首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   2篇
  免费   0篇
  2018年   1篇
  2013年   1篇
排序方式: 共有2条查询结果,搜索用时 0 毫秒
1
1.
Fritillaria pallidiflora Schrenk has been treasured in traditional classic medicine as an antitussive, antiasthmatic and expectorant for hundreds of years. With gradually decreasing wild F. pallidiflora resources, the herb can no longer satisfy the demand. Artificial cultivation is one of the most effective ways to solve the contradiction between supply and demand in the medicinal material market. During the growth of Rhizomes medicinal plants, root biomass and active ingredient content showed dynamic accumulated variation with increasing cultivation years. Up to now, hardly any attempts have been made to investigate the relationship between quality and cultivation years of F. pallidiflora. Therefore, in this paper, we determined the optimum harvesting time by comparing biomass and biological characteristics of F. pallidiflora at different cultivation times. High-performance liquid chromatography with evaporative light scattering detection and phenol-sulfuric acid visible spectrophotometry was performed to determine imperialine and polysaccharide content of F. pallidiflora bulbs. From year 1 to 6 of cultivation, we observed an upward trend in plant height, diameter and dry weight of F. pallidiflora, while water content decreased. Plant height and dry weight increased remarkably during the fourth year of cultivation. The content of imperialine and polysaccharide of F. pallidiflora bulbs, on the other hand, showed an upward trend from year 1 to 3, after which it decreased from year 3 to 6. By comparing plant growth, biomass development and the accumulation of imperialine and polysaccharide, the best harvesting time of F. pallidiflora was determined to be after 4 years of cultivation. Our results showed that it is possible to establish a “safe, effective, stable and controllable” production process, which could play an important role in achieving sustainable utilization of F. pallidiflora resources.  相似文献   
2.
伊犁贝母的主要药用部位是鳞茎,具有清热化痰、润肺止咳的功效,野生伊犁贝母资源曾被滥采滥挖,导致其药用资源短缺,新疆多地开展了人工伊犁贝母培育工作,但仍有许多不尽人意之处。本文就伊犁贝母鳞茎中以西贝素为主要代表的生物碱的化学成分、药理活性、临床作用、栽培工艺、开发应用现状及前景等方面进行全面的综述,为伊犁贝母药用资源的进一步深入研究和开发提供有益的参考和对策。  相似文献   
1
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号