摘要
本文研究了用不同能量不同剂量的质子处理甜瓜干种子的生物学效应。结果表明,质子辐照可诱发染色体结构变异及分裂行为异常,随着质子能量和剂量的提高,染色体畸变细胞率呈增加趋势。质子对染色体的致畸效应有微核、染色体桥、断片等。从突变效应看,早熟突变较多,并从中选出T63-1-17-8-1-3早熟突变系。
Various doses and energy of the proton beam （ H^＋ ） were used to treat dry seeds of melon （ Cucumis melo L. ）. Results show that, the proton beam irradiation can induce structural variations of chromosomes and abnormal behaviors during mitosis and meiosis. The percentage of cells with chromosomal aberration increased with the increment of energy and dose of the proton. The micronuclei, chromosomal bridge and chromosomal fragments were included in chromosomal aberration. The proton beam was effective in inducing mutants of early maturity. A early maturity line T 63-1-17-8-1-3 was selected from the progenies of the seeds treated with the proton beam.
出处
《核农学报》
CAS
CSCD
北大核心
2006年第4期318-320,共3页
Journal of Nuclear Agricultural Sciences
基金
河北省科技厅硕博基金资助
关键词
质子束
甜瓜
辐照
生物学效应
proton beam（H^＋ ）
melon
irradiation
biologic effect
