5个水稻新不育系配合力分析  

An Analysis of Combining Ability of 5 New Cytoplasm Male Sterile Lines of Rice

作　　者：陈云风[1,2] 余秋英[1] 傅军如[1] 朱昌兰[1] 贺晓鹏[1] 陈小荣[1] 欧阳林娟[1] 彭小松[1] 贺浩华[1] 

机构地区：[1]江西农业大学农学院/作物生理生态与遗传育种教育部重点实验室,江西南昌330045 [2]宜春学院生命科学院,江西宜春336000

出　　处：《江西农业大学学报》2013年第6期1140-1146,共7页Acta Agriculturae Universitatis Jiangxiensis

基　　金：农业部财政项目(长江中游双季超级稻新品种选育);江西省"赣鄱英才555工程"领军人才计划项目;江西省重大科技计划项目(20114ABF03105)

摘　　要：为测定5个新育成水稻不育系的育种应用潜力,将5个新不育系及其对照金23A与12个恢复系按不完全双列杂交方式配组,对其杂种F1代的9个与产量相关性状进行配合力分析,结果表明:一般配合力比对照金23A强的有井冈4A、井冈5A、井冈2A,而井冈3A、井冈1A不如对照,其中井冈4A和井冈5A效应明显。所测组合中单株产量最高的组合是井冈4A/昌恢808,综合性状最优良的组合是井冈2A/T025。In order to detect the application potential of 5 new rice CMS lines in breeding, by means of NC Ⅱ incomplete diallel crossing design,the 5 new sterile lines were combined with Jin23A （CK） and other 12 restoring lines,the combining ability of 9 production-related traits of the hybrid F1 was analyzed.The results showed that the GCA effects of Jinggang4A, Jinggang5A, and Jinggang2A were stronger than those of Jin23A （CK） ,but the GCA effects of Jinggang3A and JingganglA were not as strong as that of Jin23A（CK） ,and the GCA effects of Jinggang4A and the Jinggang5A were the strongest.In all the detected rice sterile lines the com- bination of Jinggang4A/Changhui808 had the highest yield per plant, and the integrated traits of the combina- tion of Jinggang2A/T025 were the best.

关 键 词：水稻不育系 配合力 产量优势 

分 类 号：S336[农业科学—作物遗传育种]