优ⅠＡ５３是广东省韶关市提纯建立起来的优良株系。它显著的育性特点是不育度比较高而且稳定，自交Ｆ１结实率很低，适宜低代利用，并提出了安全利用模式和相应对策。 Excellent Ⅰ A53 is Shaoguan City, Guangdong Province, purified the establishment of excellent strains. Its remarkable characteristics of fertility is that its sterility is relatively high and stable. The rate of self-cross F1 seed setting is very low, which is suitable for low generation utilization. The safe utilization mode and corresponding countermeasures are also proposed.