Preliminary discussion on the standards for classification of 1-year nursery stuck of Tectona grandisL. is conducted with the method of gradual cluster analysis and relevant quality index collection.
通过相关分析进行质量指标提取，采用逐步聚类分析方法，对柚木1年生苗木分级标准进行了初步探讨。
2
Objective: To study on the extraction technology and content of flavonoids of Citrus grandis (L.)
目的：研究柚叶中总黄酮的提取工艺并测定总黄酮的含量。
3
Results: The content of total flavonoids in Citrus grandis (L. ) Osbeck of last year is a little more than the content of the year before last year.