北方农业学报 ›› 2020, Vol. 48 ›› Issue (3): 47-54.doi: 10.12190/j.issn.2096-1197.2020.03.07

• 作物栽培·生理生化 • 上一篇    下一篇

氮离子束小麦诱变群体氮素利用和籽粒品质的变化

樊继伟1, 郭明明1, 王康君1, 孙中伟1, 张广旭1, 李强1, 李筠2, 章跃树2, 代丹丹2, 陈凤1   

  1. 1.江苏徐淮地区连云港农业科学研究所/连云港市农业科学院,江苏 连云港 222000;
    2.连云港市农业农村局,江苏 连云港 222000
  • 收稿日期:2020-04-26 出版日期:2020-06-20 发布日期:2020-08-14
  • 通讯作者: 陈 凤(1973—),女,研究员,硕士,主要从事小麦高产优质育种的研究工作。
  • 作者简介:樊继伟(1982—),男,副研究员,学士,主要从事小麦高产优质抗病育种的研究工作。郭明明(1988—),男,助理研究员,硕士,主要从事小麦育种及高产优质栽培的研究工作。樊继伟和郭明明为同等贡献作者。
  • 基金资助:
    江苏省农业科技自主创新资金项目[CX(18)1001]; 江苏省现代农业(小麦)产业技术体系项目(JATS〔2019〕157); 连云港市财政局专项资金项目(QNJJ1914)

Changes of nitrogen utilization and grain quality of wheat population induced by N+ ion beam

FAN Jiwei1, GUO Mingming1, WANG Kangjun1, SUN Zhongwei1, ZHANG Guangxu1, LI Qiang1, LI Jun2, ZHANG Yueshu2, DAI Dandan2, CHEN Feng1   

  1. 1. Institute of Lianyungang Agricultural Science of Xuhuai Area of Jiangsu/Lianyungang Academy of Agricultural Sciences,Lianyungang 222000,China;
    2. Lianyungang Agricultural and Rural Bureau,Lianyungang 222000,China
  • Received:2020-04-26 Online:2020-06-20 Published:2020-08-14

摘要: 【目的】探明氮离子束注入后,小麦诱变群体(M1代群体)氮素利用及产量品质的变化趋势,为小麦优质生产提供理论依据。【方法】以小麦品种连麦7号和烟农19为供试材料,通过注入不同剂量氮离子束(0、2×1016、 3×1016 、4×1016 N+/cm2),分析不同小麦品种诱变群体氮素利用、籽粒产量、蛋白质含量和加工品质的变化趋势。【结果】连麦7号和烟农19小麦品种进行氮离子束注入后,诱变群体籽粒氮素积累、氮收获指数、氮素利用效率、氮素生产效率、产量、蛋白质含量及加工品质较对照均有所降低,且随注入剂量的增加,诱变群体产量和品质的负效应不断增大。2个小麦品种处理群体的氮素积累和籽粒产量在注入剂量超过2×1016 N+/cm2条件下显著下降,蛋白质含量及加工品质在剂量超过3×1016 N+/cm2时下降较为显著。同时,在高剂量条件下,连麦7号诱变群体氮素利用效率和籽粒产量下降幅度较烟农19诱变群体小,在氮素积累和籽粒品质方面连麦7号诱变群体下降较为显著。【结论】氮离子束注入引起小麦籽粒产量、氮素利用及品质下降,且注入剂量越大,对小麦的损伤越显著;氮离子束诱变群体中,籽粒产量和氮素利用效率的损伤表现为烟农19大于连麦7号,但氮素积累及加工品质方面连麦7号诱变群体下降较为显著。

关键词: 氮离子束, 注入剂量, 小麦诱变群体, 氮素利用, 籽粒品质

Abstract: 【Objective】To explore the changes of nitrogen utilization and grain quality of wheat mutation population induced by N+ ion beam.It can provide reference for wheat quality production.【Methods】Different wheat varieties(Lianmai No.7 and Yannong No.19) were used to analysis the changes of nitrogen utilization,grain yield,protein content and processing quality by implanting different doses of nitrogen ion beam (0,2×1016,3×1016 and 4×1016 N+/cm2) .【Results】The main results were as follows:The nitrogen accumulation,nitrogen harvest index,nitrogen utilization,content of protein and processing quality of mutation population of Lianmai No.7 and Yannong No.19 were decreased lower than CK.As the increasing of implanting dose,the negative effects of N+ ion beam on grain yield and quality of mutation population increased continuously.Nitrogen accumulation and grain yield of mutation population were decreased significantly after implanting dose of more than 2×1016 N+/cm2.Content of protein components and processing quality of two wheat varieties decreased significantly after implanting dose of more than 3×1016 N+/cm2.The decrease amplitude of nitrogen use efficiency and grain yield of mutation population of Lianmai No.7 were lower than mutation population of Yannong No.19 under high implanting dose,Meanwhile,nitrogen accumulation and grain quality of mutation population of Lianmai No.7 were decreased significantly.【Conclusion】The above results showed that there existed negative effects of N+ ion beam on grain yield,nitrogen utilization and grain quality of wheat,and the higher the implantation dose,the more significant the damage to wheat.In addition,the damage of high N+ ion beam dose on grain yield and nitrogen use efficiency of mutation population on Yannong No.19 were higher than Lianmai No.7,while the nitrogen accumulation and grain quality of mutation population on Lianmai No.7 were decreased significantly than Yannong No.19.

Key words: N+ ion beam, Implantation dose, Wheat mutation population, Nitrogen utilization, Grain quality

中图分类号: 

  • S512.1