›› 2013, Vol. 25 ›› Issue (6): 0-1176.

• 作物科学 •    

6个晚粳不育系主要经济性状配合力分析

谢留杰,潘晓飚,黄善军*   

  1. 浙江省台州市农业科学研究院 作物研究所,浙江 临海 317000a
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-11-25 发布日期:2013-11-25

Combining ability of major agronomic traits for six photosensitive japonica sterile lines

XIE Liu\|jie;PAN Xiao\|biao;HUANG Shan\|jun   

  1. Crop Institute, Taizhou Reserch Academy of Agricultural Sciences, Zhejiang Province, Linhai 317000, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-11-25 Published:2013-11-25

摘要: 以6个晚粳不育系和新育成的6个粳型恢复系为亲本,采用不完全双列杂交(NCⅡ遗传交配)设计,对10个主要农艺性状杂种F1的配合力进行分析。结果表明:所有性状加性和显性方差占表型方差的遗传比率均达极显著性差异。穗长、千粒重、总粒数、实粒数、结实率、播始历期和剑叶长主要受亲本的一般配合力影响,单株重、株高和有效穗主要受组合的特殊配合力影响。亲本的一般配合力和组合的特殊配合力之间无必然联系。不育系以嘉60A,浙粳4A和台粳1A的表现较好,恢复系中HT236,HT214和HT88优势明显。

关键词: 晚粳不育系, 配合力, 农艺性状

Abstract: The combining ability of ten major agronomic characters of F1 derived from 6 photosensitive japonica sterile lines and 6 japonica restorer lines was studied by incomplete diallel cross (NC II) design. The results showed that proportions of variance components for all agronomic traits were significant at 1% level. GCA (general combining ability) played a major role for panicle length, 1000\|grain weight, spikelets per panicle, filled grains per panicle, seed setting rate,dates from sowing to heading and flag leaf length. Grain weight per plant, plant height and effective panicles per plant were mainly controlled by SCA (special combining ability). No necessary connection between parental general combining ability and cross special combining ability was found. For sterile lines, Jia60A, Zhejing4A and Taijing1A were ideal parents, and HT236, HT214 and HT88 were recommendable restorer lines.

Key words: photosensitive japonica sterile lines, combining ability, agronomic traits