Cadmium accumulation, translocation, and assessment of eighteen Linum usitatissimum L. cultivars growing in heavy metal contaminated soil
Cadmium accumulation, translocation, and assessment of eighteen Linum usitatissimum L. cultivars growing in heavy metal contaminated soil
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DOI：
10.1080/15226514.2019.1683714
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发表时间：
2019
影响因子：
3.7
通讯作者：
Yufu Wang
中科院分区：
文献类型：
--
作者：
Yuan Guo;Caisheng Qiu;Songhua Long;Hui Wang;Yufu Wang
Flax (Linum usitatissimum L.) is suitable for growing in heavy metal polluted soil for non-food purposes and can be used as potential crops for cleaning the soil from heavy metals. The main.objective of this study was to investigate flax/linseed phytoextraction of cadmium (Cd), including.uptake, translocation, and accumulation differences in organs among flax/linseed cultivars. A field.experiment was carried out in Cd contaminated field of Chinese southern area with nine flax, one.dual-purpose, and eight linseed cultivars. Cd concentrations in plant organs (root, xylem, phloem,.and capsule) and biomass of different organs of each cultivar were measured and evaluated..Significant differences in Cd concentration and accumulation among organs were observed. The.most Cd was accumulated by phloem, which was 2 4 times more than other organs, followed.by roots, xylems and capsules played a comparably smaller role. The uptake of Cd by flax/linseed.from per hectare was calculated and had highly significant positive correlation with biomass..Phloem accumulated 45 55% of total Cd from the soil by the plant. Among testing 18 flax/linseed cultivars, one flax cultivar (Zhongya 1), and two linseed cultivars (Y2I329 and Y2I330), which.extracted more than 60 g ha1, can be considered as Cd accumulators for phytoremediation of Cd.contaminated soil.
