农业环境科学学报2017，Vol.36Issue(1)：1-7,7.DOI:10.11654/jaes.2016-0968
不同硒源对小麦生长、硒吸收利用以及玉米后效的影响
Effects of different selenium sources on wheat growth, selenium uptake and utilization and the aftereffects on maize
摘要
Abstract
Human dietary Se intake is largely governed by Se concentrations in plants. In order to clarify the difference of plants uptake and utilization on selenium ore and the other common forms of Se in the soil, we studied the growth, Se uptake and utilization of wheat and ana-lyzed its aftereffect on maize between different sources of Se(selenite;selenate;selenium ore;selenium powder)based on pot experiment. The results showed that the application of selenate, selenite and selenium powder had no obvious effect on biomass of wheat, but selenium ore significantly increased biomass of wheat by 11.56%. The uptake capacity of different selenium sources by wheat followed the sequence of selenate>selenite>selenium ore>selenium powder. The ability of transport Se in wheat from roots to shoots showed a tendency of selenate>selenium ore>selenium powder>selenite. The content of Se in wheat grain had the ratio of 1∶2.95∶19.19∶0.15 when selenate, selenite, seleni-um ore, selenium powder were applied, respectively the aftereffects of selenium content in shoots of maize had ratio of 1∶1.96∶6.44∶0.07, which suggested that the aftereffect of different selenium sources on maize followed the sequence of selenate>selenite>selenium ore>seleni-um powder, and the aftereffect of selenium on maize between the selenium ore and selenite , selenate narrowed significantly. Selenium pow-der was difficult to be absorbed by wheat and maize. In conclusion, selenium ore has the strongest ability to improve crop growth and has a relatively long aftereffect.关键词
小麦/玉米/硒酸盐/亚硒酸盐/硒矿/硒粉窗体顶端Key words
wheat(Triticum aestivum L.)/maize(Zea mays L.)/selenite/selenate/selenium ore/selenium powder分类
农业科技引用本文复制引用
李鸣凤,邓小芳,付小丽,段碧辉,张海清,赵竹青,刘新伟..不同硒源对小麦生长、硒吸收利用以及玉米后效的影响[J].农业环境科学学报,2017,36(1):1-7,7.基金项目
中央高校基本科研业务费专项资金项目（2662016QD015）；江汉平原主要作物富硒施肥体系及富硒产品加工关键技术研究XKJ201501-21Project supportedThe Fundamental Research Funds for the Central Universities（2662016QD015）；The Rich Selenium Fertilization System of the Main Staple Crop in Jianghan Plain and Key Technology Research of Rich Selenium Product Processing （）
