PEG-6000模拟干旱胁迫对青稞种子萌发的影响  

Effects of PEG-6000 Simulated Drought Stress on the Germination Period of Highland Barley Seeds

作　　者：彭玉琳 夏天意 邹云阳 王浩 白玛德吉[1] 昌西[1] PENG Yulin;XIA Tianyi;ZOU Yunyang;WANG Hao;BAI Madeji;CHANG Xi(Plateau Crop Molecular Breeding Laboratory,Tibet College of Agriculture and Animal Husbandry,Linzhi Tibet 860000,China)

机构地区：[1]西藏农牧学院高原作物分子育种实验室,西藏林芝860000

出　　处：《种子》2022年第3期58-62,共5页Seed

基　　金：国家自然科学基金项目(31960404)。

摘　　要：为探究干旱对青稞萌发的影响,以20个青稞种质为研究材料,采用17%PEG-6000模拟干旱胁迫,测定其萌发指标(发芽势、发芽率、芽长、根长、芽干重和根干重等),利用相关性分析、主成分分析、综合评价方法以及聚类分析对供试材料抗旱性进行鉴定。结果表明,与对照处理比较,17%PEG胁迫下,所有材料的萌发指标均受到抑制,但不同材料之间存在差异性。To explore the effects of drought on the germination performance of highland barley seeds,20 highland barley germplasms were used as research materials to measure germination-related indexes including germination potential,germination rate,bud length,root length,bud dry weight and root dry weight under simulated drought stress with 17%PEG-6000.Simultaneously,correlation analysis,principal component analysis,comprehensive evaluation methods and cluster analysis were used to identify the drought resistance of tested materials.The results showed that,the germination indexes of all materials were inhibited under 17%PEG stress,but there were differences between different materials compared with the control.

关 键 词：青稞 PEG-6000模拟干旱 相关性分析 主成分分析 聚类分析 

分 类 号：S512.3[农业科学—作物学]