高粱恢复系遗传改良策略和进展  

The Strategic and Advances of Genetic Improvement in Sorghum Restorers

作　　者：卢庆善[1] 邹剑秋 朱凯[1] 张志鹏[1] 柯福来[1] 

机构地区：[1]辽宁省农业科学院国家高粱改良中心,辽宁沈阳110161

出　　处：《辽宁农业科学》2011年第2期38-42,共5页Liaoning Agricultural Sciences

摘　　要：高粱高产杂交种要有优良恢复系与不育系组配而成。优良恢复系具有恢复能力强、配合力高、雄性器官发达、花粉量大、上好的农艺性状和抗性性状。恢复系的遗传改良从地方品种筛选逐步升级为杂交选育和诱变选育。选育的类型包括恢复不同不育细胞质的恢复系以及高产型、饲用型、甜秆型、微量营养素含量高型、耐酸碱土型恢复系等。恢复系的育性恢复遗传因不育细胞质不同而有差异,有的由1个基因控制,有的由2、3或4个基因控制。恢复系在地理和分类学上表现出遗传多样性。High yielding hybrid of sorghum has combined by elite restorer with male sterile line.Elite restorer must have better characters,such as very powerful restoration,well-developed male organ,a large number of much more pollens,high combining ability,and the best agronomic and resistant traits.The genetic improvement of R-line used the screening techniques of local varieties of sorghum,crossing breeding and induces selection.Selecting types of R-line include that can restore the different sterile cytoplasm as well as high yielding grain,forage fodder yield,sweet-stalk trait,micronutrient types.The differences of inheritance of fertility restoration are make up by different CMS,some showed that a single gene or two genes was responsible for fertility restoration,some were controlled by three or four genes.Restores showed genetic diversity in race and geography.

关 键 词：高粱 恢复系 遗传改良 策略和进展 

分 类 号：S514.01[农业科学—作物学]