Genomic DNA of three loquat cultivars (Zaozhong 6, Jiefangzhong and Moriowase) was extracted for RAPD analysis with 43 random primers. The results showed that 255 bands were amplified from the 3 cultivars, among which 82 bands were common with the monomorphic degree of 32.16%. This suggested that genetic relationship was close among the three loquat cultivars. Parents'characteristic RAPDs emerged in filial generations by comparison with parent's common bands. 7 amplifying bands were detected in the 3 culti...