文献类型： 外文期刊

作者： Li, Xing-Pu ¹ ; Lan, Su-Que ² ; Liu, Yu-Ping ² ; Gale, M. D. ² ; Worland, T. J. ² ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Shijiazhuang 050031, Peoples R China

2.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Shijiazhuang 050031, Peoples R China; John Innes Ctr Plant Sci Res, Norwich NR4 7UH, Norfolk, England

关键词： wheat (Triticum aestivum L.);dwarfing gene;near-isogenic line (NILs);agronomic characteristics

期刊名称：CEREAL RESEARCH COMMUNICATIONS （ 影响因子：0.85； 五年影响因子：1.067 ）

ISSN： 0133-3720

年卷期： 2006 年 34 卷 2-3 期

页码：

收录情况： SCI

摘要： The value of different dwarfing genes in winter wheat breeding was studied using 6 near-isogenic lines carrying different Rht dwarfing genes over three years experiment. Results showed that both the Rht-B1b and Rht-D1b semi-dwarfing genes had significantly positive effects on kernel number and grain weight per spike, and had significantly negative effects on 1000-grain weight comparing to the tall line (Rht-B1a). The Rht-B1c dwarfing gene had a significantly negative effect on kernel number per spike, and had positive effect on 1000-grain weight. The combination of the Rht-D1b and Rht-B1c gene showed significantly negative effect on yield components. All of these 5 dwarfing or semi-dwarfing genotypes mentioned above had significantly negative effect on plant height and no significantly effect on the area of flag leaf, spikelets per spike and spike length.