玉米多育性研究  

Studies on Prolificacy in Maize

作　　者：赵明[1] 石桂春[1] 

机构地区：[1]中国人民解放军军需大学,长春130062

出　　处：《玉米科学》2002年第1期21-23,共3页Journal of Maize Sciences

摘　　要：很多研究表明 :玉米的多育性对提高产量潜力和氮肥利用率有着重要的作用。玉米多育性的遗传与控制及其与环境的关系是极其复杂的 ,但是可以肯定的是玉米的多育性主要是由隐性基因控制的。单穗×双穗是玉米多育性在杂种优势利用中的主要形式 ,但是育种家如果能创造出对环境胁迫不敏感的玉米多育性基因型材料 ,那么利用双穗×双穗的杂交模式 ,就有可能培育出稳定表达双穗特性的超级杂交玉米。Many studies have demonstrated that the yield and the utilization rate of N fertilizer is influenced by the prolificacy in maize.Although relations between the inheritance and control of prolificacy and their environment are very complex in the prolific maize,it has been proved that the prolificacy in maize is mainly controlled by the recessive genes.The model of one_ear×two_ear should be a main type of using prolificacy in hybrid maize.If the stress_insensitive prolific genotypes are successfully bred,the model of two ear×two_ear may be one of the important ways to develop super hybrid maize.

关 键 词：玉米 多育性 隐性基因 产量潜力 氮素利用率 

分 类 号：S513.032[农业科学—作物学]