Kinetic studies on flavonoids accumulation in different parts of tartary buckwheat during germination process

Kinetic studies of rutin,quercetin,and total folavonoids accumulation in radicle,hypocotyl and cotyledon of tartary buckwheat during germination process were investigated.The result showed that total flavonoids content increased steadily during the first seven days.The highest flavonoids content was obtained on the 9th day,and maintained a stable level in the subsequent days.During the culture period,the flavonoids content of hypocotyl decreased gradually.For the rutin accumulation,it was in accordance with the kinetics of the total folavonoids.The quercetin content in radicle and cotyledon of tartary buckwheat reduced gradually during the germination process.However,the quercetin accumulation increased steadily.Moreover,the total flavonoid content of cotyledon was higher than that of hypocotyl,and the flavonoid content of hypocotyl was higher than that of radicle at the same culture period.