嘉禾优5号是由中国水稻研究所、嘉兴市农业科学研究院、中国科学院遗传与发育生物学研究所和浙江勿忘农种业股份有限公司联合选育的强优势籼粳杂交稻组合，其生育期较早，分蘖力中等，叶色较淡，米质优，穗粒结构协调，高产潜力大。嘉禾优5号在2021年超级稻百亩方测产验收中平均产量达到831.8 kg/667 m²。文章总结了嘉禾优5号特征特性及主要栽培技术。

Jiaheyou 5 is a strong advantage indica-japonica hybrid rice combination bred by China National Rice Research Institute, Jiaxing Academy of Agricultural Sciences, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences and Zhejiang Wuwangnong Seeds Shareholding CO., Ltd.. It has the characteristics of early maturity, middle tillering ability, light leaf color, high rice quality, coordinated panicle-grain structure and high yield potential. In the large-scale demonstration of super rice in 2021, the average yield of Jiaheyou 5 reached 831.8 kg/667 m². The article summarized the characteristics of Jiaheyou 5 and the main points of high-yield cultivation techniques.