Practice and Achievement of Rice Core Germplasm Breeding

The breeding results from the 1st class core germplasm Qingliu'ai 1 to the 7th class core germplasm Huangsizhan and Huangyuezhan were reviewed.The achievements and efficiencies of rice core germplasm in quality breeding,high-yielding breeding and disease-resistance breeding were analyzed.The cruxes of rice core germplasm breeding and basic work for further development in rice core germplasm breeding were discussed.