在大田条件下以桃优香占、隆晶优1号为材料,研究了不同秧龄移栽对优质杂交晚稻生育期、产量和稻米品质的影响。结果表明:随着秧龄期延长,齐穗期、成熟期推迟,全生育期延长,大田生育期缩短;随着秧龄期延长,产量呈现先增加后降低趋势,以25 d秧龄移栽的处理产量最高,长秧龄(35 d)移栽的处理产量最低;此外,25 d秧龄移栽的处理整精米率高、垩白粒率和垩白度低、蒸煮品质好。为实现优质高产,桃优香占的适宜秧龄为25~30 d,隆晶优1号的适宜秧龄为20~25 d。 The effects of transplanting at different seedling age on the growth period, yield and grain quality of late hybrid rice were studied under field conditions with Tao You Xiang Xiang and Long Jing You 1 as materials. The results showed that with the extension of the seedling age, the heading date and maturity were postponed, the whole growth period was extended and the growth period of the field was shortened. With the extension of the seedling age, the yield increased at first and then decreased, The highest transplanting length was the lowest in the long-seedling age (35 d). In addition, the 25 d seedling transplanting had the advantages of high rate of whole rice milled, low chalky grain rate and low chalkiness, and good cooking quality. In order to achieve high quality and high yield, the optimum seedling age for Peach Youxiang was 25-30 days, and the suitable seedling age for Longjingyou No.1 was 20-25 days.