快中子辐照对玉米种子萌发及幼苗生长的影响

刘忠祥; 徐大鹏; 连晓荣; 周文期; 寇思荣; 姚泽恩

doi:10.11889/j.1000-3436.2018.rrj.36.020401

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快中子辐照对玉米种子萌发及幼苗生长的影响

辐射技术的应用 | 更新时间：2021-12-10

- 快中子辐照对玉米种子萌发及幼苗生长的影响
- Effects of fast neutron irradiation on seed germination and seedling growth of maize
- 辐射研究与辐射工艺学报 2018年36卷第2期
- 作者机构：
  
  1.甘肃省农业科学院作物研究所兰州 730070
  2.兰州大学核科学与技术学院兰州 730000
  3.兰州大学教育部中子应用技术工程研究中心兰州 730000
- 作者简介：
  
  [ "刘忠祥, 男, 1964年7月出生, 2008年毕业于甘肃农业大学, 现为甘肃省农业科学院作物研究所副研究员", "LIU Zhongxiang (male) was born in July 1964, and received his bachelor degree from Gansu Agriculture University in 2008. Now he is an associate research fellow of Crops Research Institute, Gansu Academy of Agricultural Sciences" ]
  姚泽恩, 博士, 教授, E-mail:zeyao@lzu.edu.cn Ph.D. YAO Ze’en, professor, E-mail: zeyao@lzu.edu.cn
- 基金信息：
  
  国家重点研发计划(2016YFD0100103-19);国家自然科学基金(31760390);甘肃省农业科学院农业科技创新专项计划(2017GAAS67)
- DOI：10.11889/j.1000-3436.2018.rrj.36.020401
  中图分类号：
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刘忠祥, 徐大鹏, 连晓荣, 等. 快中子辐照对玉米种子萌发及幼苗生长的影响[J]. 辐射研究与辐射工艺学报, 2018,36(2):020401-7.

Zhongxiang LIU, Dapeng XU, Xiaorong LIAN, et al. Effects of fast neutron irradiation on seed germination and seedling growth of maize[J]. Journal of Radiation Research and Radiation Processing, 2018,36(2):020401-7.
刘忠祥, 徐大鹏, 连晓荣, 等. 快中子辐照对玉米种子萌发及幼苗生长的影响[J]. 辐射研究与辐射工艺学报, 2018,36(2):020401-7. DOI： 10.11889/j.1000-3436.2018.rrj.36.020401.

Zhongxiang LIU, Dapeng XU, Xiaorong LIAN, et al. Effects of fast neutron irradiation on seed germination and seedling growth of maize[J]. Journal of Radiation Research and Radiation Processing, 2018,36(2):020401-7. DOI： 10.11889/j.1000-3436.2018.rrj.36.020401.

摘要

采用,252,Cf裂变中子源辐照郑单958（ZD958）和武9086（W9086）干种子至吸收剂量为0.98、1.26、1.51、1.97、2.48、3.37 Gy。考察吸收剂量对玉米种子的发芽势、发芽率、芽长、根长、根数等性能表征参数的影响。结果表明，M1代植株的发芽势、发芽率、芽长、根长、根数均随吸收剂量的增加而降低。当吸收剂量为3.37 Gy时，W9086的发芽势为42.4%，ZD958的发芽势为61.6%；W9086的发芽率为61.6%，ZD958的发芽率为73.7%；W9086的芽长为2.7 cm，ZD958的芽长为4.0 cm；W9086的根长为4.9 cm，ZD958的根长为4.9 cm；W9086的根数目为3.0，ZD958的根数目为3.7，均比对照组低。结果提示，快中子辐照对玉米种子萌发和幼苗生长均具有抑制作用，并且对W9086的抑制作用比对ZD958的明显，表明不同玉米种子对快中子辐照的敏感性不同。

Abstract

To explore the effects of fast neutron irradiation on seed germination and seedling growth of maize, some ZD958 and W9086 maize dry seeds were irradiated by fast neutron to absorbed doses of 0.98, 1.26, 1.51, 1.97, 2.48, and 3.37 Gy. When the absorbed dose was 3.37 Gy, the relative germination vigor of W9086 was 42.4%, and the germination vigor of ZD958 was 61.6%; the germination rate of W9086 was 61.6%, the germination rate of ZD958 was 73.7%; the shoot length of W9086 was 2.7 cm, the shoot length of ZD958 was 4.0 cm; the root length of W9086 was 4.9 cm, the root length of ZD958 was 4.9 cm; the root number of W9086 was 3.0, the root number of ZD958 was 3.7. All were lower than those of control group. These results showed that, with the increasing absorbed doses, the germination potential, germination rate, bud length, root length, and root number of plants in M1 generation were lower, compared with the control group. And the inhibiting effect was more obvious in W9086, indicating that the sensitivity of different corn cultivars to fast neutron irradiation was different.

关键词

玉米快中子辐照种子萌发幼苗生长

Keywords

MaizeFast neutron irradiationSeed germinationSeedling growth

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