湖南澧阳平原四处遗址陶片中水稻稃壳双峰乳突印痕的演变特征

Characters of Bi-peaked Tubercles on Rice Lemmas Printings from Broken Pottey Pieces Unearthed from 4 Excavation Sites in Liyang Flatlands, Hunan Province

用陶片稻稃印痕研究法,对澧阳平原不同年代的4处遗址水稻的演化特征作了研究,观察到其双峰乳突纵/横比都有向粳稻特征演化的倾向,但各古稻种群内都有不同比例类籼和类粳的个体存在,所以还不能将4群古稻定性为粳稻。

The evolved characters of ancient rice from 4 excavation sites in Liyang flatlands were studied with the method the printings of bi-peaked tubercles on lemmas of rice in broken pottery pieces unearthed. The results indicated that the bi-peaked tubercles had evolved toward japonica in all of 4 sites and near to present japonica with the time. But they are not japonica yet.