摘要
以鉴54、豫农118及豫麦18号为材料,研究了不同剂量率、剂量离子注入对小麦幼苗生长的影响。结果表明,随着剂量率和剂量的增加小麦幼苗损伤程度逐渐加剧,具体表现在苗高降低、第一叶长变短。剂量率间差异显著,品种间有辐射敏感性差异。另外苗期还发现了一些变异,主要表现为主叶脉失绿和形态畸形。离子束诱变的合适剂量在6×1017ions/cm2以上。
Embryos of wheat varieties Jian 54,Yunong 118 and Yumai 18 were implanted by different dose rate and fluence at the energy of 30 keV. The result showed that with the increase of dose rate and fluence wheat seedling′s damage was increased. Wheat seedling′s height became lower and the first leaf shorter with the dose change. The difference of wheat seedling height and the first leaf were significant with the increase of the dose rate. The effects of ion implantation to varieties were different. In addition, there were some variations in wheat seedings after implantation. They embodied in chlorophyll defect in leaf nervation and morphological aberrance of plants. At last the right dose rate and dose was induced on wheat mutation by ion beam implantation.
出处
《华北农学报》
CSCD
北大核心
2005年第2期80-83,共4页
Acta Agriculturae Boreali-Sinica
基金
国家"十五"科技攻关项目(2001BA302B-03)
