In order to obtain high-quality fragrant and soft National Day rice suitable for cultivation in Shanghai,"Songzaoxiang No.1"and"Shangshi Zaozaoxiang"crossed to produce F1,which was self-crossed till F4,accompanied simultaneously by soft rice gene molecular marker assisted screening and field agronomic trait selection,producing ultimately,a new soft rice line with high-quality fragrant,named as"Xiangruan Zaogeng".Compared with"Songzaoxiang No.1",the maturation of"Xiangruan Zaogeng"was 15 d ays early,its yield was also increased by 84.9 kg/mu(～666.67 m2),entering the market earlier and getting better economic benefits.The quality testing results showed that the amylose content of"Zaogeng"was 9.7％,gel consistency was 80 mm,and have aroma genes,belonging to high-quality fragrant soft rice.The successful breeding of the"Xiangruan Zaogeng"lays the foundation for the promotion of early maturing fragrant and soft rice in Shanghai.
关键词
国庆稻/香米/软米/分子标记辅助选择
Key words
National Day rice/fragrant rice/soft rice/molecular marker assisted selection
万方数据