苜蓿雄性不育系MS-4回交早代雌蕊育性分析  

Analysis of Pistil Fertility in Early Generation of Backcross of Male Sterile Lines MS-4 of Afalfal

作　　者：高翠萍[1] 石凤翎[1] 蔡丽艳[1] 陈海玲[1] 杜宝红[1] 姚蒙 

机构地区：[1]内蒙古农业大学生态环境学院,呼和浩特010019 [2]内蒙古草原工作站,呼和浩特010020

出　　处：《种子》2008年第1期26-29,33,共5页Seed

基　　金：国家自然科学基金(30160057);内蒙古自然科学基金(050303-2)

摘　　要：以苜蓿雄性不育系MS-4为母本,4个具有优良性状的苜蓿材料为父本,进行杂交和连续回交,转育苜蓿雄性不育系。本文对回交早代不育株雌蕊育性进行了分析,结果表明:BC 1 A1-21和BC 1 A1-22雌蕊育性提高且雄性不育性稳定。In this paper, cross and backcross were studied. Male sterile lines MS-4 and four alfalfa materials with better characters were used respectively as female and male parent. The pistil fertility in early generation of backcross was analyzed. The results showed ： the pistil fertility of BC 1 A 1-21 and BC 1 A 1-22 were improved and have steady male sterility.

关 键 词：苜蓿雄性不育系 蕊育性 代选择 

分 类 号：S551.7[农业科学—作物学]