【摘要】 为加快粳稻杂交育种的进程,为粳稻杂交育种提供强优势的亲本,对5个新粳型不育系和5个新粳型恢复系按不完全双列杂交方式配组F1,对F1的产量及产量构成因素进行配合力分析。结果表明:各亲本一般配合力因性状而异,不育系中以A5(BJ-5A)为最理想亲本,其一般配合力均为正效应,单株谷重与结实率两性状的一般配合力表现均优于其他4个不育系;恢复系中以R2(ZC4090)为最理想亲本,其单株谷重与结实率两性状的一般配合力最高。更多还原

【Abstract】 Five new japonica sterile lines were crossed with five new japonica restoring lines by incomplete diallel cross design,and the F1 yield and yield components were analyzed to speed up the breeding process of hybrid japonica rice and provide superior parents for hybrid japonica rice breeding.The results showed that the general combining ability of each parent varied,for sterile line,A5(BJ-5A) was the ideal parent,the general combining ability of which was positive,grain weight per plant and setting percentage were better than the other four sterile lines.For restoring line,R2(ZC4090) was the ideal parent for the highest general combining ability of grain weight per plant and setting percentage.更多还原