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자료유형
학술저널
저자정보
성민웅 (경상대학 과학교육과)
저널정보
한국식물학회 식물학회지 식물학회지 제19권 제1호
발행연도
1976.1
수록면
1 - 6 (6page)

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This study was carried out to investigate the formation of precipitates between lead ion and the essential anions of plants, the effects of lead concentration on seed germination and plant growth in water and soil culture, and the germinating and growing recovery of inhibited seed germination and plant growth by lead. Four kinds of the seeds (Glycine max M., Triticum vulgare V., Setaria viridis (L) P. De Beauvois, and Digitoria sanguinalis (L) Scopoli var) were germinated and growth in water and soil culture included the different concentrations of lead for five days. The seeds and plants inhibited germination and growth by lead were transferred to lead free Hoagland solution and the growing recovery was observed. The precipitates of lead ion were observed in the solution of both acidity and alkalinity included each anion of $H_2PO_4^-, HPO_4^{2-}, PO_4^{3-}, SO_4^{2-} and MoO_4^{2-}$ in a room temperature, whereas the precipitates between lead ion and other anions were observed largely in the solution of alkalinity, so that it seemed that lead could be remained in the state of non-soluble in plant and soil. The inhibition of germination and growth in the water culture was observed in 100ppm of lead, whereas the inhibition in the case of the soil culture was observed in 10000ppm of lead. The difference of the effected concentration between water and soil culture in germination and the growth was 100 times. When the seed and plant inhibited the growth in 5000ppm or 10000ppm of lead for five days were transferred to lead free Hoagland solution, the recovery of germination and growth was observed in three days. This growing recovery was different according to the kinds of plant and concentrations of lead. It seemed that plant growth could be inhibited by the inhibition of the metabolism concerned with the precipitates between lead iion and other anions.

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