Abstract: [Objective] This experiment aims to study the relationship between Coreopsis tinctoria density, pinching times, harvest time and Coreopsis tinctoria yield and quality.[Method]The orthogonal experiment was used to determine the yield and the content of active components (total flavonoids, chlorogenic acid, total amino acid, tea polyphenol and total sugar) in different treatments of four different time periods.The comprehensive measures were screened out to select the reasonable combination of cultivation techniques.[Result]The study found that the best condition of growth and the highest yield of Coreopsis tinctoria was treatment VII (spacing of 25 cm × 40 cm, no pinching, picking every day) and treatment VI (spacing of 20 cm × 40 cm, pinching twice, picking every day).The total yield of dried flowers of Coreopsis tinctoria treatment VII was 53.52 kg/667 m2, the content of total flavonoids was about 13.51;, the content of chlorogenic acid was about 0.55;, the total amino acid content was about 10.78;, the content of tea polyphenol was about 10.27;, and the total sugar content was about 14.85;;The total yield of dried flowers of Coreopsis tinctoria treatment VI reached 50.49 kg/667 m2,the content of total flavonoids was 13.79;, the content of chlorogenic acid was about 0.57;, the total amino acid content was about 10.69;, the content of tea polyphenol was about 10.54;, and the total sugar content was about 17.04;.Although the yield of Coreopsis tinctoria treatment VI was high, considering that the two pinching times would increase the labor cost, it was not recommended as a combination of reasonable cultivation measures.Both of the yield and the quality of Coreopsis tinctoria that showed better results were the treatment I.(spacing of 15 cm×40 cm, no pinching, picking every day), whose yield was only lower than those of Coreopsis tinctoria treatment VII and VI.The yield was 45.81 kg/667 m2, the content of total flavonoids was15.46;,the content of chlorogenic acid was about 0.45;, the total amino acid content was about 12.40;, the content of tea polyphenol was about 10.65;, and the total sugar content was 14.39;.The other treatments were not prominent in plant growth, yield and quality.Treatment III (planting density of 40 cm×15 cm, pinching twice, picking once every 3 days) showed poor performance in yield and quality.[Conclusion]Different planting densities, pinching times and harvest time had a certain effect on the growth, the yield and the quality of Coreopsis tinctoria.

摘要： [目的]研究种植密度、摘心次数、采摘时间与雪菊产量、品质之间的关系,综合各个指标,筛选出雪菊栽培技术措施组合.[方法]采用正交试验设计方法,通过测定4个不同时间段、不同处理的雪菊产量、活性成分(总黄酮、绿原酸、总氨基酸、茶多酚、总糖)含量,进行方差分析.[结果]雪菊生长状况和产量表现最好的是处理7(种植密度40 cm×25 cm,不摘心,每天采摘)和处理6(种植密度40 cm×20 cm,摘心2次,每天采摘).处理7的干花总产量达53.52 kg/667 m2,总黄酮含量为13.51;,绿原酸含量为0.55;,总氨基酸含量为10.78;,茶多酚含量为10.27;,总糖含量为14.85;;处理6干花总产量达50.49 kg/667 m2,总黄酮含量为13.79;,绿原酸含量为0.57;,总氨基酸含量为10.69;,茶多酚含量为10.54;,总糖含量为17.04;;虽然处理6的产量较高,但考虑到生产上摘心2次会增加劳动力成本,因而不推荐作为合理的栽培措施组合.雪菊产量和品质均表现较好的是处理1(种植密度40 cm×15 cm,不摘心,每天采摘),其产量仅低于处理6和处理7,为45.81 kg/667 m2,总黄酮含量为15.46;,绿原酸含量为0.45;,总氨基酸含量为12.40;,茶多酚含量为10.65;,总糖含量为14.39;.其余处理在植株生长状况、产量和品质方面表现不够突出;处理3(种植密度40 cm×15 cm,摘心2次,3 d采摘一次)在产量和品质方面均表现较差.[结论]不同种植密度、摘心次数及采摘时间对雪菊植株生长及开花、产量和品质均有一定的影响.