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자료유형
학술저널
저자정보
저널정보
한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제51권 제3호
발행연도
2018.8
수록면
159 - 168 (10page)

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Cadmium (Cd) uptake and accumulation from soil to plant vary depending on the environment conditions. Here, we studied the chemical properties of Cd-treated soils, the growth-inhibition rates of Cd-exposed oilseed rape plants, the changes in Cd content of soil, and the relationship between Cd bioconcentration factor and Cd accumulation from the soil to oilseed rape organs. Oilseed rape plants were cultivated in a greenhouse under four Cd treatments: 0 (control), 4, 8, and 12 mg kg<SUP>-1</SUP>. A significant positive correlation was found between Cd concentration and available P2O5 or exchangeable K. The Cd concentration for 25% shoot growth inhibition (GR75) was 8 mg kg<SUP>-1</SUP>. Cd content in the root and shoot was positively correlated in the flowering stage of oilseed rape. Bioconcentration factor (BCF)root/soil decreased with Cd concentration and Cd accumulation in the 8 mg kg<SUP>-1</SUP> treatment was higher at flowering stage. Cd accumulation was related to plant biomass and soil Cd concentration. We found that Cd accumulation would be much greater in Cd concentrations that allowed plant growth and development. Thus, a species-specific threshold concentration must be determined based on Cd phytotoxicity for phytoremediation of Cd-contaminated soils.

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ABSTRACT
Introduction
Materials and methods
Results and Discussion
Conclusion
References

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