籼型香稻恢复系大粒香-15的选育与利用

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

利用中间材料7539作香味供体,采用复交配组方式,对杂交后代进行香味、抗性、株型同步鉴定筛选,经过10多年定向培育,选育出抗病香稻恢复系大粒香-15。用该恢复系配组的杂交稻组合Ⅱ优15、D优15优势强、熟期适中、米质较优、抗稻瘟病及制种产量高,已通过福建省品种审定委员会审定。

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, Ⅱ you 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.