Breeding of high-quality rice variety Qifengzhan and its applications

In order to combine and advance quality and yield for Guangdong rice industry，a new variety Qifengzhan was approved by Guangdong approval committee of crop variety in February 2009.It was crossed by Qilisimiao and Fenggenzhan as female and male parents，and was bred by pedigree breeding system and by means of selection of resistance to rice blast and rice bacterial blight with pyramiding breeding approaches in combination with artificial inoculation and stringent phenotypic selections.The results of regional trial (2006-2007)showed that the average yield of Qifengzhan, was 365.19 kg/667m2 and 360.62 kg/667m2，lower than the control Yuexiangzhan, and the results of quality identification showed that the quality of Qifengzhan was excellent. Qifengzhan was suited to plant on south of the Northern Guangdong for early season and late season.