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- W2363069939 abstract "The change trends of six growth indexes including number,length and biomass(dry weight) of leaf and root of Iris sanguinea Donn ex Horn.and I.ensata Thunb.var.hortensis Makino et Nemoto in soil with Cu additions of 0(CK),200,400,600,800 and 1 000 μg·g-1 were studied by soil culture method,and Cu content and accumulation in leaf and root,Cu accumulation in whole plant,Cu enrichment and translocation coefficients of the two plants were analyzed comparatively.The results show that with rising of Cu addition in soil,root number of I.sanguinea decreases gradually and significantly lower than that of the control,while other five growth indexes of I.sanguinea and six growth indexes of I.ensata var.hortensis all generally appear the change trend of increasing gradually and significantly higher than those of the control under low Cu addition conditions,decreasing gradually and significantly lower than those of the control under high Cu addition conditions.In which,growth of the two plants in soil added with 1 000 μg·g-1 Cu is inhibited significantly(P0.05),but adding 400 and 600 μg·g-1 Cu has a certain promotive effect on growth of the two plants,respectively.Cu content in leaf and root of I.sanguinea and I.ensata var.hortensis all increases gradually with rising of Cu addition in soil.Cu enrichment and translocation coefficients of I.sanguinea and Cu enrichment coefficient of I.ensata var.hortensis all are significantly lower than those of the control,while Cu translocation coefficient of I.ensata var.hortensis is higher or lower respectively than that of the control under low or high Cu addition conditions with a trend of decreasing gradually.In soil added with Cu,Cu accumulation in leaf,root and whole plant of I.sanguinea is lower than that of I.ensata var.hortensis,but all of them are significantly higher than that of the control,and Cu content and accumulation in root of the two plants are higher than that in leaf,showing that I.sanguinea and I.ensata var.hortensis both have a certain accumulation ability to Cu,and being mainly accumulating in root,Cu accumulation ability of I.ensata var.hortensis is better than that of I.sanguinea.The comprehensive analysis results show that I.sanguinea and I.ensata var.hortensis are not hyper-accumulators,but still have some resistance to Cu stress,and resistance of I.ensata var.hortensis is slightly stronger than that of I.sanguinea.The two plants are suitable to plant in soil with Cu content lower than 400 and 600 μg·g-1,respectively,and they can be used to phytoremediation and environmental beautification in light and moderate Cu polluted soils." @default.
- W2363069939 created "2016-06-24" @default.
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- W2363069939 date "2011-01-01" @default.
- W2363069939 modified "2023-09-23" @default.
- W2363069939 title "Growth status of Iris sanguinea and I. ensata var. hortensis in Cu polluted soil and their accumulation and translocation abilities to Cu" @default.
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