| Characteristics of the short rachillae of rice from archaeological sites dating to 7000 years ago |
| |
| 作者姓名： | ZHENG YunFei SUN GuoPing CHEN XuGao |
| |
| 作者单位： | Zhejiang Province Institute of Relics and Archaeology, Hangzhou 310014, China |
| |
| 基金项目： | Supported by Zhejiang Provincial Departmenl of Culture and Zhejiang Provincial Department of Finance |
| |
| 摘 要： | The abscission layer formed on a pedicel situated at the basal part of a short rachilla is an important characteristic for discriminating between wild, japonica, and indica rice. The short rachillae of paddy rice grains excavated from the Kuahuqiao, Luojiajiao, and Tianluoshan sites, located in the lower reaches of the Yangtze River and dating to 7000 years old, were observed. The results showed that the short rachillae could be divided into two types: a wild type and japonica type. These results indicated that the rice had been domesticated, but was a primitive cultivated rice that retained some of the characteristics of wild rice. The results also suggested that the rice was changing to resemble japonica type rice. Based on the ratios of wild and japonica types, it was inferred that rice domestication began 10000 years ago.
|
| 关 键 词： | 考古学 水稻 农业生产 栽培技术 |
| 收稿时间： | 2 November 2006 |
| 修稿时间： | 2006-11-022007-04-02 |
Characteristics of the short rachillae of rice from archaeological sites dating to 7000 years ago |
| |
| ZHENG YunFei SUN GuoPing CHEN XuGao.Characteristics of the short rachillae of rice from archaeological sites dating to 7000 years ago[J].Chinese Science Bulletin,2007,52(12):1654-1660. |
| |
| Authors: | Zheng YunFei Sun GuoPing Chen XuGao |
| |
| Institution: | (1) Zhejiang Province Institute of Relics and Archaeology, Hangzhou, 310014, China |
| |
| Abstract: | The abscission layer formed on a pedicel situated at the basal part of a short rachilla is an important characteristic for discriminating between wild, japonica, and indica rice. The short rachillae of paddy rice grains excavated from the Kuahuqiao, Luojiajiao, and Tianluoshan sites, located in the lower reaches of the Yangtze River and dating to 7000 years old, were observed. The results showed that the short rachillae could be divided into two types: a wild type and japonica type. These results indicated that the rice had been domesticated, but was a primitive cultivated rice that retained some of the characteristics of wild rice. The results also suggested that the rice was changing to resemble japonica type rice. Based on the ratios of wild and japonica types, it was inferred that rice domestication began 10000 years ago. |
| |
| Keywords: | archaeological sites rice short rachillae abscission layers domestication |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
| 点击此处可从《中国科学通报(英文版)》浏览原始摘要信息 |
| 点击此处可从《中国科学通报(英文版)》下载免费的PDF全文 |
