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石明松发现光敏核不育水稻，开辟了杂交稻研究的新篇章．两系法杂交稻的发展依赖于新的遗传工具，即光敏核不育水稻（ＰＧＭＲ）和温出核不育水稻（ＴＧＭＲ）。研究表明，农垦５８Ｓ系统的不育系不存在绝对的光敏不育性或绝对的温敏不育性，其育性转换都是受光温共同作用的结果．到目前为止，已育成了一批两系法品种间杂交稻组合．使型组合有ＮＡＮ７Ｓ／Ｒｇ－１、Ｎ５０８８Ｓ／Ｒ１８３、Ｎ５０８８／Ｒ１８７、３１３０１Ｓ／１５１４、７００１Ｓ／轮回４２２、７００ｌｓ／１５１４等．这些组合已在长江流域的双季稻区作晚稻种植了６０００多ｈｍ２，一般产量为６．７５～７．５０ｔ／ｈｍ２，比同生育期的常规粳稻品种鄂晚５号和鄂宜１０５等增产１０％～１５％，与同生育期的三系杂交籼稻汕优６４等产量持平．此外，具更强优势的亚种间杂交稻组合也已初步选出。
Shi Ming-song found photosensitive nuclear-sterile rice, opened up a new chapter in hybrid rice research. The development of two-line hybrid rice relies on new genetic tools, namely photo-sensitive genic male sterile rice (PGMR) and thermo-grafted nuclear sterile rice (TGMR). The results showed that there were no absolute photosensitive or absolute thermo-sensitive sterile in Nongken 58S CMS, and fertility conversion was the result of light and temperature interaction. So far, a number of hybrid rice combinations have been bred. The combination of type NAN7S / Rg-1, N5088S / R183, N5088 / R187, 31301S / 1514,7001S / reincarnation 422,700 ls / 1514 and so on. These combinations have planted more than 6,000 hm2 of late rice in the double cropping paddy in the Yangtze River valley with a typical yield of 6.75-7.50 t / hm2, which is higher than that of conventional late rice varieties E’5 and E’e 105 at the same growing stage 10% -15%, which is consistent with the yield of the three-line indica hybrid rice Shanyou 64 with the same growth period. In addition, a more dominant subspecific hybrid rice combination has also been initially selected.