板蓝根种子和幼苗对不同盐胁迫的响应  

Responses of Seed and Seedling of Radix Isatidis to Different Salt Stress

作　　者：赵春[1] 韩金龙[2] 隋学圃[1] 王志芬[2] 单成钢[2] 李兆勇 ZHAO Chun;HAN Jin-long;SUI Xue-pu;WANG Zhi-fen;SHAN Cheng-gang;LI Zhao-yong(Dongying Vocation College,Dongying 257091,China;Institute of Agro-Food Science and Technology/ Research Center of Medicinal Plants,Shandong Academy of Agricultural Sciences/Key Laboratory of Novel Food Resources Processing,Ministry of Agriculture,Ji＇nan 250100,China;Kenli Agricultural Bureau of Shandong Province,Dongying 257500,China)

机构地区：[1]东营职业学院,山东东营257091 [2]山东省农业科学院农产品研究所药用植物研究中心(农业部新食品资源加工重点实验室),山东济南250100 [3]东营市垦利区农业局,山东东营257500

出　　处：《现代中药研究与实践》2018年第4期1-4,共4页Research and Practice on Chinese Medicines

基　　金：山东省农业产业技术体系中草药创新团队项目(SDAIT-20);山东省科技重大专项(2015ZDJS03001);山东省农业科学院农业科技创新工程(GXGC2016A02-4;CXGC2017D02)

摘　　要：目的研究板蓝根种子在发芽和幼苗阶段对Na Cl和混合盐胁迫的反应。方法用不同浓度的Na Cl溶液和混合盐溶液进行试验,采用发芽率、相对生长速率等指标,对它们的耐盐性进行了分析和评价。结果最终得到黄河三角洲盐碱地板蓝根的最大耐盐量。结论盐浓度低于40 mmol/L时,板蓝根种子的发芽率、相对发芽率、相对盐害率和相对生长率不受影响;发芽率随着盐浓度增高而逐渐下降,同时盐胁迫显著影响了种子的萌发进程,使种子发芽明显滞后。盐浓度高于80 mmol/L时,板蓝根幼苗相对生长率降幅明显,处理间差异显著。Objective To explore the expenses of seed and seedling of Radix Isatidis treated with sodium chloride and natural mixed salt solutions. Methods Experiment with different concentrations of salt solution, evaluate the salt tolerance with parameters including the germination rate, relative growth rate. Results Finally obtain the maximum salt tolerance of Radix Isatidis in Yellow River delta saline-alkali soil. Conclusion Salt solution lower than 40 mmol/L have no effects on germination rate, relative germination rate, relative salt-injury rate and relative growth rate of seed ling of Radix isatidis. With salinity increasing, germination rate decreased gradually. At the same time, the germination process is retarded by the high salt concentration sharply. When salt solution higher than 80 mmol/L, the relative growth rate of Radix isatidis seedlings under salt stress are distinctly lower and significantly different compared to its control.

关 键 词：板蓝根 盐胁迫 耐盐性 

分 类 号：R282[医药卫生—中药学]