Effects of different Rht-B1b, Rht-D1b and Rht-B1c dwarfing genes on agronomic characteristics in wheat

被引：29
|
作者：
Li, Xing-Pu [1 ]
Lan, Su-Que
Liu, Yu-Ping
Gale, M. D.
Worland, T. J.
机构：
[1] Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Shijiazhuang 050031, Peoples R China
[2] John Innes Ctr Plant Sci Res, Norwich NR4 7UH, Norfolk, England
来源：
CEREAL RESEARCH COMMUNICATIONS | 2006年 / 34卷 / 2-3期
关键词：
wheat (Triticum aestivum L.); dwarfing gene; near-isogenic line (NILs); agronomic characteristics;
D O I：
10.1556/CRC.34.2006.2-3.220
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
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.
引用
收藏
页码：919 / 924
页数：6
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