干旱胁迫对不同谷子品种茎秆力学特性的影响  

Effects of Drought Stress on the Mechanical Properties of Different Millet Varieties

作　　者：王凯玺[1] 陈国秋[1] 张海金[1] 张文飞[1] 曹锐[1] WANG Kai-xi;CHEN Guo-qiu;ZHANG Hai-jin;ZHANG Wen-fei;CAO Rui(Institute of Soil and Water Conservation in Liaoning, Chaoyang, Liaoning 122000)

机构地区：[1]辽宁省水土保持研究所,辽宁朝阳122000

出　　处：《辽宁农业科学》2018年第1期17-19,共3页Liaoning Agricultural Sciences

基　　金：现代农业产业技术体系专项资金(CARS-06-13.5-B15);中央引导地方科技发展专项资金(2017108006)

摘　　要：通过研究谷子在灌浆中后期重度干旱胁迫对不同谷子品种茎秆力学特性的影响,从茎秆力学探讨谷子抗旱的能力。以当前主栽的4个谷子品种为材料,比较干旱胁迫对穿刺强度、茎秆抗折力、压碎强度等抗倒力学指标的影响,评价谷子的抗旱能力。结果表明,干旱胁迫对谷子茎秆力学特性影响显著,朝谷15号抗倒伏力学最强,朝谷58、燕谷18号次之,朝谷14号最弱。By studying the influence of the severe drought stress on the mechanical properties of different mil-let varieties in the middle and later stages of grouting,the ability of the millet to resist drought was discussed from the stem mechanics.The effects of drought stress on anti-inverted mechanical indexes such as puncture strength,stem resistance and crushing strength were compared with the four grain cultivars currently planted,and the drought resistance capacity of the millet was evaluated.The results showed that the influence of drought stress on the mechanical properties of grain was significant,chaogul5>chaogu58>yangul8>cha-ogul4.

关 键 词：干旱胁迫 谷子 茎秆 力学特性 

分 类 号：S515.048[农业科学—作物学]