叶面喷施纳米氧化锌和二氧化锰对小麦镉锌锰吸收和转运的影响
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X173;S512

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徐州市重点科研开发项目(社会发展)(KC21149)和国家重点研发计划项目(2018YFD0800302)资助。


Effects of Foliar Spraying of ZnO and MnO2 Nanoparticles on Uptake and Translocation of Cd, Zn and Mn in Wheat
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Key Scientific Research and Development Projects of Xuzhou City (Social Development) ;National Key Research and Development Program of China

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    摘要:

    采用田间试验考察了叶面喷施3种纳米材料(氧化锌、二氧化锰和氧化锌+二氧化锰)对6个镉低累积小麦品种生长、产量、降镉效果的影响及镉在不同小麦品种中的转移、积累规律。结果表明:6个小麦品种在产量、锌锰含量和吸收量上存在较大差异。叶面喷施3种纳米材料对不同小麦品种的株高均无显著影响,但提高了周麦36和江麦919小麦品种的理论产量,分别使西农619、周麦36、华伟305、盛麦21、江麦919和烟农919小麦籽粒镉含量降低11%~35%、10%~46%、10%~38%、28%~40%、37%~53%和15%~27%;同时,叶面喷施纳米氧化锌显著提高了西农619、周麦36、华伟305、江麦919和烟农919小麦籽粒锌含量4%~20%,叶面喷施纳米二氧化锰显著提高了周麦36、华伟305、江麦919和烟农919小麦籽粒锰含量2%~9%。总之,不同小麦品种对镉、锌和锰分别有着不同的转移、积累规律,需根据品种选择不同叶面喷施材料。

    Abstract:

    This field experiment examined the growth, yield, Cd reduction, as well as the transfer mation and accumulation of Cd in six wheat varieties through foliar sprayings of nano-ZnO, nano-MnO2, and their mixtures. The results indicated there were significant differences in the yields, the contents and uptakes of Zn and Mn of the six wheat varieties. Foliar applications of these three nanomaterials had no significant impacts on the plant heights across different wheat varieties. However, it significantly increased the theoretical yields of Zhoumai 36 and Jiangmai 919. Moreover, Cd concentrations in the grains of Xinong 619, Zhoumai 36, Huawei 305, Shengmai 21, Jiangmai 919 and Yannong 919 were reduced by 11%-35%, 10%-46%, 10%-38%, 28%-40%, 37%-53%, and 15%-27%, respectively. Additionally, foliar spraying of nano-ZnO significantly increased Zn contents by 4%-20% in the grains of Xinong 619, Zhoumai 36, Huawei 305, Jiangmai 919 and Yannong 919. Similarly, foliar spraying of nano-MnO2significantly increased Mn contents by 2%-9% in grains of Zhoumai 36, Huawei 305, Jiangmai 919 and Yannong 919. In conclusion, different wheat varieties have different transfer mation and accumulation patterns of Cd, Zn and Mn, and different materials should be selected for leaf spraying according to the wheat varieties.

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刘奇奇,吴求刚,周静,张力浩,吴大付,周俊.叶面喷施纳米氧化锌和二氧化锰对小麦镉锌锰吸收和转运的影响[J].土壤,2025,57(2):376-386. LIU Qiqi, WU Qiugang, ZHOU Jing, ZHANG Lihao, WU Dafu, ZHOU Jun. Effects of Foliar Spraying of ZnO and MnO2 Nanoparticles on Uptake and Translocation of Cd, Zn and Mn in Wheat[J]. Soils,2025,57(2):376-386

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  • 收稿日期:2024-02-06
  • 最后修改日期:2024-06-20
  • 录用日期:2024-07-04
  • 在线发布日期: 2025-05-08
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