系统介绍了两优289母本核心种子生产、海南冬季繁殖技术,以及父本生产繁殖技术,为两优289制种生产提供合格优良的亲本。2013年繁殖不育系1892S 15.3 hm~2,平均有效穗数226.5万/hm~2,每穗总粒数165.5粒、实粒数138.9粒,结实率83.9%,千粒重23.0 g,产量5 788.5 kg/hm~2,纯度达99.98%以上。 This paper introduced the production of Liang You 289 female parent seed, winter breeding in Hainan, and the reproductive technology of male parent, which provided good and qualified parents for the production of Liangyou 289 seed. In 2013, CMS1892S was 15.3 hm ~ 2, the average number of effective spikes was 2.265 million / hm ~ 2, the number of total grains per spike was 165.5, the number of real grains was 138.9, the seed setting rate was 83.9%, the weight of thousand grains was 23.0 g and the yield was 5 788.5 kg / hm ~ 2, purity of 99.98% or more.