中文摘要：

目的：探索中药材洋金花最佳采收期评价新方法的可行性。方法：将洋金花的生长过程进行Logistic生长曲线方程拟合,建立数学模型,运用有序聚类分析的方法将其生长过程划分并将各划分期拟定为采收期,以生物活性成分为指标,结合产量对洋金花最佳采收期进行评价。结果：洋金花的生长过程与Logistic生长曲线方程拟合度良好,有序聚类分析后将洋金花采收期拟定为五个时期,评价后发现与以往采收期试验研究结果有差别。结论：洋金花药材最佳采收期评价新方法可行。

英文摘要：

Objective：Study the best harvesting period of Chinese herbal medicines Flos Datura new approach of evaluating the feasibility. Methods：Fitting the growth process of the Flos Datura with Logistic growth curve equation,establishing a mathematical model,using an orderly method of cluster analysis of their growth process and that will be divided into different view to the preparation for the harvest period,as an indicator of biological active ingredients,combined output to evaluate the best harvesting period the Flos Datura. Results：Its growth process fitted the Logistic growth curve equation excellently,orderly method of cluster analysis would be prepared for five harvest time periods,the evaluation found that there were differences compared with the experimental results. Conclusion：The new evaluation method of the optimal harvest time of the Flos Datura medicine is feasible.