山西农业大学学报（自然科学版）2019，Vol.39Issue(2)：1-6,6.DOI:10.13842/j.cnki.issn1671-8151.201811014
抗坏血酸引发对Na2 SO 4 胁迫下燕麦种子活力的影响
Effects of seed priming with ascorbic acid on the vigorof oatseeds under Na2 SO4 stress
摘要
Abstract
[Objectives]This study was undertaken to explore the effect of exogenous ascorbic acid (ASC)on the vigor of oat seeds under Na2 SO4 stress.[Methods]Oat seeds were primed with ASC at different concentrations (0,0.5,1.0, 1.5,and 2.0 mmol·L-1 ),and germinated under Na2 SO4 stress at three different concentrations (0,50,and 100 mmol·L-1 ).The alteration ofseed germinationratio,germination index,mean germination time,and seedling vigor index was analyzed.[Results]Study results indicated that Na2 SO4 stressproduced inhibitory activity on seed germina-tionrate,germination index,and seedling vigor index of oat seeds with extendedaverage germination time.However, these negative impacts were compensated by ASC priming at certain concentration.The vigor of oat seeds was im-proved by ASC priming under Na2 SO4 stress,and these effects were closely related to the concentration of both ASC and Na2 SO4 .This study determined that the highest growth rate and vigor were reached out at the ASC concentration of 1.5 mmol·L-1 coupled with Na2 SO4 stress at 100 mmol·L-1 .[Conclusion]ASC priming can improve seed vigor, but should be used with caution according to the seed vigor of oat seeds and the degree of salt stress.关键词
抗坏血酸/种子引发/燕麦/种子活力/Na2 SO4 胁迫Key words
Ascorbic acid/Seed priming/Oat/Seed vigor/Na2 SO4 stress分类
农业科技引用本文复制引用
夏方山,王雅聪,董秋丽,王明亚,丁荷星,朱慧森,董宽虎..抗坏血酸引发对Na2 SO 4 胁迫下燕麦种子活力的影响[J].山西农业大学学报（自然科学版）,2019,39(2):1-6,6.基金项目
山西省自然基金面上青年基金项目(201601D202075) （201601D202075）
国家现代农业产业体系(CARS-06-13.5-A28) （CARS-06-13.5-A28）
山西省科技重点研发项目(2015-TN-09) （2015-TN-09）
山西省重点研发一般项目(201603D221003-2) （201603D221003-2）
山西农业大学青年拔尖创新人才支持计划(TYIT201406) （TYIT201406）
