中国农业科技导报 ›› 2018, Vol. 20 ›› Issue (5): 83-90.DOI: 10.13304/j.nykjdb.2017.0386

• 资源环境 生物药物 生物质转化 • 上一篇    下一篇

长江中下游地区主推小麦品种的硒强化潜力研究

孙发宇1,陈欣1,马启闯1,李磊1,吴宏亚2,李韬1*   

  1. 1.扬州大学江苏省作物遗传生理国家重点实验室, 粮食作物现代产业技术协同创新中心,
    教育部植物功能基因组学重点实验室, 江苏 扬州225009; 2.江苏里下河地区农业科学研究所,
    江苏 扬州 225007
  • 收稿日期:2017-06-15 出版日期:2018-05-15 发布日期:2017-07-18
  • 通讯作者: 李韬,教授,博士,主要从事小麦赤霉病抗性和小麦硒强化潜力的遗传基础研究。E-mail: taoli@yzu.edu.cn
  • 作者简介:孙发宇,硕士研究生,主要从事作物硒生物强化研究。E-mail: 824976008@qq.com。
  • 基金资助:
    江苏省研究生科研创新计划项目;扬州大学创新团队项目;江苏省高校优势学科建设工程资助项目(PAPD)资助。

Evaluation on Selenium Biofortification Potential of Commercial Wheat Cultivars in Middle and Lower Reaches of the Yangtze River

SUN Fayu1, CHEN Xin1, MA Qichuang1, LI Lei1, WU Hongya2, LI Tao1*   

  1. 1.Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology; Modern Inclustry Technology Innovation Center of Food
    Crops; Key Laboratory of Plant Functional Genomics, Ministry of Education; Yangzhou University, Jiangsu Yangzhou 225009;
    2.Lixiahe Agricultural Research Institute of Jiangsu Province, Jiangsu Yangzhou 225007, China
  • Received:2017-06-15 Online:2018-05-15 Published:2017-07-18

摘要: 为了筛选适宜叶面喷施硒强化的理想品种,对63个近年来长江中下游主推小麦品种(系)进行叶面喷施硒酸钠,强化浓度为300 mg Se/L(Se300),利用离子发射光谱-原子吸收仪测定了小麦籽粒中Se、Cu、Fe、Mn、Zn、K、Mg、K和S含量。结果显示,叶面喷施硒酸钠可以提高小麦籽粒中的硒含量,总硒含量平均值由对照组的2.13±0.73 mg/kg提高到9.13±3.86 mg/kg,但增幅因品种而异;籽粒中不同矿物质元素对叶面喷施硒酸钠的响应不同,硒降低了籽粒中Cu、Fe、K、Mg和S的含量,但提高了锌的含量,对Mn和Ca元素含量没有影响。综合比较显示江麦816是长江中下游主要推广品种中硒强化潜力较大的品种(系)之一。

关键词: 小麦, 硒强化, 喷施, 硒酸钠, 矿质营养

Abstract: In order to select ideal varieties suitable for follage spraying selenium (Se) biofortification in grains of different wheat cultivars in Middle and Lower Reaches of the Yangtze River, 300 mg Se/L(Se300) foliar fertilizer was sprayed uniformly onto 63 wheat cultivars during booting-heading stages. The contents of Se, Cu, Fe, Mn, Zn, Ca, K, Mg, P and S were measured using ICP. The results indicated that follage spraying selenate increased significantly Se content in wheat grains. The average value of total Se content increased 2.13±0.73 mg/kg to 9.13±3.86 mg/kg then contrast, but the amplification varied among cultivars. Different mineral elements in grains responded differently to follage spraying selenate, decreasing the contents of Cu, Fe, K, Mg, and S in grains, but increasing Zn contents, and having no effect on Mn and Ca contents. Comprehensive comparison showed that ‘Jiangmai 816’ was one of the cultivars mainly popularized in Middle and Lower Reaches of the Yangtze River with larger Se biofortification potential.

Key words: wheat, selenium biofortification, spraying, sodium selenate, mineral nutrition