饲料研究2026，Vol.49Issue(8)：124-129,6.DOI:10.13557/j.cnki.issn1002-2813.2026.08.020
5份野生垂穗披碱草种子萌发期耐旱性评价
Evaluation of drought tolerance during seed germination in five wild Elymus nutans accessions
摘要
Abstract
The experiment aimed to screen drought tolerance Elymus nutans materials,and investigate changes in their drought tolerance during seed germination after propagation.Five wild Elymus nutans seeds collected from Xizang and their harvested seeds after propagation were used as materials,polyethylene glycol 6000(PEG-6000)solution was used to simulate drought stress,and germination experiments were carried out under laboratory conditions,to comprehensively evaluate the drought tolerance of their germination period.The results showed that the drought tolerance of five wild Elymus nutans seeds during germination was as follows:Shenzha County>Kangma County>Langkazi County>Suo County>Dangxiong County(SZX>KMX>LKZ>SX>DX).After field propagation,except for the SZX material which showed a decrease in drought tolerance during germination compared to the wild species,the drought tolerance of the other four materials increased compared to the wild species.The study shows that wild Elymus nutans materials collected from Shenzha County have the best drought tolerance and better production performance during seed germination,and can be used as drought tolerant materials for breeding and utilization.关键词
野生垂穗披碱草/萌发期/耐旱性/扩繁Key words
wild Elymus nutans/germination/drought tolerance/propagation分类
农业科技引用本文复制引用
郭荣明,苗彦军,赵芯,时军,程方方,杨君辉,顿珠曲卓,李莱茵..5份野生垂穗披碱草种子萌发期耐旱性评价[J].饲料研究,2026,49(8):124-129,6.基金项目
国家自然科学基金项目(项目编号:U21A20240) （项目编号:U21A20240）
西藏自治区重点研发计划项目(项目编号:XZ202401ZY0046) （项目编号:XZ202401ZY0046）
西藏自治区自然科学基金项目(项目编号:XZ202401ZR0137) （项目编号:XZ202401ZR0137）
