不同浓度纳米氧化铁对西瓜幼苗生长的影响  

Effect of Different Concentrations of Iron Oxide Nanoparticles on Growth of Watermelon

作　　者：王运强[1] 甘秋良 戴照义[1] 陈港 郭雅新 李俊丽 WANG Yun-qiang;GAN Qiu-liang;DAI Zhao-yi;CHEN Gang;GUO Ya-xin;LI Jun-li(Institute of Economic Crops, Hnbei Academy of Agricultural Science, Hubei Wuhan 430064, China;School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Hubei Wuhan 430070, China)

机构地区：[1]湖北省农业科学院经济作物研究所,湖北武汉430064 [2]武汉理工大学化学化工与生命科学学院,湖北武汉430070

出　　处：《西南农业学报》2017年第12期2782-2787,共6页Southwest China Journal of Agricultural Sciences

基　　金：国家现代农业产业技术体系专项资金资助项目(CAR S-26-34);湖北省技术创新专项(2016AHB028);中央高校基本科研业务费专项资金资助(WUT:2017IB006);国家大学生创新创业训练计划(20161049720006)

摘　　要：【目的】研究不同浓度纳米氧化铁对西瓜幼苗生长的影响。【方法】采用不同浓度纳米氧化铁对西瓜幼苗进行处理后,对植株根系生物量、抗氧化酶活性等进行测定。对比不同粒径纳米氧化铁对西瓜叶片影响的研究,比较纳米处理对植株地上地下部分影响的差异。【结果】不同浓度的纳米氧化铁对西瓜根系生长有影响,低浓度时对植株生长起促进作用,高浓度时促进作用减弱或起抑制效果,呈现出一定的植物毒性。【结论】低浓度的纳米氧化铁有利于植物的生长,在弄清剂量、毒性及尺寸效应的基础上,有望将纳米氧化铁作为纳米肥料或植物生长调节剂用于农业生产上。【Objective】The research was designed to evaluate the influence of γ-Fe_2O_3 NPs with different concentration on the growth of watermelon seedlings. 【Method】Root biomass and antioxidant enzyme activity were measured in plants exposed to different concentrations of γ-Fe_2O_3 NPs. By comparing the results with the impact on leaves of watermelon of γ-Fe_2O_3 NPs with different particle size,different impact on aerial and underground part of watermelon seedlings was also discussed. 【Result】Effects of γ-Fe_2O_3 NPs were related with concentration.The effects of γ-Fe_2O_3 NPs at lower concentration was positive on plant growth,while at high concentration the effects were weakened or inhibited,which presented phytotoxicity. 【Conclusion】Low concentration of γ-Fe_2O_3 NPs has positive effects on plant growth. Based on further understanding of dose,toxicity and size effects,γ-Fe_2O_3 NPs are expected to be used as a nano-fertilizer or plant growth regulator in agricultural production.

关 键 词：不同浓度 纳米氧化铁 根系生长 西瓜 

分 类 号：S651[农业科学—果树学]