黍子茎秆弯曲力学性质及抗倒伏关联研究  

Research on Mechanical Properties of Panicum miliaceum Stalk Bending and Correlation of Lodging Resistance

作　　者：阴妍 王菊霞 武翠卿[1,2] Yin Yan;Wang Juxia;Wu Cuiqing(College of Agricultural Engineering,Shanxi Agricultural University,Taigu 030801,Shanxi,China;Dryland Farm Machinery Key Technology and Equipment Key Laboratory of Shanxi Province,Taigu 030801,Shanxi,China)

机构地区：[1]山西农业大学农业工程学院,山西太谷030801 [2]旱作农业机械关键技术与装备山西省重点实验室,山西太谷030801

出　　处：《农业技术与装备》2025年第2期178-181,共4页Agricultural Technology & Equipment

基　　金：晋中市科技重点研发计划(Y212014);山西农业大学博士科研项目启动项目(2021BQ87)。

摘　　要：以不同品种的黍子茎秆为研究对象,对不同节间位置的弯折力学性能进行了试验研究,分析其力学性能随节间位置的变化规律,并利用灰色关联分析法,研究了各生物力学指标与茎秆倒伏的关联度。结果表明:黍子茎秆第二节间抗弯折能力较弱,黍子茎秆弯折性能各生物力学指标与倒伏的关联度大小排序为,弯折强度>惯性矩>弹性模量>抗弯刚度。Took different varieties of Panicum miliaceum stalk as the research object,the bending mechanical properties of different internode positions were studied,and the change rule of mechanical properties with internode positions was analyzed,and the correlation degree between biomechanical indexes and stalk lodging was studied by using grey correlation analysis method.The results showed that the bending resistance between the second joint of Panicum miliaceum stems was weak,and the correlation degree between the biomechanical index of Panicum miliaceum stems bending performance and lodging was ranked as bending strength>moment of inertia>elastic modulus>bending stiffness.

关 键 词：黍子 茎秆 力学性质 抗倒伏 

分 类 号：S225.93[农业科学—农业机械化工程]