高粱雄性不育系吉2055A柱头性状研究  

Studies of Stigma Traits of Sorghum Male Sterile Line 'Ji 2055A'

作　　者：李捷 杨微[1] 李继洪[1] 高士杰[1] LI Jie;YANG Wei;LI Jihong;GAO Shijie(Crops Resources Research Institute,Jilin Academy of Agricultural Sciences,Gongzhuling 136100,China)

机构地区：[1]吉林省农业科学院作物资源研究所,吉林公主岭136100

出　　处：《东北农业科学》2019年第1期4-6,共3页Journal of Northeast Agricultural Sciences

基　　金：国家谷子高粱产业技术体系建设专项资金(CARS-06-13.5-A12);吉林省农业科技创新工程重大项目(CXGC2017ZD005);吉林省人才发展-中青年科技创新领军人才及团队项目(20190101017JH)

摘　　要：本文通过剪穗、套袋、授粉和测量对吉2055A等高粱雄性不育系柱头外露率、柱头粗度、柱头活性和柱头伸出长度等性状进行研究。结果表明,吉2055A上述柱头性状明显优于其他不育系。这也是吉2055A能够广泛应用于生产的主要原因之一。因此高粱育种中不育系的选育在重视植株、产量等其他性状的同时,也要重视不育系的柱头外露率、柱头活力和柱头伸出长度等特殊性状的选择。By means of cutting spike, bagging, fertilization and measurement, the traits of sorghum male sterile line‘Ji 2055 A’, were studied, including stigma exsertion, stigma thickness, stigma viability and stigma extension length. The results showed that the above mentioned stigma traits of‘Ji 2055 A’were significantly better than other sterile lines, which was one of the main reasons why‘Ji 2055 A’can be widely applied in production. Therefore, excepted for emphasizing on the traits of plant and yield, the selection of sterile lines in sorghum breeding should also pay attention to the special traits such as stigma exsertion, stigma viability and stigma extension length.

关 键 词：高粱 不育系 柱头性状 制种产量 降低成本 

分 类 号：S514[农业科学—作物学]