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密阳23系南朝鲜七十年代培育出的籼、粳稻杂交后代,先后在南朝鲜和日本南部大面积推广,被日本列为世界超高产品种之一。1980年安徽农科院由日本引进,迅速繁殖推广,1984年信阳地区引进试种成功。
Miaoyang23 is a cross-breeding progeny of Indica and Japonica cultivated in South Korea in the 1970s. It has been extensively popularized in south Korea and southern Japan and ranked as one of the super-high-yielding varieties in the world by Japan. In 1980, Anhui Academy of Agricultural Sciences was introduced by Japan and rapidly propagated and popularized. In 1984, the introduction of planting and breeding was successful in Xinyang area.