| 摘要: |
| 应用因子分析方法，对40余份水稻材料的14个农艺及品质性状进行了分析。结果表明，水稻育种首先应注意整精米率、精米率、单株粒重和空秕率的改良，进而提高穗粒数。在水稻优质、高产育种过程中，可依据因子的分类，以主因子为主体进行多个性状的集团选择。由于因子间具有独立性，可依据该群体因子的相对重要性，采取有重点的逐步改良方法，以提高育种效率。 |
| 关键词: 水稻，因子分析，育种 |
| DOI： |
| 分类号:S511.103.3 |
| 基金项目:宁夏自治区科委“水稻新品种选育”课题（960102） |
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| Factor Analysis on Main Agronomic and Quality Characters of Ningxia Paddy Rice (Oryza satival) |
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| Abstract: |
| Fourteen agronomic and quality characters of 40 paddy rice varieties were analysed with the method of factor analysis.The results showed that breeding should focus on the improvement of variety characters,such as head milled rice rate,milled rice rate,seed weight per panicle and empty grain rate firstly,then seeds per panicle.For breeding objectives of good quality and high yield,multi character groups can be selected according to principal factors,which were classified into different groups.Because,these principal factors had independence and relative importance compared with other factor.Therefore, the improvement procedure may be an efficient way for rice breeding. |
| Key words: paddy rice,factor analysis,breeding |
