Abstract: The characters of 782 grains of ancient cultivated rice at 8000 BP from Bashidang site in Lixian county were studied in various methods. The ancient cultivated rice was an independent and complicated colony with great variations which are more closed to indica and O.rufipogon; and an original and transitional state of it in the position of evolution were observed. It was deduced to be an original type of cultivated rice which had completely developed in nature without any artificial selection.

Key words: ancient cultivated rice, archaeology, evolution, Oryza rufipogon, rice

摘要： 用多种方法对1997年湖南澧县八十垱遗址出土的782粒8000 年前的古栽培稻谷的粒形等性状分析研究，观察到该古栽培稻是一个具有广泛性状变异性的不同于现代籼、粳、普通野生稻的近野生稻偏籼型的独立复合群体，且在演化地位上具有原始性和过渡性的特征。初步认定其为一个完全无人工选择条件下长期演化而成的原始栽培稻类型。

关键词: 古栽培稻, 考古, 进化, 野生稻