| 不同矮秆基因对冬小麦农艺性状的影响 |
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| 引用本文： | 李杏普,蒋春志.不同矮秆基因对冬小麦农艺性状的影响[J].作物学报,1998,24(4):475-478. |
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| 作者姓名： | 李杏普 蒋春志 |
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| 作者单位： | 河北省农林科学院粮油作物研究所，河北石家庄，050031 |
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| 摘 要： | 利用以冬麦品种ＭａｒｉｓＨｕｎｔｓｍａｎ为背景的含有不同矮杆基因Ｒｈｔ１，Ｒｈｔ２和Ｒｈｔ３及其不同结合形式的６个近等基因系，研究了不同矮秆基因对小麦农艺性状的作用，结果表明，Ｒｈｔ１半矮秆基因显著提高了单株穗数，粒数和粒重，地下部生物产量，经济系数和倒二叶面积，Ｒｈｔ２半矮秆基因显著提高了单株（或单穗）粒数和粒重，经济系数和倒二叶面积，显著降低了千粒重，Ｒｈｔ３矮秆基因对单株粒数，地上部生物产量
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| 关 键 词： | 冬小麦 矮秆基因 半矮秆基因 农艺性状 育种 |
| 收稿时间： | 1996-02-27 |
| 修稿时间： | 1996-11-10 |
Effects of Different Dwarfing Genes on Agronomic Characteristics of Winter Wheat |
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| Li Xingpu Jiang Chunzhi Liu Hongling.Effects of Different Dwarfing Genes on Agronomic Characteristics of Winter Wheat[J].Acta Agronomica Sinica,1998,24(4):475-478. |
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| Authors: | Li Xingpu Jiang Chunzhi Liu Hongling |
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| Institution: | Institute of Cereal and Oil Crops,Hebei Academy of Agricultural and Forestry Sciences,Shijiazhuang 050031 |
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| Abstract: | The effect of different dwarfing genes on agronomic characteristics of winter
wheat was studied by using 6 near-isogenic lines carrying the Rht1, Rht2 and Rht3 dwarfing
genes, with different combination in same genetic background of winter wheat (Maris
Huntsman). Results showed that Rhtl as a semi-dwarfing gene had significantly positive effects
on spikes, kernels and grain weight per plant, above ground biomass, harvest index and the area
of the leaf bellow flag leaf, Rht2 as a semi-dwarfing gene had significantly positive effect on ker
nels and grain weight per plant or per spike, harvest index and the area of the leaf bellow flag leaf
and significantly negative effect on 1000-grain weight, Rht3 as a dwarfing gene had significantly
negative effect on Kernels per plant and above ground biomass and had positive effect on harvest
index. The interaction between Rhtl and Rht2 showed significantly positive effect on harvest in
dex and the interaction between Rht2 and Rht3 genes showed significantly negative effect on
yield components, biomass above ground and harvest index. All of these 5 genotypes mentioned
above had significantly negative effect on plant height and no effect on the area of flag leaf, spike
length and spikelets per spike. |
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| Keywords: | Winter wheat Dwarfing gene Semi-dwarfing gene Near-isogenic line Agronomic characteristic |
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