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Genetic Dissection and Improvement of Grain Yield Traits in Hybrid Rice through Selective Introgression

This study focuses on the genetic enhancement and dissection of grain yield and related traits in hybrid rice (Oryza sativa L.) utilizing selective introgression techniques. Data includes means and standard deviations of various traits across different years and hybrids, revealing the performance of each hybrid. The findings underscore the potential for simultaneous improvement in grain yield, providing insights for future rice breeding programs. Correspondence related to this study can be directed to the Institute of Crop Sciences, Chinese Academy of Agricultural Sciences.

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Genetic Dissection and Improvement of Grain Yield Traits in Hybrid Rice through Selective Introgression

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  1. a Mean ± SD (ILs): 26.6 ± 4.1 (07AH), 27.3 ± 6.7 (08AH) and 22.3 ± 4.4 (08HN) b Mean ± SD (ILs): 115.6 ± 4.3 (07AH), 115.6 ± 4.1 (08AH) and 104.8 ± 3.9 (08HN) c 07AH 08AH 08HN Mean ± SD (ILs): 91.4 ± 1.4 (08AH) and 109.9 ± 2.6 (08HN) d Mean ± SD (ILs): 6.3 ± 0.9 (07AH), 7.2 ± 1.0 (08AH) and 6.4 ± 1.3 (08HN) e Mean ± SD (ILs): 166.6 ± 21.7 (07AH), 150.7 ± 26.4 (08AH) and 121.1 ±16.2 (08HN) f Mean ± SD (ILs): 145.7 ± 21.2 (07AH), 132.0 ± 22.5 (08AH) and 110.6 ±16.2 (08HN) g Mean ± SD (ILs): 87.4 ± 4.9 (07AH), 87.7 ± 4.5 (08AH) and 91.3 ±4.5 (08HN) h Mean ± SD (ILs): 29.2 ±2.0 (07AH), 29.0 ±1.9 (08AH) and 31.9 ±2.4 (08HN)

  2. Molecular Breeding Simultaneous improvement and genetic dissection of grain yield and its related traits in a backbone parent of hybrid rice (Oryza sativa L.) using selective introgression Hongjun Zhang, Hui Wang,Yiliang Qian, Jiafa Xia, Zefu Li, Yingyao Shi, Linghua Zhu, Jauhar Ali,YongmingGao, and Zhikang Li Correspondence should be addressed to YongmingGao and Zhikang Li (Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, 100081 Beijing, China; E-mail: irriygao@126.com and zhkli@yahoo.com.cn or zhkli1953@126.com; Tel: +86-10-8210-6697 and Fax: +86-10-8210-8559)

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