水稻不育系元丰A组配弱感光杂交稻的利用研究

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基金项目:

福建省科技计划重点项目(2008N0131);三明市科技计划项目(2007-L-4)

Using sterile rice,Yuanfeng A,for breeding low-photosensitive hybrid

1.
Sanming Institute of Agricultural Sciences, Shaxian, Fujian 365509, China;
2.
Rice Rescarch Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350003, China

摘要: 考查三系不育系元丰A的遗传特性,结果表明:元丰A具有开花习性好、抗性强、米质优、配合力好等优点,其配制组合抽穗期遗传表现与博白A组合相似,抽穗期是否超亲(感光)取决于不同生育期类型的恢复系。配制弱感光杂交稻表现优势强、抗性好、米质优,可作为抗病、优质三系杂交稻选育的亲本。
- 三系不育系 /
- 元丰A /
- 弱感光特性 /
- 抗病 /
- 优质 /
- 利用
Abstract: Genetic characteristics of CMS line Yuanfeng A rice were studied in preparation of breeding a low-photosensitive hybrid.The results showed that Yuanfeng A had the desirable flowering trait,disease resistance,grain quality and crossing ability.The genetic performances at the heading stage of the cross-combinations generated from it were similar to those from Bobai A.Whether the phenotype(photosensitivity) appears in their hybrid F1 at heading stage or not depended on the work of the restorer line at different growth periods.The resultant hybrid showed strong heterosis,improved resistance and excellent grain quality.Therefore,Yuanfeng A was believed to be a potential candidate for breeding high quality three-line hybrid rice.
- CMS line /
- Yuanfeng A /
- low-photosensitivity /
- disease resistance /
- high quality /
- utilization