甘薯空间诱变选育研究  

Study on sweetpotato seeds selection by space mutation

作　　者：张雄坚[1] 房伯平[1] 陈景益[1] 曹培恩[1] 王章英[1] 罗忠霞[1] 

机构地区：[1]广东省农科院作物研究所,广东广州510640

出　　处：《广东农业科学》2008年第3期7-10,共4页Guangdong Agricultural Sciences

基　　金：广东省科技计划项目(2005B20101003;2006B20201008);国家科技基础条件平台工作项目(2005DKA21002-05);作物种质资源保护项目(NB04-070401-14)

摘　　要：对在2003～2005年搭载我国第18、20、22颗返回式卫星进行空间诱变处理的甘薯杂交种子进行发芽及实生苗种植试验,结果表明:空间诱变处理对甘薯种子的出芽和成苗没有不利影响,实生苗的蔓长、分枝数和茎叶重均有所增加,并容易出现深紫色甘薯材料、薯块品质改善;经空间诱变处理的甘薯种子实生苗系有较高的入选率,可筛选出较多的淀粉类型和紫色类型育种材料。Carried by No. 18, 20 , 22 China＇s satellites from 2003 to 2005, total of 1480 sweet potato hybrid seeds were treated for space mutation. No adverse impact on germination and seedling growth was found, followed by increasing in average vine length, branches number, top weight. It is thought that space mutation can promote sweetpotato growth, and dark purple sweet potato variation is easy to be obtained, and root quality is improved. The results of seedling selection showed that there is a higher rate of selection for mutant seedlings, with more types of purple, starch breeding materials.

关 键 词：甘薯种子 空间诱变 促进 选种 淀粉材料 

分 类 号：S531.035.2[农业科学—作物学]