Differentiation of Underground Organ in Yellow Nutsedge = 多年生雜草 Yellow Nutsedge의 地下莖 分化에 關한 硏究

다국어 초록 (Multilingual Abstract)

多年生雜草 Yellow Nutsedge (Cyperus esulentus L.)의 地下莖 分化程度를 究明코저 光度32,000lux, 晝夜溫度가 30-25℃ 및 日長이 16時間과 12時間으로 維持되는 人工植物生長實에서 生長中에 있는 Yellow Nutsedge에 Cytokinin(SD 8339), GA, N, Cytokinin plus GA, Cytokinin plus N, GA 및 Cytokinin plus N의 水準을 달리하여 處理한 結果 全體의 地下莖水는 長短日의 處理에 依하여 影響을 받지 않았으나 短日處理에서는 GA가 長日下에서는 Cytokinin plus GA 및 N 處理등이 가장 높은數의 地下莖을 生産하였다. 短日條件은 特히 地下莖의 分化를 促進시켰으며 塊經形成은 底濃度의 二次分枝로의 分化는 Cytokinin 處理에서 컷었다.

다국어 초록 (Multilingual Abstract)

The effect of the cytokinin, SD 8339 [N-benzylamino-9 (terahydropyran-2yl)-9 H-purine] and GA (Gibberellic acid), N (nitrogen), SD 8339 plus GA and SD 8339 plus N on rhizome differentiation of yellow nutsedge (Cyperus esculentus L.) was investigated in controlled-enviroment chambers, having 12hr and 16hr photoperiods, 30-25℃ temperature and 32,000 lux of light intensity. The total underground organ production was higher with GA under 12hr, and with SD 8339 plus GA and with low N treatments under 16hr photoperiod. Particulary, under short photoperiod, SD 8339 and N treatments favored rhizome differentiation, showing more rhizomes differentiated to shoots with SD 8339 and more rhizomes differentiated to tubers with low level of N treatemtnt.