优种小麦不同生长期茎秆及主根生物力学性质实验研究  

Experimental Study on the Biomechanical Properties of Fine Variety Wheat's Stalk and Taproot in Different Growth Periods

作　　者：武翠卿[1] 刘娅杰 王仁杰[1] 冯旗旗 郭玉明[1] 

机构地区：[1]山西农业大学工学院,山西太谷030801

出　　处：《农机化研究》2017年第9期154-157,168,共5页Journal of Agricultural Mechanization Research

基　　金：高等学校博士点专项科研基金项目(20111403130001);山西省重点实验室基金项目(2013011066-9)

摘　　要：小麦优种培育中抗倒伏性能是其重要的评价内容,而抗倒伏性可运用其茎秆及主根生长后期的生物力学性质指标来表达和评判。为此,针对黑芒麦、CA0547和烟农19等3种优种小麦和成熟对照样本(山农129),进行了不同生长期小麦茎秆不同节间段弯曲强度,剪切强度、抗弯刚度、弹性模量等力学性质指标,以及与其对应生长期主根的拉伸强度、剪切强度、弹性模量等力学性质指标的试验研究和分析。研究结果为小麦优种培育采取相应工程措施和相关作业装备设计提供了理性支持和试验参数。Anti-lodging is an important evaluation in the cultivation of fine variety wheat, and it can be expressed and judged by it＇ s biomechanical properties of stalk and root at later stages. In this paper,the mechanical properties of different growth period of wheat stalk internode segment,including flexural strength, shear strength, bending stiffness, elasticity modulus, and the mechanical properties of taproot which corresponding to the growth periods, including tensile strength, shear strength, elasticity modulus, were experimental researched and analysed. The results provide rational support and reference for the cultivation of fine variety wheat varieties to take corresponding engineering measures.

关 键 词：优种小麦 小麦茎秆 主根 生物力学性质 抗倒伏评价 

分 类 号：S121[农业科学—农业基础科学] S183