海水胁迫对马棘种子萌发的影响  

Effect of Seawater Stress on Germination of Indigofera pseudotinctoria Seeds

作　　者：董祥开[1] 魏景 蔡悦 杨丹 王敏杰 DONG Xiang-kai;WEI Jing;CAI Yue;YANG Dan;WANG Min-jie(College of Ocean and Port,Lianyungang Normal College,Lianyungang 222006,China)

机构地区：[1]连云港师范高等专科学校海洋港口学院,江苏连云港222006

出　　处：《黑龙江农业科学》2018年第12期104-106,共3页Heilongjiang Agricultural Sciences

基　　金：2017年连云港市第五期"521工程"资助项目;2018年江苏省高等学校大学生创新创业训练计划资助项目(2017lsz17)

摘　　要：为调查研究药用植物马棘的盐碱耐受性,利用不同浓度梯度的海水对马棘种子进行处理,观察并记录马棘种子萌发的情况。试验采用培养皿纸培法,通过分析在0(对照)、1%、5%、10%、20%、30%和40%七组海水溶液中生长的马棘种子的发芽率、发芽势、发芽指数、简化活力指数等参数以判定其对盐碱地的耐受力。结果表明:不同浓度下的马棘种子发芽情况不同,在5%以下的海水浓度下,种子的发芽率、发芽势及其它指标与对照溶液相差不大,随着海水浓度的增长呈快速下降趋势,说明海水浓度对马棘种子的生长具有抑制作用。In order to investigate the salt-alkali tolerance of Indigofera pseudotinctoria which is the medicinal plant,the seeds of Hippophae rhamnoides were treated with sea water of different concentration gradients,and the germination of the seeds was observed and recorded.The paper culture method was used to determine the tolerance of Indigofera pseudotinctoria seeds to saline-alkali soil by analyzing the germination rate,germination potential,germination index and simplified vigor index of seeds grown in0(control),1%,5%,10%,20%,30%and40%seawater solution.The results showed that the seed germination of Indigofera pseudotinctoria was different at different concentrations.The seed germination rate,germination potential and other indicators were similar to those of the control solution under5%seawater concentration.With the increase of seawater concentration,the seed germination decreased rapidly,indicating that seawater concentration inhibited the growth of Indigofera pseudotinctoria seeds.

关 键 词：马棘 海水胁迫 种子萌发 

分 类 号：Q945.78[生物学—植物学]