the phloridzin content of the leaves of Malus hupehensis from high altitude(1 600 m)is 8.27%,significantly higher than the low altitude(50 m).

• 高海拔(1600m)生长的湖北海棠叶中含根皮苷8.；27%25；明显高于低海拔(50m)生长的湖北海棠。