Effects of height and organs on flavonoids of Crataegus microphylla C. Koch in Iran

This study was conducted to evaluate the effect of height and organs on the amount of two flavonoids in Rutin and Quercetin in three height lines of 100, 1000 and 2000 m in the heights of the north of Iran. To study the effect of height and organ on the amount of two flavonoids of Rutin and Quercetin, the simple nested experimental design was used and in each height two organs (flower and leaf) was studied to measure Rutin and Quercetin and all the plant organs were used to measure the total flavonoids. The average comparisons determined that 100 m height has the highest amount of Rutin and Quercetin also a significant difference was observed in 1% level between the amount of Rutin and Quercetin in flowers and leaves at different heights. The amount of Rutin in all three heights was in the leaf more than in the flower, but for Quercetin the reverse was true so that the amount of this material in all three heights were in the flower more than in the leaf. The effect of height on the amount of total flavonoids was significant in 1% level as its highest amount was observed at 1000 m height

Crataegus microphylla, flavonoids, rutin, quercetin.