Abstract: To understand state quo of the utilization of high-quality hybrid rice varieties in China, the information of high-quality hybrid rice varieties with promotion area exceeded 6 700 hm² during 2001-2017 were collected and analyzed. The results showed that: (1) The number of high-quality hybrid rice combinations sharply increased from 19 to 214 during the 17 years, and the proportion of their planting area increased from 10% (1 232 000 hm²) in 2001 to 60% (7 062 000 hm²) in 2017; (2) The numbers of high-quality two-line and three-line hybrid rice combinations with annual promotion area exceeded 6 700 hm² were 133 and 382 respectively, with total annual promotion area of 25 659 000 hm² and 53 750 000 hm² , respectively; (3) The quality indexes including the head rice rate, amylose content, gel consistency, chalky grain percentage and chalkiness degree of the main planting varieties were significantly improved; (4) The seed companies were more focused on the high-quality two-line hybrid rice breeding and promotion, while the public breeding institutions had advantage in the high-quality three-line hybrid rice breeding; 5) The photo-thermo-sensitive genic male sterile (PTGMS) lines used large-scale in the high-quality two-line hybrid rice breeding were Y58S, Guangzhan 63S and Guangzhan 63-4S, etc., while the cytoplasmic male sterility (CMS) lines used large-scale in the high-quality three-line hybrid rice breeding were Zhong 9A, Yixiang 1A and Tianfeng A, etc. Yangdao 6, Guanghui 998, Shuhui 527 and Huazhan, etc. were the key restorer lines for high-quality three-line hybrid rice breeding. In addition, problems existed in high-quality rice breeding were analyzed, and countermeasures for the quality improvement were proposed. This study could provide guidance for breeding and promotion of high-quality hybrid rice in future.

Key words: high-quality hybrid rice, breeding, two-line hybrid rice, three-line hybrid rice