不同抗倒性小麦品种的茎秆结构及其化学成分和力学特性分析  

Analysis of microstructure of stem and its chemical composition and mechanical property in different lodging resistance wheat cultivars

作　　者：杨霞[1] 王红娟[2] 徐文静[2] 陈军营[2] 

机构地区：[1]河南职业技术学院,河南郑州450032 [2]河南农业大学农学院,河南郑州450002

出　　处：《河南农业大学学报》2012年第4期370-373,共4页Journal of Henan Agricultural University

基　　金：河南省重点科技攻关项目(112102110024)

摘　　要：研究了六倍体小黑麦及普通小麦中国春、大粒1号茎秆微观结构、化学成分、弯曲强度和弹性模量等力学特性,结果表明,抗倒性强的小黑麦品系茎秆基部节间中维管束的数目最多,大粒1号品系次之,中国春品种最少;小黑麦和大粒1号茎秆的纤维素含量均高于中国春;小黑麦的弯曲强度最高,弹性模量较大,这与其较强的抗倒伏能力相一致.The stem microscopic structure, chemical composition, and mechanical property of bending strength and elastic modulus in Hexaploid triticale and common wheat variety Chinese spring（CS） and Large kernel No. 1 were studied. The results showed that the number of vascular bundles on cross sec- tion were： Hexaploid triticale 〉 Large kernel No. 1 〉 CS; stem cellulose content in large grain and Hexaploid triticale was higher than that in CS. The highest bending strength and larger elastic modulus were found in Hexaploid triticale. These results were correspondant with their lodging resistance prop- erties.

关 键 词：小麦 茎秆 微观结构 纤维素 抗倒伏 

分 类 号：S512.1[农业科学—作物学]