Development of"Xiangruan Zaogeng"National Day rice by molecular marker assisted selection
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.
National Day ricefragrant ricesoft ricemolecular marker assisted selection
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