• Journal of Life Science
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• v.8 no.6
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• pp.702-710
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• 1998

The perillas were cultivated to investigate for the small metal ion effect on the harvest of perilla loaves in aquicul-ture system in the constant flow rate. The perillas were und-ergrown at the condition of low concentration of KNO$_3$and NH$_4$ H$_2$ PO$_4$as below 270ppm and 152ppm respectively. The high concentration of the metal and non-metal ca-tions of $Ca^{2+}$, $K^+,NH^{4+},Mn^{2+},Zn^{2+},Cu^{2+},Na^+,Mo^{+6}$ are influenced to the growth of plant length of perillas at the earlier time. The low concentration of the metal cations of $Ca^{2+}, K^+, NH^{4+}, NO_3^-, H_2PO_4^-$ are influenced to lower growth of perillas. The concentration of the cations of $Ca^{2+}, K^+$and $NH_4^+$ and the anions of $NO_3^-$and $H_2PO_4^-$ are affected the growth of leaf length and width of leaf of perillas. The spectoscopic analytical results showed that the perillas were growing rapidly in the period of 6 days from June 7 to June 12 by high amount of $Mg^{2+}$ ion with accumulation inside perillas. The crude protein, the crude fat and the hydrocarbon are accumulated in the leaves of perillas by binding the inorganic with amino acids to provide the nutritions needed for growth of perillas.