生物炭可改善绿豆(Vigna radiata L. Wilczek)中铅和镉诱导的应激反应

Q2 Environmental Science
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引用次数: 0

摘要

铅(Pb)和镉(Cd)是众所周知对植物有潜在危害的微量元素。它们的毒性可导致氧化伤害增加、植物新陈代谢紊乱和植物结构变形。生物炭(BC)作为一种土壤改良剂,可有效减轻受污染土壤中这些重金属的毒性。为了研究向日葵残留物制成的生物炭对减少绿豆(Vigna radiata L. Wilczek)中铅和镉诱导的应力的影响,我们在温室条件下进行了一项基于完全随机设计的因子实验,共有三次重复。试验因子包括三个水平的铅(以 Pb (NO3)2 计,分别为 0、100 和 200 mg kg-1)、三个水平的镉(以 Cd (NO3)2 计,分别为 0、10 和 20 mg kg-1 土壤)和三个水平的 BC(以重量计,分别为 0、1 和 3%)。结果表明,铅和镉诱导的胁迫降低了所有生长特性,如芽和根的干重以及活性根瘤的数量。在不施用 BC 的情况下,200 毫克/千克铅和 20 毫克/千克镉处理中的可溶性糖(0.46 毫克/千克-1)和脯氨酸含量(44.7 微摩尔/克-1)最高。此外,施用萃取物后,芽中的铅和镉浓度分别降低了 19.1 % 和 13.8 %,所有生长性状均有所提高。因此,建议施用由向日葵残留物制成的萃取物,作为一种有前景且环保的方法来改善绿豆中由铅和镉引起的胁迫。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Biochar improves Pb and Cd-induced stress in mung bean (Vigna radiata L. Wilczek)

Lead (Pb) and cadmium (Cd) are trace elements known for their potential harm to plants. Their toxicity can lead to increased oxidative harm, disturbance in plant metabolism, and deformation in plant structure. Biochar (BC), when utilized as a soil amendment, demonstrates effectiveness in mitigating the toxicity of these heavy metals in polluted soils. To investigate the effects of BC made from sunflower residues on reducing Pb- and Cd-induced stresses in mung bean (Vigna radiata L. Wilczek), a factorial experiment was conducted based on a completely randomized design with three replications in greenhouse conditions. The factors included Pb at three levels (0, 100, and 200 mg kg-1 as Pb (NO3)2), Cd at three levels (0, 10, and 20 mg kg-1 soil as Cd (NO3)2), and BC at three levels (0, 1, and 3 % by weight). The results showed that Pb and Cd-induced stresses reduced all growth characteristics, such as shoot and root dry weights and the number of active root nodules. Maximum soluble sugars (0.46 mg kg-1) and proline content (44.7 µmol g-1) were observed in 200 mg kg-1 of Pb and 20 mg kg-1 of Cd treatment without BC. Also, the application of BC reduced the concentration of Pb and Cd in the shoot by 19.1 % and 13.8 %, respectively, and increased all growth traits. Therefore, the application of BC made from sunflower residues is recommended as a promising and environmentally friendly approach to improves Pb and Cd-induced stress in mung beans.

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来源期刊
Environmental Challenges
Environmental Challenges Environmental Science-Environmental Engineering
CiteScore
8.00
自引率
0.00%
发文量
249
审稿时长
8 weeks
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