水稻柱头外露基因的遗传及应用思考  

Heredity and its Application of Stigma Exsertion Gene of Japonica Rice

作　　者：荆彦辉[1] 张子军[1] 周晓玲[1] 

机构地区：[1]天津天隆农业科技有限公司,天津300457

出　　处：《农业科技通讯》2009年第8期40-42,共3页

基　　金：天津市应用基础及前沿技术研究计划(08JCYBC04900);国家科技支撑计划:(2006BAD01A01-7)

摘　　要：以高柱头外露率的50S作母本,低柱头外露率的三系粳稻保持系连B作父本杂交,种植F2群体,取单株调查柱头外露率,分析表明柱头外露率接近正态分布,均值为31.5%,变异幅度较大,外露率超过80%的比例仅有1.5%。据此认为粳稻遗传背景的高柱头外露率品系选育难度较大,并对高柱头外露选育方法进行了探讨。Use 50S as female parent, which with high percentage of exserted stigma, crossed with Maintainer Line lianB wich is three-line Japonica type with lower percentage of exserted stigma, planting F2 generation, analysis showed that the percentage of exserted stigma close to normal distribution, the average was about 31.5 percent, the variability range was more significant, the percentage of exserted stigma exceeded 80 percent was only 1.5 percent. Considered that breeding high percentage of exserted stigma which＇ have Japonica rice background was difficult, and discussed the breeding method of high percentage of exserted stigma.

关 键 词：粳稻 柱头 外露 

分 类 号：S511[农业科学—作物学] S511.03