| 摘要: |
| 为了培育适合上海地区种植的香软优质国庆稻,本研究以“松早香1号”和“上师早早香”为亲本进行杂交（F1）并连续自交（至F4）,结合软米基因分子标记辅助筛选和田间农艺性状选择,成功培育出优质香软国庆稻“香软早粳”新品系.与“松早香1号”相比,“香软早粳”成熟期提前了15 d,每亩（约666.67 m2）产量可增加84.9 kg,不仅提早了国庆稻的上市时间,同时提高了种植国庆稻的经济效益.稻米品质检测结果显示,“香软早粳”稻米直链淀粉含量（质量分数）为9.7%,胶稠度达80 mm.“香软早粳”含有香味基因,属于优质香软米.“香软早粳”新品系的成功选育为上海地区推广特早熟香型软米水稻奠定了基础. |
| 关键词: 国庆稻 香米 软米 分子标记辅助选择 |
| DOI：10.20192/j.cnki.JSHNU（NS）.2024.05.009 |
| 分类号:S511 |
| 基金项目:上海市科委现代农业科技创新项目（22N11900100） |
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| Development of “Xiangruan Zaogeng” National Day rice by molecular marker assisted selection |
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LIU Xiaoyan1, ZONG Shipeng1, CAO Weizhao2, ZHAO Guochao1, LI Jianyue1
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1.College of Life Sciences, Shanghai Normal University, Shanghai 200234, China;2.Shanghai Shangshi Modern Agricultural Development Co., Ltd., Shanghai 202183, China
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| Abstract: |
| In order to obtain high-quality fragrant and soft National Day rice suitable for cultivation in Shanghai, “Songzaoxiang No.1” and “Shangshi Zaozaoxiang” crossed to produce F1, which was self-crossed till F4, accompanied simultaneously by soft rice gene molecular marker assisted screening and field agronomic trait selection, producing ultimately, a new soft rice line with high-quality fragrant, named as “Xiangruan Zaogeng”. Compared with “Songzaoxiang No.1”, the maturation of “Xiangruan Zaogeng” was 15 d ays early, its yield was also increased by 84.9 kg/mu （~ 666.67 m2）, entering the market earlier and getting better economic benefits. The quality testing results showed that the amylose content of "Zaogeng" was 9.7%, gel consistency was 80 mm, and have aroma genes, belonging to high-quality fragrant soft rice. The successful breeding of the “Xiangruan Zaogeng” lays the foundation for the promotion of early maturing fragrant and soft rice in Shanghai. |
| Key words: National Day rice fragrant rice soft rice molecular marker assisted selection |
