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对长江下游迄今为止发现的最古老的新石器时代遗址———河姆渡遗址、罗家角遗址进行了植物硅酸体分析 ,结果在两遗址出土的陶器碎片中发现了起源于水稻叶片运动细胞硅酸体。硅酸体的形状解析结果表明 :来自两遗址的硅酸体断面形状大致相同 ,而在大小方面存在显著差异。利用硅酸体形状亚种判别函数进行判别 ,结果河姆渡遗址的稻为粳稻 ,罗家角遗址的稻为籼稻。研究结果表明两遗址的栽培稻群体具有不同系统特性 ,为长江下游的水稻系统演化及稻作起源研究提供了有意义的实证数据。
Plant silicate analysis of the most ancient Neolithic sites discovered to date in the lower reaches of the Yangtze River - the Hemudu site and the Luojiajiao site - resulted in the discovery of motile cell silicon originating from rice leaves Acid. The shape analysis of the silicic acid body shows that the shapes of the silicic acid bodies from the two sites are roughly the same, but the sizes are significantly different. The silicate body shape subspecies discrimination function was used to discriminate. As a result, Hemudu ruins rice was japonica rice and Luojiajiao ruins was indica rice. The results showed that the cultivated rice populations in two sites had different systematic characteristics and provided meaningful empirical data for the evolution of the rice system and the origin of rice in the lower reaches of the Yangtze River.