Core Viewpoint - The research team at Yuan Longping Rice Research Base in Inner Mongolia has successfully developed new cold-resistant rice varieties, achieving an average yield exceeding 740 kilograms per mu, with specific varieties yielding 746.6 kg and 767.5 kg per mu respectively [1][2]. Group 1: Research and Development - The new rice varieties, 'Xinglong 56' and 'Xinglong 244', were developed through multi-generational breeding in Hainan and Heilongjiang, showcasing strong tillering ability, cold resistance, disease resistance, and good maturity [2]. - The research station has been conducting breeding and cultivation technology development for high-quality, high-yield, and multi-resistant rice varieties in Northern China for seven consecutive years [2]. Group 2: Agricultural Impact - Inner Mongolia's Xing'an League, located in the recognized cold rice golden belt, has a rice planting area of approximately 1.15 million mu [2]. - The research station has collected a total of 22,935 conventional japonica rice breeding materials and 1,850 salt-alkali resistant breeding materials, with 7 new rice varieties approved and put into production [2].