丹参种子的超干贮藏研究  

Studies on ultra-dry storage of Salvia miltiorrhiza seeds

作　　者：成清琴[1] 王磊[1] 陈娟[1] 慕小倩 

机构地区：[1]西北农林科技大学生命学院,陕西杨凌712100

出　　处：《中草药》2010年第5期825-829,共5页Chinese Traditional and Herbal Drugs

基　　金：国家"十一五"科技支撑计划;丹参生产精准管理与远程信息控制试验与示范(2007BAD79B06)

摘　　要：目的确定丹参种子的最适超干方法和不同贮藏时间内的最适超干水分,并探索耐藏机制。方法用硅胶常温干燥法和恒温鼓风箱50℃干燥法将丹参种子干燥到不同的含水量后进行贮藏,通过测定种子发芽率、发芽势、活力指数等指标确定最适超干方法及超干水分;通过测定可溶性糖的量和MDA量来探索种子耐藏性。结果采用硅胶脱水比用烘箱更安全;超干丹参种子在贮藏初期耐藏性优势明显,随着贮藏时间的延长,超干种子相对于对照的耐藏性优势下降;常温密封贮藏丹参种子的最适含水量约为7.5%;种子耐藏性与种子中可溶性糖量密切相关。结论丹参种子可以采用超干贮藏方法来保存种质资源。Objective To study the optimum ultra dry method and moisture at different storage time for Salvia miltiorrhiza seeds and find the principle of storability. Methods S. miltiorrhiza seeds were dried by silica gel at room temperature and by the oven at constant temperature 50 ℃ to obtain various moisture content before stored sealed at room temperature.The optimum ultra dry method and the optimal moisture were evaluated by measuring the germination rate, germination tendency, and vigor index, etc.Soluble sugar and MDA content were measured to investigate the seed storability .Results Desiccation by silica gel was more proper than by oven; ultra dry storage of seeds has obvious advantages at the early stage, but with the prolong of the storage time, the advantages decreased; The optimal moisture for S. miltiorrhiza seeds storage at room temperature is about 7.5%; Seed storability is closely related to soluble sugar content in the seeds Conclusion S miltiorrhiza seeds can be ultra dry stored to preserve germplasm resources.

关 键 词：丹参种子 超干贮藏 最适含水量 

分 类 号：R284.1[医药卫生—中药学]