采叶对黄芪根有效成分含量影响

Influence of Leaf-picking on Effective Costituents of the Astragalus mongholicus Roots

运用正交设计,明确了采叶强度和采叶时间对黄茂根17种氨基酸总含量和黄芪甲甙含量均有显著影响。采叶强度是影响的最重要因素。随着采叶强度加大,采叶时间推迟,氨基酸总含量和黄芪甲甙含量都显著下降。采叶强度1/3和采叶时间6月15日左右的组合,则影响相对较小。

After the application of the orthogonal design, experiments show that the proportion and time of leaf -picking have a great influence not only on the total content of 17 kinds of amino acids but also on that of As-tragaloside. If the proportion is large and the time is delated, both contents of 17 kinds of amino acids and Astra-galoside will be reduced accordingly compared to the control group. There is less influence on the contents if the time of leaf -picking is set on June 15 each year and the picking proportion is 1 out 3.