工频电场暴露对玉米生长发育及生化物质的影响

发布时间：2018-11-04 18:49

【摘要】：特高压电网是发展全球能源互联网的核心之一,电网产生的工频电磁场的生物效应已成为社会关注的焦点问题。为此,以大田农作物玉米为研究对象,进行了玉米的工频电场暴露实验,设置了3个暴露组(电场强度分别为2 kV/m、10 kV/m和15 kV/m)和1个对照组(背景电场,电场强度接近于0),分别定期测定了玉米形态指标、生化物质、保护性酶活,并对数据进行了AVONA检验分析。研究结果表明:暴露组与对照组玉米的株高、茎粗没有显著差异,玉米总功能叶片数、叶绿素没有显著差异;玉米干物质、千粒质量没有显著差异;玉米整个生育期总蛋白比较稳定,可溶性糖、总氨基酸无明显下降,但暴露组和对照组玉米在不同生长阶段的可溶性糖和总氨基酸具有差异,与电场强度没有一致性关系;超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)、谷胱甘肽 S 转移酶(GST)这4种保护性酶活无明显升高,但暴露组和对照组玉米在不同生长阶段的4种保护性酶活具有差异,与电场强度没有一致性关系。由此可得结论:电场强度分别为2 kV/m、10 kV/m和15 kV/m的工频电场暴露对玉米的总氨基酸、可溶性糖、4种保护性酶活有扰动,有一定的物理作用,但不影响玉米光合作用和生长发育以及产量。
[Abstract]:UHV power grid is one of the core of the development of global energy Internet. The biological effect of power frequency electromagnetic field generated by power grid has become the focus of attention. Therefore, the experiment of electric field exposure of maize in field was carried out. Three exposure groups (electric field intensity were 2 kV/m,10 kV/m and 15 kV/m) and one control group (background electric field) were set up. The electric field intensity was close to 0), the morphological index, biochemical material and protective enzyme activity of maize were measured periodically, and the data were analyzed by AVONA test. The results showed that there was no significant difference in plant height and stem diameter between the exposed group and the control group, but there was no significant difference in the total functional leaf number and chlorophyll content between the exposed group and the control group, and there was no significant difference in dry matter and 1000 grain weight between the exposed group and the control group. The total protein of maize during the whole growth period was stable, the soluble sugar and total amino acid were not significantly decreased, but the soluble sugar and total amino acid of the exposed group and the control group were different in different growth stages, and there was no relationship between the total protein and the electric field intensity. Superoxide dismutase (SOD),) peroxidase (POD), catalase (CAT), glutathione S-transferase (GST), the four protective enzymes, were not significantly increased. However, the activities of four protective enzymes in the exposed group and the control group were different in different growth stages, and there was no correlation between the four protective enzymes and the electric field intensity. It is concluded that the total amino acid, soluble sugar and four protective enzymes of maize were disturbed by the electric field intensity of 2 kV/m,10 kV/m and 15 kV/m, respectively. But it did not affect the photosynthesis, growth, development and yield of maize.
【作者单位】：中国电力科学研究院;电网环境保护国家重点实验室;华中农业大学;
【基金】：国家电网公司科技项目(GY71-16-008)~~
【分类号】：S513;O441.4

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