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首页> 外文期刊>Fresenius Environmental Bulletin >CADMIUM AND LEAD ACCUMULATIONS BY TYPICAL CULTIVARS OF WATER SPINACH UNDER DIFFERENT SOIL CONDITIONS
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CADMIUM AND LEAD ACCUMULATIONS BY TYPICAL CULTIVARS OF WATER SPINACH UNDER DIFFERENT SOIL CONDITIONS

机译：典型土壤在不同土壤条件下镉和铅的累积量

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摘要

The typical cultivars of water spinach (Ipomoea aquatica Forsk.) with different Cd-accumulating abilities (two Cd-PSCs, cv. Qiangkunliuyeqinggu (QLQ) and cv. Qiangkunliuyebaigu (QLB), and one non-Cd-PSC, cv. Taiwan 308 chunbailiuye (T308)) were used to investigate Cd and Pb accumulations under different soil conditions. Variations of biomasses (DW) of both shoots and roots from cultivars were significant (p<0.001). Average Cd concentrations in shoots in both the first and second harvest were in the order of T308 > QLB > QLQ, while those in roots of cv. QLQ and cv. QLB were mostly high. The average shoot Cd concentrations in the Cd-PSCs were always lower than in the non-Cd-PSCs unrelated to soil conditions and harvest timings, indicating that the variation in Cd accumulation among cultivars is genotype-dependent and less affected by soil properties. The average values of Cd TRs and TFs were lower in the Cd-PSCs than in the non-Cd-PSC, suggesting that Cd accumulation in different cultivars is associated with the ability of Cd uptake from soil to plant as well as translocation from root to shoot. Variation of shoot Pb concentration in cultivars was not significant (p > 0.05) for both the first and second harvests, indicating that the variations in Pb accumulation among the tested cultivars are much smaller than those in Cd accumulation. It was found that among the detected soil variables, soil pH, soil CEC and total and available P could be raised as the crucial factors affecting Pb accumulation in shoots of water spinach.
机译：具有不同Cd累积能力的水菠菜（Ipomoea aquatica Forsk。）的典型品种（两种Cd-PSC，cv。强昆六叶青谷（QLQ）和cv。Qiangkunliuyebaigu（QLB），一种非Cd-PSC，cv。台湾308用春白柳六叶（T308）研究了不同土壤条件下镉和铅的积累。品种的芽和根的生物量（DW）差异均显着（p <0.001）。第一次和第二次收获的芽中镉的平均浓度按T308> QLB> QLQ的顺序排列，而cv根中的平均浓度为。 QLQ和简历。 QLB大多很高。与土壤条件和收获时间无关的Cd-PSCs中的平均芽镉含量始终低于非Cd-PSCs，这表明品种间Cd积累的变化是基因型依赖性的，并且受土壤特性的影响较小。 Cd-PSCs中Cd TRs和TFs的平均值低于非Cd-PSC中的Cd，这表明不同品种中Cd的积累与Cd从土壤向植物的吸收能力以及从根向土壤的转运有关。射击。第一次和第二次收获的品种中铅Pb浓度的变化均不显着（p> 0.05），这表明受试品种中Pb积累的变化远小于Cd积累的变化。结果表明，在检测到的土壤变量中，土壤pH，土壤CEC，总磷和有效磷可作为影响菠菜中铅积累的关键因素而提高。

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  • 来源
    《Fresenius Environmental Bulletin》 |2010年第2期|190-197|共8页
  • 作者

    Yulian Gong; Jiangang Yuan; Zhongyi Yang; Yihui Zhou; Baoyu Lu; Junli Wang;

  • 作者单位

    State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China Department of Biology, Guangdong Institute of Education, Guangzhou 510303, China;

    State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China;

    State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China;

    State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China;

    State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China;

    Resources and Environment College, Qingdao Agricultural University, Qingdao, 266109, China;

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  • 正文语种 eng
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  • 关键词

    water spinach (Ipomoea aquatica Forsk.); cadmium (Cd); lead (Pb); multiple soil contamination; pollution-safe cultivar (PSC);

    机译：菠菜（Ipomoea aquatica Forsk。）;镉（Cd）;铅（Pb）;多种土壤污染;污染安全品种（PSC）;

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