:“V5 0 2 5”系用迟熟早籼良种“86-70”选系干种子 ,搭载返回式遥感科学卫星 ,经太空诱变作用后 ,选择早熟突变体 ,定向培育而成。该品种属早熟偏迟类型 ,具有分蘖力中等、穗大粒多、千粒重较重、丰产稳产、米质较优、后期落色好、对稻瘟病等抗逆性强、需肥中等、适应性广、农艺性状全面优于地面对照亲本等优点 ,适宜在江西省推广种植。讨论了空间技术育种的优点、方法、程序和技术流程 : “V5 0 2 5” is a line of late-indica elite “86-70” selected lines of dry seeds, equipped with return-type remote sensing science satellite, after space mutagenesis, the selection of precocious mutants, directed cultivation. The varieties are premature mature type, with medium tillering ability, spike large grain, heavy grain weight, high and stable yield, better quality of rice, late fall color, blast resistance and other strong, moderate need fertilizer, wide adaptability , Agronomic traits are superior to those of ground-control parents in general and are suitable for popularizing planting in Jiangxi Province. The advantages, methods, procedures and technical processes of space technology breeding are discussed