Journal of Radiation Research and Radiation Proces ›› 2018, Vol. 36 ›› Issue (2): 20401-020401.doi: 10.11889/j.1000-3436.2018.rrj.36.020401

• RADIATION TECHNOLOGY APPLICATION • Previous Articles     Next Articles

Effects of fast neutron irradiation on seed germination and seedling growth of maize

LIU Zhongxiang1, XU Dapeng2,3, LIAN Xiaorong1, ZHOU Wenqi1, KOU Sirong1, YAO Ze'en2,3   

  1. 1. Crops Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China;
    2. The School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China;
    3. Engineering Research Center of Neutron Application Technology of Education Ministry, Lanzhou University, Lanzhou 730000, China
  • Received:2017-11-01 Revised:2017-12-15 Online:2018-04-20 Published:2018-04-19
  • Supported by:

    Supported by National Key Research and Development Program (2016YFD0100103-19), the National Natural Science Foundation of China (Grant No. 31760390) and the Agricultural Science and Technology Innovation Program of Gansu Academy of Agricultural Sciences (2017GAAS67)

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.

Key words: Maize, Fast neutron irradiation, Seed germination, Seedling growth

CLC Number: 

  • TL99