??C追跡子法에 依한 柑橘의 糖과 有機酸에 關한 硏究 : Effects of Foliar Application of ?? ??의 葉面處理效果 = Studies on the Sugar asnd Organic Acid in Fruits of Citrus unshiu Marc by ??C Tracer Method

국문 초록 (Abstract)

柑橘(Citrus unshiu Marc.)의 糖, 有機酸 및 아미노酸에 대한 ??의 영향을 보기 위하여 KCI과 K₂SO₄溶液을 葉面處理하고 ?? 를 同化시킨 뒤 ??C로 標識된 同化産物의 徑時的 變化를 3週間 調査하였다.
?? 處理後 1週日間 果實에 轉流된 ??C 同化産物의 比放射能(cpm/㎖)은 ?? 處理區에서 더컸다. 果汁의 糖分劃 放射能은 그 水準과 變化樣相이 ?? 處理間에 差異가 없었지만, 有機酸分劃에 있어서는 ?? 處理後 2週日 以後에 有機酸分劃의 比放射能 減少量이 ?? 處理區에서 더 많았다. 有機酸分劃의 比放射能에 對한 糖分劃比放射能의 比率이 SO?? 處理區에서는 時間이 경과함에 따라 增加하는 경향이었으나 ?? 處理區는 급격히 減少했다. 따라서 ??가 ??보다 果汁의 甘味比를 증가시키는 것으로 생각되었다. 아미노산分劃의 比放射能은 ?? 處理區보다 ?? 處理區에서 더 많이 增加했다.

다국어 초록 (Multilingual Abstract)

The effects of spraying ?? solutions on sugar, organic acid and amino acid levels in citrus(C. unshiu Marc.) fruit juice were examined using the ?? method. Each ?? compound under investigation was measured during the three weeks after ??assimilation. The total carbon compound, which was measured as the specific activity (cpm/㎖) of ??, was transported more into the fruit juice within one week after ??assimilation with the SO treatment than with the ?? treatment. The ?? activity changes of the sugar fraction were very similar in both ?? and ?? treatments although the organic acid fraction was reduced more by ??. The specific activity ratio of the sugar fraction to organic acid was increased rapidly when treated with ??. This indicates that ?? plays a role in raising the ratio of sugar to organic acid. It was found that the ?? activity in the amino acid fraction was higher when ?? was applied.