安协Ｓ是利用安农Ｓ－１与协青早杂交转育出的早籼中熟两系法核不育系。多年来在自然条件下，其不育性稳定，不育期长，配组优势强，育性转换明显。主要介绍该材料的选育经过及初步测配情况。 Anxie S is the use of Annong S-1 and early hybrid cross-breeding of indica rice middle-maturing two-line nuclear sterile lines. Over the years under natural conditions, its sterility is stable, sterile period is long, with strong group, fertility conversion obvious. The introduction of the material after the initial selection and distribution of the situation.