内蒙古民族大学学报（自然科学版）2025，Vol.40Issue(3)：15-22,8.DOI:10.14045/j.cnki.15-1220.2025.03.003
干旱胁迫对大麦种子萌发和幼苗生长的影响
The Effect of Drought Stress on Barley Seed Germination and Seedling Growth
摘要
Abstract
Barley exhibits strong drought resistance and serves as a pioneer crop in arid regions.Different barley varieties exhibit distinct responses to varying concentrations of drought stress.Understanding how drought stress af-fects barley seed germination and seedling growth holds significant implications.In this study,five genotypes of barley were used to simulate drought stress with PEG-6000.Four treatments(0%,10%,20%and 30%)were set at the germi-nation stage,and five treatments(0%,10%,20%,30%and 40%)were set at the seedling stage to study the effects of different levels of stress on barley germination and seedling growth.The results showed that,with the increase of stress concentration,the germination indices of different barley varieties were inhibited to varying degrees.The germi-nation index,average germination time and bud length were significantly inhibited.At the seedling stage,except that the underground dry weight showed strong drought resistance at 30%concentration,other indexes were inhibited,and the aboveground fresh weight and aboveground dry weight were significantly inhibited.The results of principal compo-nent analysis showed that at the germination stage,the drought resistance of 07B083 was stronger at 10%and 20%concentrations.At the seedling stage,the drought resistance of Gan4 was stronger at 10%and 20%concentrations.关键词
大麦/干旱胁迫/萌发指标/幼苗生长Key words
barley/drought stress/germination period indicators/seedling growth分类
农业科技引用本文复制引用
考妍,靳亚楠,李建波,刘志萍,徐寿军..干旱胁迫对大麦种子萌发和幼苗生长的影响[J].内蒙古民族大学学报（自然科学版）,2025,40(3):15-22,8.基金项目
内蒙古自治区科技计划项目(2021GG0007) （2021GG0007）
内蒙古民族大学博士科研启动基金项目(BS540) （BS540）
