荞麦不同器官总黄酮含量的日变化研究

Study on Diurnal Variation of Total Flavonoids Content in Different Organs of Buckwheat

研究荞麦初花期不同器官总黄酮含量的日变化趋势、最佳取样时间和取样部位,为荞麦的综合开发利用提供理论依据。对4份来自不同地区的甜荞和苦荞不同器官的总黄酮含量进行了日变化研究。结果表明,一天中同一品种不同器官中的黄酮含量均表现为花>叶>茎>根,且花和叶中的含量显著大于茎和根,不同品种各器官中总黄酮含量的日变化差异较大。

To study the diurnal variation trend of the total flavonoids content in different organs on early flowering of buckwheat,and to provide the best collecting time and organs,so as to provide a theoretical basis for the comprehensive development and utilization of buckwheat.The diurnal variation of total flavonoids content in different organs of 4 materials were determined in the optimum extracting conditions.The results showed that the total flavonoids contents in different organs of the same species with various harvesting time were as followes： the contents in flowers were the highest,then the contents in leaves,stems and roots.And the contents in flowers and leaves were significantly higher than that in stems and roots.The diurnal changes of the total flavonoids contents from different organs in the different varieties were also quite different.