Four cultivars,‘Taishanhong',‘Daqingpi',‘Moshiliu'and‘Sanbai',with different colors were selected as materials to determine flavonoids( FLs) in peel and juice by HPLC method. Five kinds of flavonoids were analyzed,which were myricetin,quercetin,luteolin,kaempferol and apiolin. The results showed that the five kinds of FLs were all identified in peel and juice,in which,myricetin and quercetin were the major ones. There were differences in FLs content between different cultivars. ‘Sanbai'had the highest total...