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首页> 外文期刊>Canadian Journal of Pure and Applied Sciences >GROWTH AND HEAVY METAL UPTAKE IN B. JUNCEA L. SEEDLINGS AS AFFECTED BY BINARY INTERACTIONS BETWEEN NICKEL AND OTHER HEAVY METALS
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GROWTH AND HEAVY METAL UPTAKE IN B. JUNCEA L. SEEDLINGS AS AFFECTED BY BINARY INTERACTIONS BETWEEN NICKEL AND OTHER HEAVY METALS

机译：镍和其他重金属之间的二元相互作用对B菜幼苗的生长和重金属​​吸收的影响

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摘要

Interactive effects of Ni in binary combinations with other heavy metals (Mn, Co, Cu, Cr and Zn) were investigated on the growth of B. juncea L. seedlings. There was a decline in germination percentage, root and shoot lengths and dry weight of the seedlings with increase in concentrations of the metals in the growth medium. Multiple regression interaction models revealed that in all the binary combinations of Ni with other heavy metals, both the metals were detrimental to the seedling growth. However, the metals in combinations mutually decreased the toxicity of each other. Zn acted antagonistic to Ni and increased the germination percentage of B. juncea seeds. Zn and Mn were accumulated to the extent of 0.531 and 0.445 mg g -1 dw respectively at 100mg l -1 concentration of these metals, whereas the lowest uptake was observed for Ni (0.135 mg g -1 dw) at a concentration of 100 mg l -1 . In binary combinations, (Ni+Cr), (Ni+Mn), (Ni+Co), (Ni+Cu) and (Ni+Zn), both the metals mutually inhibited the uptake of each other.
机译：研究了Ni与其他重金属（Mn，Co，Cu，Cr和Zn）的二元组合对B. juncea L.幼苗生长的相互作用。随着生长培养基中金属浓度的增加，发芽率，根和茎长度以及幼苗的干重均下降。多元回归相互作用模型表明，在镍与其他重金属的所有二元组合中，两种金属均对幼苗生长有害。然而，金属的组合相互降低了彼此的毒性。锌对镍具有拮抗作用，并增加了芥菜种子的发芽率。在100mg l -1浓度的这些金属中，Zn和Mn的累积量分别为0.531和0.445 mg g -1 dw，而在100 mg的浓度下，Ni的最低吸收量为0.135 mg g -1 dw。 l -1在（Ni + Cr），（Ni + Mn），（Ni + Co），（Ni + Cu）和（Ni + Zn）的二元组合中，两种金属相互抑制彼此的吸收。

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