床替密度가 삼나무苗의 生長에 미치는 影響 = Influence on Growth of Japanese Ceder(Cryptomeria Japonica D. Don) Seedling by Transplanting Density

국문 초록 (Abstract)

삼나무 1-1苗를 生産하는데 보다 더 效果的인 방법을 摸索하고자 本大學의 苗圃場에서 삼나무 1年生苗를 密度別로 床替하여 生長狀態를 試驗한 結果를 要約하면 다음과 같다.
1. 床替密度가 낮은 C區, D區 및 E區는 床替密度가 높은 A區 및 B區보다 苗高生長이 좋았다.
2. 根元徑生長도 C區, D區 및 E區가 좋았다.
3. 床替密度가 높은 A區와 B區는 9月과 10月에 苗木이 많이 枯死되었으며, 枯死率도 높았다.
4. 삼나무 1-1苗의 養苗는 合格苗의 得苗本數가 많고 得苗比率이 比較的 높은 C區로 床替하는 것이 1年生苗의 損失이 적고 床替하는 勞動力도 節約된다고 생각된다.

다국어 초록 (Multilingual Abstract)

These studies were carried out investigate the effective way in order to produce 1-1 Japanese Ceder(Cryptomeria japonica D. Don) seedings, and therefore they were transplanted 1-0 Japanese Ceder seedings as each density in this College’s forestry seedbed and the growth were investigated by transplanting density.
The results were summarized as follows.
1. In the case of C. plot, D. plot and E. plot of low transplanting density the height growth was shown better than A. plot and B. plot of high transplanting density.
2. The root caliper growth was also showed to be good in C. plot, D. plot, and E. plot of low transplanting density.
3. In A. plot and B. plot of high transplanting density was dead extremely much on September and October, and withering dead ratio was high.
4. Based on the above- mentiond results, it was concluded that 1-1 Japanese Ceder seedlings should be transplanted in C. plot gaining much seedling by standing test and for that reason the expenses and labors were subtracted by it.