摘要
目的:研究不同含水量当归种子贮藏过程中的生理生化特性。方法:每隔2月测定种子发芽率、发芽指数、相对电导率、超氧物歧化酶(SOD)活性、可溶性糖及蛋白质含量的动态变化。结果:在15℃条件下密闭贮藏10月,含水量为2.85%的当归种子能保持85%以上的发芽率;随着含水量降低,种子浸出液相对电导率增幅减小,SOD活性和蛋白质含量下降趋势变小,可溶性糖含量变化较为稳定。结论:在阴凉条件下,适度降低含水量能延长当归种子的贮藏寿命,而增加含水量会加速其种子的劣变进程。
Objective:To study the physiological and biochemical changes during storage of angelica seeds with different moisture contents.Method:The dynamic changes of percentage and index of seeds germination,relative conductivity,superoxide dismutase(SOD) activity,contents of soluble sugar and protein were determined at an interval of every two months.Result:Under the conditions stored in sealed paper cups at 15 ℃ for 10 months,the germination percentage of angelica seeds with 2.85% of moisture content was kept above 85%.With moisture content reducing,the increase rate of relative conductivity decreased,the down trend of SOD activity and protein content were weakened,and soluble sugar content kept stable.Conclusion:In cool conditions,a modest low moisture content of seeds can be beneficial to prolong the longevity of angelica seeds,while high moisture content will accelerate the deterioration process of the seeds.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2012年第2期181-185,共5页
China Journal of Chinese Materia Medica
基金
国家自然科学基金项目(81060327)
甘肃省中医药科研立项课题(GZK-2010-41)
关键词
当归种子
含水量
发芽力
生理生化
angelica seeds
moisture contents
seed germination capacity
physiological change
