Total flavonoids content in stems, leaves and seeds of seven cultivars of Fagopyrum tataricum (L.) Gaertn. and a cultivar of F. esculentum Moench were determined by UV-visible spectrophotometry. The results show that total flavonoids content in leaves is higher. Total flavonoids content among different cultivars of F. tataricum has a great difference. Among seven cultivars of F. tataricum, total flavonoids content is the highest in leaves and seeds of ‘ Jiande Tartary Buckwheat’with 106.16 and 24.09 mg · g-1, respectively, and in stems of ‘ Dingbian Tartary Buckwheat’ with 34.65 mg · g-1. The comprehensive analysis result indicates that ‘ Jiande Tartary Buckwheat’ is the best germplasm resources of F. tataricum and worth to further extension.%@@ 苦养麦[F.tataricum( L.) Caertn.)的干燥成熟种子为常用中药材之一[1].苦荞麦及与其同属的甜荞(F.esculentum Moench)在中国大部分地区都有种植,经济价值和营养价值较高,含有丰富的蛋白质、氨基酸、维生素以及微量元素.苦养麦中还含有大量的黄酮类化合物,具有防治高血压、高血脂、冠心病等作用[2],其中芦丁含量较高[3-4].由于苦荞麦可药食两用,已开发成食品、饮料、化妆品和黄酮类产品等[5-9].
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