中文摘要：

利用染色体常规制片技术分析了45个从荷兰引进的百合品种的染色体倍性,包括21个亚洲百合、3个麝香百合、7个东方百合、8个LA杂交品种、2个LO杂交品种、4个OT杂交品种。在21个亚洲百合中,12个品种（＇Eleganza＇、＇Monte Negro＇、＇Renoir＇、＇Black Bird＇、＇Butter Pixie＇、＇Orange Matrix＇、＇Petit Brigitte＇、＇Pink Pixie＇、＇Lollypop＇、＇Red Latin＇、＇Marrakech＇和＇Pollyanna＇）为二倍体（2n=2x=24）,5个品种（＇Navona＇、＇Orange Pixie＇、＇Elodie＇、＇Vermeer＇和＇Lyon＇）为三倍体（2n=3x=36）,4个品种（＇Brunello＇、＇Tresor＇、＇Val di Sole＇和＇Detroit＇）为四倍体（2n=4x=48）;3个麝香百合品种（＇White Heaven＇、＇Gelria＇和＇White Fox＇）为二倍体（2n=2x=24）;7个东方百合品种（＇Siberia＇、＇Sorbonne＇、＇Maru＇、＇Dynamite＇、＇Dordogne＇、＇Montezuma＇和＇Miss Lucy＇）为二倍体（2n=2x=24）;8个LA杂交品种（＇Brindis＇、＇Courier＇、＇Pavia＇、＇Advantage＇、＇Mestre＇、＇Mombasa＇、＇Pirandello＇和＇Serrada＇）为三倍体（2n=3x=36）;两个LO杂交品种（＇Triumphator＇和＇White Triumph＇）为三倍体（2n=3x=36）;4个OT杂交品种中＇Yelloween＇和＇Red Dutch＇为二倍体（2n=2x=24）,＇Conca D＇Or＇和＇Golden City＇为三倍体（2n=3x=36）。该结果表明,组内杂交品种（亚洲百合、东方百合和麝香百合）中,除亚洲百合中有5个三倍体和4个四倍体品种外,其余22个为二倍体品种,因而多数组内杂交品种为二倍体品种;而组间杂交品种（LA、OT和LO）,只有OT中2个品种为二倍体,其余12个皆为三倍体。

英文摘要：

45 lily cultivars imported from the Netherlands,including 21 Asiatic lilies,three Longiflorum lilies,seven Oriental lilies,eight LA hybrid cultivars,two LO hybrid cultivars and four OT hybrids cultivars,were analyzed using conventional chromosome preparation in this paper. Among the 21 Asiatic cultivars,12 of them（‘Eleganza’,‘Monte Negro’,‘Renoir’,‘Black Bird’,‘Butter Pixie’,‘Orange Matrix’,‘Petit Brigitte’,‘Pink Pixie’,‘Lollypop’,‘Red Latin’,‘Marrakech’,and ‘Pollyanna’）are diploid（2n = 2x = 24）,five of them（‘Navona’,‘Orange Pixie’,‘Elodie’,‘Vermeer’and‘Lyon’）are triploid（2n = 3x = 36）,the rest fou（r‘Brunello’,‘Tresor’,‘Val di Sole’and‘Detroit’）are tetraploid（2n = 4x = 48）. All the three Longiflorum lilies（‘White Heaven’,‘Gelria’and‘White Fox’）are diploid（2n = 2x = 24）. All seven Oriental lilie（s‘Siberia’,‘Sorbonne’,‘Maru’,‘Dynamite’,‘Dordogne’,‘Montezuma’and‘Miss Lucy’）are also diploid（2n = 2x = 24）. The eight LA hybrids（‘Brindis’,‘Courier’,‘Pavia’,‘Advantage’,‘Mestre’,‘Mombasa’,‘Pirandello’and‘Serrada’）are all triploid（2n = 3x = 36）. Two LO hybrids（‘Triumphator’and‘White Triumph’）are also triploid（2n = 3x = 36）. Among the four OT hybrids,‘Yelloween’and‘Red Dutch’are diploid（2n = 2x = 24）,while‘Conca D’Or’and‘Golden City’are triploid（2n = 3x = 36）. The results show that most of the lily cultivars from intra-section hybridization（i.e.,Asiatic,Oriental and Longiflorum lilies）are diploid except for five triploid and four tetraploid Asiatic lilies,by contrast,nearly all lily cultivars from inter-section hybridization（i.e.,LA,OT and LO）are triploid except for two diploid OT cultivars.