Abstract:
Objective The aromatic high-quality restorer lines was selected and bred to provide excellent germplasm resources for the cultivation of new aromatic high-quality hybrid rice varieties.
Method In 2011, a recurrent selective population containing dominant male sterile rice was constructed by Sanming dominant male sterile rice, and the resistance to rice blast restorer Minghui 1101 line were used for the hybridization. The progeny fertile strains were selected by directional pedigree selection, the aroma was identified by mastication method, and the restorer lines with aromatic were selected by natural field induction identification of rice blast.
Result A new good quality, strong flavor and the best general combining ability restorer line, Minglunzhenzhan, was obtained in 2016. The newly bred variety won the Gold Award of the second National Quality Rice Variety Taste Quality Evaluation (indica rice) and certified by the Fujian Province Crop Variety Approval Committee in 2019. A series of new hybrid rice varieties such as Ming 1 youzhenzhan, Yexiangyouzhenzhan have been bred. All of them had the characteristics of excellent quality and fragrance, and passed the national and provincial variety approval. Among them, Ming 1 youzhenzhan and Yexiangyouzhenzhan had won gold MEDALS in many rice quality evaluation activities.
Conclusion A new good quality, strong flavor and best general combining ability restorer line, Minglunzhenzhan, which can be used not only as a high quality rice, but also as a restorer line for high quality fragrant hybrid rice.