| 云南稻种资源表型遗传多样性的研究 |
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| 引用本文： | 李自超,张洪亮,曾亚文,申时全,孙传清,王象坤.云南稻种资源表型遗传多样性的研究[J].作物学报,2001,27(6):832-837. |
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| 作者姓名： | 李自超 张洪亮 曾亚文 申时全 孙传清 王象坤 |
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| 作者单位： | 中国农业大学作物学院，北京 100094 |
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| 基金项目： | 本研究系973课题(批准号: G1998010201)资助和云南省省院省校合作项目(批准号98ZN07) |
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| 摘 要： | 以5285份云南省地方稻种资源为材料,以<云南稻种资源目录>中记录的31个数量和质量性状为基本数据,研究结果表明:云南稻种资源遗传多样性大,稻种类型多,优异资源丰富.云南稻种资源主要分布于思茅、临沧、文山等滇西南和滇东南地区,占总数的80%;全部稻种资源中粳稻占54%,基本表现籼粳各半;滇西南和滇东南的遗传多样性最大,粳稻
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| 关 键 词： | 云南省 稻种资源 优异资源 遗传多样性 |
| 收稿时间： | 2001-03-05 |
| 修稿时间： | 2001年3月5日 |
Studies on Phenotypic Diversity of Rice Germplasm in Yunnan, China |
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| LI Zi Chao,ZHANG Hong Liang,ZENG Ya Wen,SHEN Shi Quan,SUN C huan Qing,WANG Xiang Kun.Studies on Phenotypic Diversity of Rice Germplasm in Yunnan, China[J].Acta Agronomica Sinica,2001,27(6):832-837. |
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| Authors: | LI Zi Chao ZHANG Hong Liang ZENG Ya Wen SHEN Shi Quan SUN C huan Qing WANG Xiang Kun |
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| Institution: | LI Zi Chao 1 ZHANG Hong Liang 1 ZENG Ya Wen 2 SHEN Shi Quan 2 SUN C huan Qing 1 WANG Xiang Kun 1 |
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| Abstract: | Phenotypic diversity was studied using 5285 accessions Yunnan landrace rice, whi c h were catalogued in the national genebank, with 31 characters including taxonom ic characters, morphological characters and yield chatacters as base data. The r esults shown that Yunnan rice germplasm re sources have a huge of diversity, many rice phenotypes and elite germplasm. In Y unnan whole collection Japonica ratio is about 54%. The phenotypic diversity in southwest and southeast regions are the biggest. The diversity of Japonica is bigge r than that of Indica. Color rice, non waxy rice, fragrant rice distribute widely in yu nnan and their ratios are higher. The insect resistant, disease resistant and drought tolerant germplasm distribute widely also. But big grain, high tilli ng, high protein content and soft rice germplasm distribute limitedly, for exam ple, soft rice germplasm mainly in Dehong region, high protein content mainly i n Qujing and Honghe regions and so on. |
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| Keywords: | Yunnan province Rice germplasm resources Elite germplasm Genetic diversity |
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