几个不育系在杂交稻新组合选育中的利用评价  

Utilization appraise of several male-sterile lines in the breeding of hybrid rice new combination

作　　者：黄广平 王新 汤昌兴 

机构地区：[1]汕头市农业科学研究所,广东汕头515021

出　　处：《广东农业科学》2008年第1期5-6,共2页Guangdong Agricultural Sciences

基　　金：广东省科技重大专项(2003A2010101)

摘　　要：通过对汕头市农科所近10年在水稻不育系利用情况的分析发现,利用特A组配育成的新组合杂种优势主要来自于千粒重的提高,利用博A组配育成的新组合杂种优势主要来自于单科穗数的增加,而利用优ⅠA组配育成的新组合杂种优势主要来自于单科穗数的增加和千粒重的提高。同时,对几个常用不育系在杂交稻新组合选育利用情况进行了分析,为不同类型杂交稻新组合选育提供了科学参考。Through the analysis of nearly 10 years utilization of the hybid rice male-sterile lines in the Shantou agricultural sciences research institute, it was discovered that the heterosis of the new rice hybrid combination that combined with the TEA male-sterile line mainly come from the increase of 1000-seed weight, the BO A male-sterile line mainly come from the increase of single plant spike number , YOUⅠ A mainly come from both the .increase of spike number and the increase of 1000-seed weight. Through the analysis of several commonly used male-sterile lines, it afforded the science reference for the breeding of different type hybrid rice new combination.

关 键 词：不育系 利用 杂交稻 选育 

分 类 号：S511.035.1[农业科学—作物学]