Breeding and utilization of fragrant restoring line Dalixiang 15 of indica hybrid rice

Using the intermediate material "7539" as fragrance donator, and the hybrid manner by multiple cross, the synchronizing appraisal and selection have been done within the hybrid progenies in fragrance, resistance and plant modality. After a directional selection and breeding of 10 years, a disease-resistant restoring line which called Dalixiang 15 was screened. The serial hybrid combinations of the restoring line,Ⅱyou 15 and D you 15, which possess the virtue of well excellence, moderate maturation period, better rice quality, rice blast resistance and high yield of seed production. Moreover, both varieties have been adopted by Fujian Strains Audited Committee.