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我国长江流域及华南部分省区杂交稻常年近2亿亩。据农业部1994年统计资料,所应用的组合47.4%系“明恢63”的后代(如汕优63、特优63、协优63、Ⅱ优63等),近几年仍以“汕优63”为主。它高产稳产,熟期适中,适应性强,米质较好,近10年来在我国水稻生产上作出了突出的贡献,预计在今后若干年内仍不失为我国许多地区的当家品种。但由
Nearly 200 million mu of hybrid rice in the Yangtze River Valley and some southern provinces of China in recent years. According to the statistics from the Ministry of Agriculture in 1994, 47.4% of the combinations applied were “Minghui 63” (such as Shanyou 63, Teyou 63, Xieyou 63, Ⅱyou 63). In recent years, 63 "based. It has high and stable yield, moderate maturity, strong adaptability and good quality of rice. In the past 10 years, it has made outstanding contributions to rice production in China. It is expected that in the coming years it will remain as a leading species in many areas of our country. But by