. IAA showed no significant effect on the ethylene evolution in soybean sprouts. 2. BA increased significantly ethylene evolution while kinetin, zeatin, zeatin riboside were less effective on the ethylene production in soybean sprouts. 3. As the BA concentration was increased, the ethylene evolution was increased. 4. BA increased ethylene production more effectively at earlier stages while 4PU-30 was more effective for ethylene production rather continuously. 5. The order of effectiveness of cytokinins and auxin on the ethylene evolution was as follows : BA 25 ppm>BA 25ppm+IAA 25ppm${\geq}$4PU-30 25ppm>IAA 25ppm>control. 6. It can be concluded that BA was the most effective in inhibiting lateral roots, among the cytokinins tested, and resulted in the biggest diameter of hypocotyl by the ethylene evolution stimulated by BA treatment.

생장조절물질(生長調節物質)의 처리(處理)가 콩나물의 ethylene 발생(發生)에 미치는 효과(效果)에 관(關)하여 연구(硏究)한 결과(結果)를 요약(要約)하면 다음과 같다. 1. 콩나물의 ethylene 발생(發生)에 미치는 auxin의 처리(處理)는 뚜렷한 영향(影響)이 보이지 않았다. 2. 콩나물의 ethylene 발생(發生)에 미치는 cytokinin 및 유사물질(類似物質)의 처리효과(處理效果)는 BA가 ethylene 발생(發生)을 크게 촉진(促進)시킨 반면(反面) kinetin, zeatin, zeatin riboside는 미미(微微)하였다. 3. 콩나물의 ethylene 발생(發生)에 미치는 BA 농도별(濃度別) 처리효과(處理效果)는 농도(濃度)가 높을 수록 ethylene 발생(發生)이 증가(增加)되었다. 4. BA의 처리(處理)는 단기간내(短期間內) ethylene 발생(發生)을 증가(增加)시켜서 신장억제(伸長抑制)와 비대촉진(肥大促進) 효과(效果)를 보이나 4PU-30은 ethylene 발생(發生)을 지속적(持續的)으로 증대(增大)시키는 효과(效果)를 보였다. 5. 생장조절물질(生長調節物質)이 처리(處理)된 콩나물에서의 ethylene 발생정도(發生程度)는 BA 25ppm > IAA 25 + BA 25 ppm ${\geq}$ 4 PU-30 25 ppm > IAA 25 ppm > control 순(順)이었다. 6. 콩나물의 세근발생(細根發生)은 cytokinin 중(中) BA에 의(依)해 억제(抑制)되며, 비대촉진(肥大促進)은 ethylene에 의해 촉진(促進)되는데, BA는 ethylene 발생(發生)을 크게 촉진(促進)시켰다.