Phytoextraction of cadmium by rice (Oryza sativa L.), soybean (Glycine max (L.) Merr.), and maize (Zea mays L.)
Phytoextraction of cadmium by rice (Oryza sativa L.), soybean (Glycine max (L.) Merr.), and maize (Zea mays L.)
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DOI：
10.1016/j.envpol.2006.03.038
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发表时间：
2007-01-01
影响因子：
8.9
通讯作者：
Ishikawa, S.
中科院分区：
文献类型：
--
作者：
Murakami, M.;Ae, N.;Ishikawa, S.
根据植物与机械化栽培技术的兼容性来选择具有高镉积累能力的植物提取植物，可能比根据对镉的高耐受性进行选择会产生更直接的实际效果。水稻（Oryza sativa L.，cv. Nipponbare 和 Milyang 23）、大豆（Glycine max [L.] Merr.，cv. Enrei 和 Suzuyutaka）和玉米（Zea mays L.，cv. Gold Dent）在一种 Andosol 和两种 Fluvisols 上生长，镉污染浓度范围为 0.83 至 4.29 mg Cd kg(-1)，期间置于温室内的花盆 (550 mL) 中 60 天。地上部镉吸收量如下：Gold Dent < Enrei 和 Nipponbare < Suzuyutaka 和 Milyang 23。Milyang 23 收获后的几种土壤 Cd 组分下降最多。密阳23在其地上部积累了土壤总镉的10-15%。因此，密阳23号水稻有望用于从低污染水平的水稻土中植物提取镉。 (c) 2006 Elsevier Ltd. 保留所有权利。
Selecting a phytoextraction plant with high Cd-accumulating ability based on the plant's compatibility with mechanized cultivation techniques may yield more immediately practical results than selection based on high tolerance to Cd. Rice (Oryza sativa L., cv. Nipponbare and Milyang 23), soybean (Glycine max [L.] Merr., cv. Enrei and Suzuyutaka), and maize (Zea mays L., cv. Gold Dent) were grown on one Andosol and two Fluvisols with low concentration of Cd contamination ranging from 0.83 to 4.29 mg Cd kg(-1), during 60 days in pots (550 mL) placed in a greenhouse. Shoot Cd uptake was as follows: Gold Dent < Enrei and Nipponbare < Suzuyutaka and Milyang 23. Several soil Cd fractions after Milyang 23 harvesting decreased most. Milyang 23 accumulated 10-15% of the total soil Cd in its shoot. The Milyang 23 rice is thus promising for phytoextraction of Cd from paddy soils with low contamination level. (c) 2006 Elsevier Ltd. All rights reserved.