| 不同矮杆大豆品种的耐密性研究 |
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| 引用本文： | 刘念析,董志敏,厉 志,陈 亮,刘 浩,衣志刚,王 博,刘宝权.不同矮杆大豆品种的耐密性研究[J].农学学报,2020,10(1):1-6. |
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| 作者姓名： | 刘念析 董志敏 厉 志 陈 亮 刘 浩 衣志刚 王 博 刘宝权 |
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| 作者单位： | 吉林省农业科学院大豆研究所,长春 130033 |
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| 基金项目： | 吉林省农业科技创新工程-博士科研启动基金项目“大豆灰斑病室内鉴定体系的建立及分子标记的开发”(C92070421 |
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| 摘 要： | 为了明确合理的矮杆密植大豆群体结构,为实现大豆超高产育种目标奠定理论基础。以4个不同基因型矮杆大豆品种为试验材料,设置了8个不同的密度梯度,调查分析产量相关性状,筛选最适宜的种植密度。结果表明,随着密度的递增,株高表现为逐渐增加;单株荚数及粒数则表现为逐渐下降;产量呈现先增加后减少的趋势;倒伏率在达到一定密度时出现急剧上升。‘吉密豆1号’、‘吉密豆2号’、‘吉密豆3号’、‘吉密豆4号’的最佳种植密度分别为40万株/hm 2、37.5万株/hm 2、40万株/hm 2和56万株/hm 2,产量分别可达4199.2 kg/hm 2、3282.3 kg/hm 2、3410.1 kg/hm 2和3313.4 kg/hm 2。因此,合理的增加种植密度,可进一步挖掘矮杆耐密型大豆的高产潜力。
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| 关 键 词： | 大豆 矮杆 密度 倒伏 产量 |
| 收稿时间： | 2019/10/17 0:00:00 |
| 修稿时间： | 2019/12/10 0:00:00 |
The Density Tolerance of Dwarf Soybean Varieties |
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| Liu Nianxi,Dong Zhimin,Li Zhi,Chen Liang,Liu Hao,Yi Zhigang,Wang Bo,Liu Baoquan.The Density Tolerance of Dwarf Soybean Varieties[J].Journal of Agriculture,2020,10(1):1-6. |
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| Authors: | Liu Nianxi Dong Zhimin Li Zhi Chen Liang Liu Hao Yi Zhigang Wang Bo Liu Baoquan |
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| Institution: | Soybean Research Institute, Jilin Academy of Agricultural Sciences, Changchun 130033, Jilin, China |
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| Abstract: | To clarify the reasonable dwarf and dense-planted population structure of soybean and establish a theoretical basis for super high yield breeding of soybean, four dwarf soybean varieties of different genotypes were used as materials, and eight density gradients were set up. The yield-related traits were investigated and analyzed, and the most suitable planting density was screened. The results show that the plant height gradually increases with the density increasing; the number of pods and grains per plant gradually decrease; the yield has a trend of increasing firstly and then decreasing; the lodging rate increases dramatically when the density reaches a certain degree. The optimal plant density for ‘Jimidou-1’, ‘Jimidou-2’, ‘imidou-3’ and ‘Jimidou-4’ is 400000 plants/hm 2, 375000 plants/hm 2, 400000 plants/hm 2 and 560000 plants/hm 2, respectively, and the yield reaches 4199.2 kg/hm 2, 3282.3 kg/hm 2, 3410.1 kg/hm 2 and 3313.4 kg/hm 2, respectively. Therefore, the high-yield potential of dwarf and high-density tolerant soybean varieties can be further tapped by increasing the density reasonably. |
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| Keywords: | Soybean Dwarfism Density Lodging Yield |
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