国家药用植物种质资源库中期库贮存7种药用植物种子生活力监测  

Viability of 7 kinds of medicinal plant seeds stored in medium-term gene bank of the National Medicinal Plant Gene Bank

作　　者：金钺[1] 杨成民[1] 魏建和[1] 

机构地区：[1]中国医学科学院北京协和医学院药用植物研究所,北京100193

出　　处：《中国中药杂志》2016年第9期1592-1595,共4页China Journal of Chinese Materia Medica

基　　金：国家"重大新药创制"科技重大专项(2012ZX09304006);国家科技支撑计划项目(2012BAI29B02);国家公益性行业科研专项课题(201407005);内蒙古自治区科技重大专项

摘　　要：该文通过测定国家药用植物种质资源库中期库中保存4年的桔梗、荆芥、穿心莲、党参、黄芩、益母草、冬凌草等7种药用植物种子发芽率,分析了种子入库前后发芽率的变化情况并评价了其生活力的变化。结果表明在中期库贮藏4年后7种药用植物的种子发芽率均下降,除荆芥、黄芩种子发芽率下降不显著外,其余5种药用植物的种子发芽率显著下降。桔梗、党参、冬凌草种子入库前发芽率越高,贮藏后发芽率下降幅度越小,穿心莲呈现相反的趋势,荆芥、黄芩各发芽率区间下降的幅度大致相同。低温贮藏能有效地延长了种子寿命,保持了种子活力,有必要积极开展主要药用植物种子的贮藏特性研究,并制定种子的监测方案和更新标准。In order to evaluate seed viability of Platycodon grandiflorum,Schizonepeta tenuifolia,Andrographis paniculat,Codonopsis pilosula,Scutellaria baicalensis,Leonurus japonicus,Rabdosia rubescens,stored in the medium-term gene bank of the National Medicinal Plant Gene Bank for 4 years,we tested seed germination rate of 7 species of medicinal plant and analyzed the change of significance of levels of the germination rate in pre and post store. Seed germination rates of 7 species of medicinal plants were all decreased after 4 years,and the decrease of S. tenuifolia and S. baicalensis germination rates were much smaller than other species. The higher initial germination rate of P. grandiflorum,C. pilosula,R. rubescens seed has the smaller decline of germination rate,but the data of A. paniculata showed the opposite trend. The rate decline of the germination of S. tenuifolia and S. baicalensis was roughly the same in different germination rate interval. The results showed that low temperature storage could effectively prolong the seed longevity,and maintain the seed vigor. Moreover,it is necessary to study on the storage characteristics of the main medicinal plant seeds,and establish the monitoring plan and regeneration standard.

关 键 词：中期库 药用植物种子 生活力 

分 类 号：S567[农业科学—中草药栽培]