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| 两系法杂交水稻籽粒充实度与双亲亲缘差异的相关性 | |
| 引用本文： | 陈光辉,周清明,王建龙,刘玉球.两系法杂交水稻籽粒充实度与双亲亲缘差异的相关性[J].湖南农业大学学报(自然科学版),2002,28(5):373-374,386. |
| 作者姓名： | 陈光辉 周清明 王建龙 刘玉球 |
| 作者单位： | 1. 湖南农业大学水稻科学研究所,湖南,长沙,410128 2. 湖南金健米业股份有限公司,湖南,常德,415000 3. 湖南安江农校,湖南,怀化,418000 |
| 基金项目： | 湖南金健米业股份有限公司博士后研究基金资助项目 |
| 摘 要： | 为了弄清两系法杂交水稻籽粒充实度与双亲亲缘差异的关系，确定两系杂种优势利用的最适遗传距离，选用10个籼型光温敏核不育材料作母本，6个籼型材料作父本，配制两系品种间杂交组合20个，研究两系杂交水稻籽粒充实度与双亲亲缘关系。结果表明，两系品种间（籼型）杂种F1的籽粒充实指数与其本身的程氏指数呈负相关，但相关不显著，相关系数仅为－0.1092；两系品种间（籼型）籽粒充实指数与双亲的亲缘距离（程氏指数差值）呈显著负相关，相关系数为－0.4113。 |
| 关 键 词： | 两系法杂交水稻 籽粒充实度 相关分析 杂种优势利用 遗传距离 双亲亲缘关系 |
| 文章编号： | 1007-1032(2002)05-0373-02 |
On Correlationship between Grain Plumpness of F1 Hybrids and Genetic Difference of Their Parents in Two-Line System Hybrid Rice |
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| CHEN Guang-hui ,ZHOU Qing-ming ,WANG Jian-long ,LIU Yu-qiu.On Correlationship between Grain Plumpness of F1 Hybrids and Genetic Difference of Their Parents in Two-Line System Hybrid Rice[J].Journal of Hunan Agricultural University,2002,28(5):373-374,386. | |
| Authors: | CHEN Guang-hui ZHOU Qing-ming WANG Jian-long LIU Yu-qiu |
| Institution: | CHEN Guang-hui 1,ZHOU Qing-ming 1,WANG Jian-long 2,LIU Yu-qiu 3 |
| Abstract: | In the study, 20 intervarietal hybrid combinations were obtained by crossing 10 photo-thermo-sterilities (indica) with 6 ordinary indica ones. The correlationship between grain plumpness of F 1 hybrids and genetic difference of their parents (difference value of cheng's index) was studied. The results showed that:The genetic difference of two parents (difference in cheng`s index) is significantly negatively correlated with grain plumpness in F 1 intervarietal combinations by two line-system and the correlation coefficient was -0.411 3;The correlation-ship between cheng's index of F 1 and their grain plumpness was not significant and the correlation coefficient was -0.109 2. |
| Keywords: | two-line hybrid rice grain plumpness genetic difference correlation analysis |
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