神舟三号飞船搭载水稻种子M_1代变化的分析  

Changes in M_1 generation rice after space flight

作　　者：魏力军[1] 辛平[1] 罗成飞[2] 袁杨成[1] 赫杰[1] 孙野青[1] 

机构地区：[1]哈尔滨工业大学生命科学与工程系,黑龙江哈尔滨150001 [2]哈尔滨工业大学糖业研究院,黑龙江哈尔滨150086

出　　处：《哈尔滨工业大学学报》2003年第6期641-643,共3页Journal of Harbin Institute of Technology

基　　金：国家高技术研究发展计划资助项目 ( 863-2 0 0 1AA2 3 10 91)

摘　　要：为研究空间环境处理对水稻生长发育的影响 ,筛选有益的突变体 ,在神舟三号飞船上搭载 10个不同熟期水稻品种的干种子 .种子返地后栽培 ,考察发芽率、分蘖数和抽穗期等性状 ,并进行显著性分析 .结果表明空间环境对不同基因型品种的分蘖有刺激和抑制两种效应 ,不同熟期的品种抽穗期变化的方向与基因型有关 .空间处理M1代亦出现 5株株高变高的个体 。To study the space effect on growth and development of rice and to select beneficial mutations,10 kinds of dry rice seeds with different heading time were carried on 'ShenZhou'spaceship for space flight. The rice was planted immediately after the space flight to study the changes in biological characters, such as germination rate, tiller number and heading date, and remarkable changes were analyzed by statistics. The results show that space environment can stimuli or inhabit rice tiller according to different genotypes. The changes of heading date indicate the direction of changes must have some relationship with genotype. Five plants were found much higher in M 1 generation and they have many differences in biological characters.

关 键 词：神舟三号飞船 水稻种子 发芽率 分蘖数 抽穗期 变异株 株高 空间环境处理 M1代 

分 类 号：S511[农业科学—作物学] Q693[生物学—生物物理学]