太空诱变紫花苜蓿SP1代表型性状变异研究  

Research on the phenotypic variation of space mutation in SP1 generation of alfalfa

作　　者：张二喜[1] 柴小琴[1] 张建华 

机构地区：[1]甘肃省天水市农业科学研究所,甘肃天水741001 [2]甘肃省航天育种工程技术研究中心,甘肃天水741030

出　　处：《畜牧与兽医》2017年第7期37-41,共5页Animal Husbandry & Veterinary Medicine

基　　金：天水市科技支撑项目(2009-40-40-3)

摘　　要：利用太空特殊环境对植物的诱变作用,选择4个紫花苜蓿品种(德福、德宝、阿尔冈金、三得利)进行航天搭载太空诱变,以回归地面种植的第一代(SP1)为研究对象,通过田间表型性状变异研究,初步确定了6类变异类型;通过变异集团分类及单株优选,优选出6类变异集团57株变异单株(速生单株17株、分枝强单株11株、大叶单株4株、多叶单株6株、叶色变浓单株5株、抗逆单株14株),为紫花苜蓿新品种的选育提供形态学依据和种质材料。By using the mutation effect of space special environment on plant, four alfalfas were selected to board on spacecraft for mutation. Taking the test materials of seed cultivation SP 1 generation as the research object, we found 6 types of mutation after field observation of phenotypic variation. By means of further group classification and single optimization, we selected 57 variation plants such as fast-growing plants （ 17）, dwarfing-strong branch plants （ 11 ）, big area plants （4）, multifoliate plants （6）, leaf color deeped plants （5）, and stress resistance plants （14）. The research would provide a morphological basement and the germplasm resources to the further breeding of new alfalfa cuhivar.

关 键 词：太空诱变 紫花苜蓿 表型变异 种质材料 

分 类 号：S541[农业科学—作物学]