| 小麦茎秆弯曲特性与密度间的关系研究 |
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| 引用本文： | 袁志华,李英俊.小麦茎秆弯曲特性与密度间的关系研究[J].安徽农业科学,2009,37(32):15775-15775. |
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| 作者姓名： | 袁志华 李英俊 |
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| 作者单位： | 中国矿业大学(北京)力学建筑学院,北京,100083;河南农业大学机电工程学院,河南郑州,450002;中国矿业大学,北京,力学建筑学院,北京,100083 |
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| 摘 要： | 目的]研究小麦茎秆弯曲特性与密度间的关系。方法]测定郑麦9023和豫麦25茎秆基部第二节问的弹性模量、弯曲强度、抗弯刚度、密度及含水率。结果]结果表明，在小麦灌浆期，茎秆基部弹性模量、惯性矩、抗弯刚度及密度在品种间存在显著差异（P〈0．05），弯曲强度及含水率在品种间无显著差异（P〉O．05）；且其基部第二节间的弹性模量、弯曲强度、抗弯刚度与密度成正相关关系，与含水率成负相关关系。结论]该研究结果为小麦的高产栽培、抗倒伏研究提供了参考依据。
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| 关 键 词： | 小麦茎秆 弯曲特性 密度 含水率 |
Study on Relationship between Bending Property and Density of Wheat Stem |
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| YUAN Zhi-hua et al ,Beijing.Study on Relationship between Bending Property and Density of Wheat Stem[J].Journal of Anhui Agricultural Sciences,2009,37(32):15775-15775. |
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| Authors: | YUAN Zhi-hua Beijing |
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| Institution: | YUAN Zhi-hua et al (School of Mechanics & Civil Engineering,China University of Mining & Technology (Beijing),Beijing 100083) |
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| Abstract: | Objective] The aim was to research the relationship between bending property and density of wheat stem.Method] The bending properties such as elastic modulus,flexural strength,flexural rigidity,moment of inertia,density and water content of the second base internode of Zhengmai 9023 and Yumai 25 were determined.Result] The results showed that during filling stage,there were significant differences in elastic modulus,moment of inertia,flexural rigidity and density among wheat varieties (P<0.05),meanwhile,... |
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| Keywords: | Wheat stalk Bending property Density Water content |
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