The Breeding and Spreading of New Good Quality Early Indica Rice

After 30 years′ dedicated research,we have established a set of technology of screening new good quality rice germplasms mainly based on mature pollen mutation by γ-ray irradiation,selected a lot of new good quality indica germplasms with long-big grain and low chalkiness by self-creating breeding method for good quality early indica rice,mapped some QTLs conferring indica rice quality based on SSR markers and set up a practical marker-assisted selection technology.Under new technologies,six new high-quality early indica rice cultivars,such as Jiahezaozhan,Jiafuzhan and Jiazao No.1,have been successfully developed.Its quality has almost reached the standard of good quality Editable Rice of Agriculture Department of China.These cultivars also have other characteristics such as enhanced resistance of blast and shattering,steady productivity and strong adaptability.Jiahezaozhan and Jiafuzhan have been put into production of over 66.67×104 hm2 in Fujian province.The successes of these cultivars is a solution to long existed problems in rice industry,such as low quality of big grain rice and early indica rice,low productivity and poor blast resistance of high quality rice.Our researches also have achieved much helpful experience and found abundant germplasms and practical technology and method for good quality high-yielding rice breeding in the future.