The article discusses the breeding of super hybrid japonica rice in North China, specifically in Liaoning. Researchers used various methods like combining indica and japonica rice, utilizing hybridism, and ecological breeding to create new hybrid rice types. They successfully bred the restorer C2106, which showed great potential. The new hybrid rice combinations like Liaoyou2006 and Liaoyou2016 based on C2106 had higher yields, better quality, and resistance in Liaoning and other northern rice regions. Overall, the research on super hybrid japonica rice in Liaoning has led to significant advancements in rice breeding.