中国水稻科学

中国水稻科学

• 研究简报 • 上一篇    下一篇

水稻杂种后代籽粒蛋白质含量的分离和变异

何光华 1;谢 戎 1;郑家奎 1;阴国大 1;杨正林 1;左永树 1;黄建国 2;邵启明 2   

  1. 1 四川省农业科学院水稻高粱研究所，泸州 646100； 2 西南农业大学，重庆 630716
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1997-04-10 发布日期:1997-04-10

Genetic Variability of Protein Content of Grain in Rice Hybrid Progenies

He Guanghua; Xie Rong; Zheng Jiakui; Yin Guoda; Yang Zhenglin; Zuo Yongquan; Zuo Yongshu; Huang Jianguo; Shao Qiming   

  • Received:1900-01-01 Revised:1900-01-01 Online:1997-04-10 Published:1997-04-10

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摘要： 选用Lemont、CPSLO17、02428、明恢63、培矮64、IR36等6个蛋白质含量高低不同的材料作亲本配制杂交组合，进行籽粒蛋白质含量的分析。结果显示F2及回交世代分离大、变异广，有部分植株超过了高值亲本，因此，可从F2或回交世代就进行单株选择。双亲蛋白质含量对后代有影响，但母本作用更大。建议选配组合时以高含量作母本为宜，若要进行回交选育，宜用高含量的母本作轮回亲本。

关键词: 蛋白质含量, 遗传变异, 杂种后代

Abstract: P1, P2, F1, F2, B1, B2 in five combinations were used as materials and the genetic variability of grain protein content were analyzed. The results show protein content in rice grain belongs to quantitative traits controlled by polygene, F1 and backcross generations present approximately normal distribution in continuous variation. There are some plants whose protein content of grain are higher than parents with high content among segregating generations. Selection was undertaken beginning with low generations, it is probable to obtain fine individuals. Parents' protein content affects progenies, whereas the female parents have much bigger effect. It is beneficial to use parents with high protein content as female parents in breeding combinations.

Key words: hybrid progeny, genetic variability, protein content