Abstract:In order to breed new rose cultivars with flower fragrance and strong abiotic and biotic resistance,we carried out 72 interspecific hybridization combinations,using Rosa xanthina f.normalis,R.xanthina,R.primula,R.bella,R.macrophylla var.glandulifera,R.multiflora f.carnea and five R.rugosa cultivars as male parents,and eleven modern rose cultivars and R.odorata as female parents.The fruit setting,pollen shape and stigma form of the parents,as well as the pollen germination of the male parents were observed.The results showed that:(1)Except R.xanthina,all other pollen providers can be used as male parents to hybridize with modern rose cultivars.The fruiting rate and the hybrid seed germination rate were significantly different among different cross combinations.(2)The pollen and stigma shape had little effect on the fruiting rate during hybridizing;however the pollen germination rate had remarkable effect on it.Fourteen cross combinations with high fruiting rate and high hybrid seed germination rate were selected,and 4 suitable female parents (R.odorata,‘Orange Wave’,‘Goldmarie’ and ‘Pink Peace’) and 6 suitable male parents(R.xanthina f.normalis,R.primula,R.bella,R.macrophylla var.glandulifera,R.multiflora f.carnea,R.rugosa ‘Dahong Zizhi’) were recommended for interspecific hybridization.