Liatris Spicata 球莖休眠에 關한 硏究 : I. 休眠導入期 및 覺醒期 究明과 gibberellin ?理의 休眠打破效果 Ⅰ.Study on the Induction and Awakening of Dormancy and Effect of Gibberellin Treatment on the Breaking of Dormancy = Studies on the Dormancy of Liatri8 8picata Corm

국문 초록 (Abstract)

Liatris spicata 球莖의 休眠導入期 및 休眠覺醒期를 調査함과 同時에 GA處理에 依한 休眠打破效果를 調査한 結果는 다음과 같다.
1. 萌芽率, shooting率 및 發根率은 8月 30日 以後 서서히 低下되어 11月 14日頃 가장 낮은 傾向을 보이다가 以後 서서히 增加하여 1月 29日 以後에는 모두 100%로써 매우 良好하였다.
2. 出芽所要日數에 있어서도 11月 14日 無處理區에 있어서 10.1日로써 가장 길었으며 1月 29日 以後에는 急激히 短縮되었다.
3. 萌芽 및 shooting 狀態를 봐서 大邱地方의 露地에서 Liatris spicata 球莖의 休眠導入期는 9月 下旬頃, 休眠期는 11月 中旬頃, 休眠覺醒期는 1月 下~2月 初旬頃이라고 思料된다.
4. 球莖의 休眠打破效果는 GA 200ppm 1時間浸漬處理로 效果가 認定되었으며 特히 休眠이 깊을수록 그 效果는 더욱 增加되는 傾向을 보였다.

다국어 초록 (Multilingual Abstract)

This study was conducted to clarify the period of induction and awakening of Liatris spicata corm dormancy, and investigated effect of gibberellin treatment on the dormancy break of corm.
The results were obtained as follows ;
1. Ratio of sprouting, shooting and rooting were gradually declined after August 30. These ratio showed the lowest to trend on November 14 during experiment and gradually increased after this time. Ratio were excellent as 100% after January 29.
2. Also, average days for sprouting were the longest on the November 14, but it was rapidly declined after January 29.
3. The period of induction and awakening of corm dormancy were late in September and from late January to early February, respectively, in Daegu, Korea.
4. Effects of GA-treatment on the dormancy break of corm were excellent. Especially, its effects on the dormancy break were the deeper in degree of dormancy, the better.