Gibberellin과 Ethrel 處理가 담배苗의 뿌리生育에 미치는 影響 = Effects of Gibberellin and Ethrel Treatment on the Root Growth of Tobacco Seedlings

다국어 초록 (Multilingual Abstract)

This experiment was conducted to study the effects of gibberellin and ethrel treatment on the root growth of Hicks tobacco seedlings.
The number of secondary root emerged in 15 days after gibberellin treatment decreased in the gibberellin 50, 100 and 200ppm plots, and the higher gibberellin content was, the greater the decrease was. Elongation of secondary root was effected by gibberellin treatment as same tendency as the number of secondary roots.
The number of secodary root decreased also in 500 dilution of ethrel plot, but increased slightly in 2000-4000 dilution of ethrel plots. Elongation of secondary root was inhibited markedly in each ethrel treatment plot, and the higher ethrel content was, the more elongation of the root inhibited extremely.

목차 (Table of Contents)

• Ⅰ.實驗材料 및 方法
• Ⅱ.實驗結果 및 考察
• 1.發根力과 支根의 伸長生長
• 2.地下部의 生育狀況
• Ⅲ.摘要