人蔘 世代促進에 關한 硏究 第1報. 人工氣象室 栽培人蔘의 腦頭發達에 關한 組織學的 硏究

Study on the acceleration of breeding cycle of ginseng plant Ⅰ. Histological study on the development of bud of ginseng being cultivated in phytotron

This study was carried out to shorten the period of breeding by acceleration of ginseng generations. The situation of developing and growing of dormancy buds in 2-year-old ginseng being cultivated under phytotron and field condition was surveyed by microtechnique method to determine the proper time for the low-temperature treatment. Differentiation times of dormancy buds of ginseng being cultivated in phytotron and field were similar to each other. Dormancy buds were jutted out to epidermis of root in the early of June, and separated to inner and outer husk. And also, in these time stem tissue was differentiated in the dormancy bud. Development of stem and leaf in the bud was completed in the early of September, but organs of flower were completed in the middle of September. Growth of bud was accelerated after August, and Complete formation of the new bud was taken about 5 months after sprout had emerged.